Atlantis Highlights in Materials Science and Technology

The phytocenotic diversity of the desert steppes is preserved due to the presence of the Bogdinsko-Baskunchaksky Nature Reserve and Elton Natural Park in the southern steppe subzone of the Russian Caspian Sea region. Steppes in the Trans-Volga region are more diverse than those in the Sarpinskaya lowland....

The present study reports the results of an investigation of a geometrically modified ejector refrigeration system. The primary focus is on improving the Entrainment Ratio (ER), which is defined as the ratio of the mass flow rate of secondary fluid to the mass flow rate of primary. It is observed that...

The orthogonal test was performed on 22MnB5 press-hardened Steel. The results show that the order of priority affecting the mechanical properties of spot welded joint is welding current, electrode pressure and welding time. The best mechanical properties of the welded joint and the good welding quality...

The natural-recreational potential of Eastern European countries is analyzed in this article. The potential for regional natural recreational resources use in order to develop an international tourism are shown, considering modern changes in the structure of tourists' demand and supply in the international...

Currently, commercial vehicles in China are facing severe pressure in terms of lightweighting. Hot stamping is one of the advanced process technologies that achieve the ultimate lightweighting of commercial vehicles and have the highest cost-effectiveness. Cargo box is currently one of the key lightweight...

The model for mixing wastewater and river water was built using Selector software. Chemical analysis of highly mineralized wastewater from the Usolye industrial zone which is one of the main pollutants of the Angara river, and river water in the area before and after exposure to technogenic sources was...

The hot stamping technology of ultra-high-strength boron steel is the most direct and effective way to realize the lightweight of automobiles. The high-strength zinc-coated (GA) steel with dual functions of barrier protection and cathodic protection have broad application prospects in the field of boron...

The article assesses natural landscape conditions for forming floods on the Alazeya river and their influence on the hydrological regime. Evaluation of the moistening mode showed that an increase in the water volume is caused by an increasing amount of precipitation. The factor determining variability...

Orifice meters are one of the most used flowmeters in the industry owing to its simple construction and easy maintenance. But high energy loss and inconsistent coefficient of discharge (Cd) of orifices are a major concern. This paper investigates the performance of an unconventional orifice plate designed...

This article uses high-strength steel plates to replace ordinary steel plates in terms of the general relationship between plate thickness reduction and strength, and designs a commercial vehicle hot press forming ultra-high strength lightweight fuel tank bracket. Based on the simulation analysis results...

The paper studies edaphic conditions of the cenopopulation of Tulipa gesneriana, T. biflora and T. biebersteiniana growing in the Black Lands nature reserve. These cenopopulations belong to rare and protected plants in many regions of Russia, including the Republic of Kalmykia. The soil profile cuts...

In this paper, hot stamping of Zn-coated PHS was introduced. Targeting to control or eliminate the liquid metal induced embrittlement phenomenon, a self-make atomization precooling apparatus was developed to solidification the melted coating during the former heating process. The key role of the apparatus...

The Kosinskie Lakes are the only natural reservoirs of glacial origin on the territory of Moscow that are part of the natural and historical Kosinski park. Moreover, they are a natural landmark. Therefore, they need to be studied thoroughly and attentively. The ecological situation of the area is quite...

This article designs a commercial vehicle hot press forming ultra-high strength and lightweight fuel tank bracket, and formulates a hot press forming process route. The model design is carried out using Siemens NX software, and the forming process analysis is carried out using AutoForm software. The...

High-strength steel hot-formed parts are widely used as safety protection parts for automobiles due to their ultra-high strength (1500–2000 MPa). In order to prevent the oxidation and decarburization of traditional high-strength steel sheets during the heating process of hot forming, and at the same...

Thixotropy, a time-dependent shear-thinning behavior, contributes to the flow and shape retention characteristics of inks used in extrusion-based 3D printing. This study investigates the effect of the thixotropic behavior of sodium Carboxymethyl cellulose (Na-CMC) solutions at varying concentrations...

Due to the low elongation of aluminum alloys at room temperature, which often leads to cracking during forming, hot stamping is commonly used to improve the formability of aluminum alloys. However, in traditional hot stamping processes, the solid solution treatment time is excessively long and cannot...

The article presents the results of studies on the development of methods for obtaining normal heights in Vietnam using the global model EGM2008 and software for processing GNSS measurements. Errors between normal heights calculated from the global geoid model EGM2008 and heights determined from GNSS...

In this study, the ZnFe coated boron steel specimens were treated by rapid heating at different heating rates from 20 ℃/s to 100 ℃/s. The coating morphologies and phase compositions were characterized to investigate the influence of heating rate on phase transformation of ZnFe coating. The results indicated...

This study presents an experimental investigation into the acoustic characteristics of supersonic jet impingement on two impingement plate configurations: flat and grooved. The experiments were carried out in an anechoic chamber using a Double Parabolic Nozzle. Key parameters varied during the tests...

To assess the current state of the coastal zone of the Sea of Azov, we made an analysis of socio-economic and environmental consequences of hazardous coastal processes, a comprehensive environmental and economic assessment, which includes the study of the main natural, economic, social and environmental...

Nowadays, the increasing requirements for energy conservation and emission reduction have fostered the application of the hot-stamped aluminum alloy for lightweight. However, it is difficult to achieve industrialized production because of the long-term process as well as high production costs. In this...

In this paper, the contact heating method was adopted to heat the aluminum alloy instead of furnace heating. During the process, the aluminum alloy sheet was placed in the preheated flat die under a certain press force for several seconds until the sheet reach the preset temperature. The heating curves...

The article touches upon the issue of automatic recognition and subsequent processing of data on natural and industrial objects of the world. The obtained data is a result of laser scanning. For data analysis in 2018 a research group, consisting of specialists from Kuban State Technological University,...

The rapid growth of automobile ownership has put tremendous pressure on the environment and energy, so it is particularly important to promote the lightweight of automobiles. Aluminum alloy is an ideal lightweight material with excellent comprehensive performance, which can improve the performance of...

In this study, a multi-step rapid heating procedure composed of two holding stages is developed to achieve fast alloying as well as less zinc loss of the zinc coating. The oxidation behavior during the first holding stage and the microstructure evolution during the final holding stage of the zinc coating...

Lake Valencia is the second most important natural freshwater basin in Venezuela. The expansion of industrial and agricultural activities and population growth over the past four decades has accelerated the process of eutrophication of the lake waters at such a rapid rate that it cannot be compensated...

This paper investigates the influence of spot-welding process on surface accuracy of cold and hot stamping assembly part. In order to control surface accuracy after spot welding, simulative work was carried out. In simulative work, welding sequence under given clamping position was considered. The results...

Wedge bodies are fundamental science hardware in high-speed even numerically modelling the physics of supersonic flow, and as such are one of the long-term legacies of airborne supersonic research to the aerospace field of thermodynamics and are found applying in practice in aerospace vehicles as in...

Automobile lightening is a direct and effective measure to realize energy saving and emission reduction. Using aluminum alloy and carbon fiber reinforced polymers (CFRP) composite materials to manufacture automobile parts can greatly reduce weight while enhance the overall strength and balance the overall...

The article analyzes the distortions introduced by the cartographic projection of Gauss. The authors justify that modern high precision measuring instruments should be accompanied by qualitative methods of measurement results processing in the mountainous areas. It is shown that the operation of transfer...

The article analyzes information on oil and gas deposits obtained by seismic exploration, geological and geophysical data compilation and reinterpretation for the western part of the Terek-Caspian trough. The tabulated data on morphological parameters (linear dimensions, amplitudes) of local structures...

This article explores the influential factors leading to the failure of hot stamping molds and highlights the significance of mold maintenance. With the increasing production of electric vehicles and the adoption of lightweighting technologies, high-strength steel hot stamping forming has emerged as...

The article studies current trends of global digitalization of all spheres of society, including economic activities. The author analyzes and substantiates the significant contribution of space technologies and knowledge to the development of the world economy. Information obtained from the space helps...

Automobile lightening is a direct and effective measure to realize energy saving and emission reduction. TRB of boron steel has greater application value in automotive lightweight. In this work, the TRB scheme of a down plate of rear stringer with thickness of 1.8 mm, 2.0 mm, 1.6 mm and 1.4 mm was designed,...

The Republic of Sakha (Yakutia), compared with the other regions of our state, is currently considered to be poorly studied in terms of introducing innovative solutions for the spatial organization of the road network. Today's financial constraints and the geographical location of the Republic of Sakha...

With the promotion and application of high strength steel and hot stamping forming technology in automobile engineering, researchers gradually realize that in addition to improving the strength of automobile structural parts, the problem of matching the mechanical properties of parts and body safety...

The Omega parameter offers a novel approach to quantifying line pipe steels’ fracture resistance through a post-processing 3D scanning and slicing technique. Unlike traditional parameters such as the Crack Tip Opening Angle (CTOA), Omega reduces testing costs and subjectivity and remains unaffected by...

This article discusses the concepts of environmental management, analyzing the processes of extraction, pricing and the use of limited natural resources, as well as the role that limited natural resources play in the economic development of society. The formation and development of systems in each region...

Due to the advantages of high efficiency, low energy consumption and wide applicability, die punching has been widely used in the shearing process of automotive parts. However, it is seldom used on ultra-high strength steel due to the high punching force and risk of tool wear. In this paper, study of...

The hydrogen embrittlement (HE) of ultra-high-strength boron steel with different prior austenite grain (PAG) sizes was investigated. By adjusting soaking times and austenitizing temperatures, samples with varying PAG sizes were obtained. The PAG size and dislocation density of the samples were measured...

The paper presents an environmental study of the air basin, soil cover and large water bodies (Terek and Sunzha) in the territory of the Chechen Republic that was conducted by the authors in 2017. The analysis showed that the ecological condition of the

In conventional Ayurvedic product production, quality control is a perennial issue because batch processing is manual and raw material show inherent variability. The current research offers a semi-automated system combining non-contact infrared temperature measurement and RGB camera image analysis to...

The continuous changes of the hot stamping industries demands lead to challenges in the material selection of produced parts and therefore also in the selection of proper tool steels. Improvement of complex lightweight constructions of sheet material puts high demands on the materials themselves and...

Due to the introduction of hydrogen, there is a serious hydrogen embrittlement problem, which will make the material embrittlement and affect the service life and safety of steel. Therefore, the effect of adding Ti-Mo on the hydrogen embrittlement susceptibility of medium Mn steel was studied in this...

The paper provides the systematic analysis on highland Alpine rocky-scree vegetation of the Central and Eastern Caucasus. In taxonomy the vegetation under consideration is characterized with domination of dicotyledonous, specific family-species spectrum (Caryophyllaceae-species and Fabaceae-subspecies),...

This paper presents a new developed hot stamping die steel with long service life. According to high thermal conductivity and high wear resistance required by hot stamping, the composition and content of alloy elements are scientifically designed by analyzing the influence of each alloy element on the...

Species of plants, forming upper-alpine rock-scree vegetation of Central and Eastern Caucasus, have different habitats, in most cases exceeding the limits of the studied area. Analysing these habitats enables to discover the chorological nature of the researched flora, determine dominating geoelements,...

In this study, the effect of hydrogen charging treatment on the extreme tip bending performance of ultra-high strength automotive steel plates was investigated. After electrochemical hydrogenation, the extreme tip bending angle of the steel plate decreased to varying degrees, and the downward trend began...

Pipelines are the cost-effective and efficient modes of transportation accessible today. Several accidents have been reported due to the collapse of aging pipelines, which require frequent inspection. Manual inspection of vertical and curved pipes is nearly impossible; therefore, an advanced mechanism...

This article provides examples of the use of geographic information systems in the Republic of Sakha (Yakutia). The results of the creation of a GIS - project with ethnological expertise of the territories of traditional environmental management of indigenous peoples of the North are presented. Created...

It is easier to realize the “one-mold multi-cavity” forming process for large-scale parts or parts with similar dimensions, and the blank size is similar to facilitate the transport of the manipulator. Since the mold positioning space is sufficient, stable positioning can be obtained with a simple method...

The life form, or a plant habitus as a set of adaptive features reflecting the impact of environmental factors is one of the important indicators of environmental habitat conditions. The study of urban floras identifies directions, dynamics and nature of the anthropogenic transformation of phytobiota...

This article investigates the effect of niobium-vanadium composite microalloying on the strength and toughness of hot press forming steel. The mechanical properties, laminated impact property, ultimate tip cold bending property, and high-speed tensile property of traditional 22MnB5 and niobium-vanadium...

With the increase of hot stamping parts of various varieties and small batches, especially before the development and large-scale production of new energy vehicles, the production line is required to be more suitable for small and medium batches and various materials, which intensifies the hot stamping...

The paper deals with the issues of constructing the distribution of pore throats by size for productive strata of Western Siberia at a known value of the coefficient of absolute permeability. It is shown that for this purpose it is possible to use the Brooks- Corey model, which allows approximating the...

The use of high-performance sheet metal hot stamping and strengthening technology to produce body structures for passenger cars can reduce body weight, improve safety, and contribute to reducing carbon dioxide emissions, and is widely used. China's current hot stamping production capacity is close...

The microstructure and mechanical properties of vanadium micro-alloyed Al-bearing medium-Mn steel were studied by SEM, TEM and EBSD technique. The results show that the microstructure of the steel after intercritical annealing from 710℃ to 770℃ was composed of banded δ-ferrite(δ-F), α- ferrite(F) and...

The paper studies the properties of mineral powder, asphalt binders and structural and mechanical properties of asphalt concrete. Asphalt concrete with ground granulated slag as a mineral powder has high heat, water and frost resistance. The use of mineral powders can reduce the consumption of the binder...

Marine robotics refers to the class of autonomous and unmanned marine vehicles operating with minimal human intervention. The marine aquatic environment consists of uncertainties and disturbances that affect the operational efficiency of marine robotic vehicles. Remotely operated underwater vehicles...

To improve the lightweight level of automotive body and solve the internal hot stamping challenges on tailor-welded door ring such as cracking, wrinkling and local distortion, a finite element model of integral hot stamping of a tailor-welded door ring with differential strength and thickness was built....

As a result of theoretical research of experimental data a polymer highly-filled composite CDC (composite durable cement ) with the gradient of physico-mechanical and antifriction properties changing in depth which together with high strength and durability has an impact resistant viscous core. It...

There is the study outcome of the stress-strain state of single-layer and double-layer reinforced concrete elements with simple bending in the article. The data obtained in numerical experiments on finite element schemes perfectly matches the field tests results.

In response to the severe cracking and wrinkling of the reinforcement part of front side rail, this research designs a replacement solution of high-strength plastic accumulation material (QP1180) and verifies its feasibility through structural optimization, process analysis, mold debugging, and extensive...

Under condition of infill construction pile driving causes an appreciable impact on adjacent buildings, which should be accounted during the works. The work is the first to present the materials obtained in 1990s. The ground was represented by soft and plastic clay with the thickness from 4.5 to 13.0...

This article investigates the effect of niobium-vanadium composite microalloying on the performance of hot press forming B-pillars. Three-point bending experiments and trolley collision performance experiments on B-pillars were conducted. The results showed that during the three-point bending experiment...

Road transport in India faces significant challenges with hazardous materials (hazmat) transportation, particularly in densely populated urban areas like Kochi, Kerala. This study addresses the critical need for establishing safety and survival margins during potential chemical transportation accidents....

The flow distribution of the cooling channel in the hot stamping mold will directly affect the quality of the formed parts in a mold multi-cavity mold. In the actual hot stamping production, the production workers need to monitor the flow of each inlet in real time, but it is often difficult to determine...

The article is devoted to the use of modifying additives into the concrete mix during the construction of multi-storey buildings. Additives accelerating concrete hardening allow it to quickly build upper floors, but increase the cost of concrete mixes. Thus, reduction of the holding time will not be...

For promoting the commercial application of third-generation advanced high-strength steels in the automotive industry, the enhancement of the mechanical properties and formability of medium-Mn steel is becoming a research hotspot. Use of self-developed hot-forming steel, the microstructure evolution...

The existing computational model to determine the strength of inclined sections of bending reinforced concrete elements, adopted in the regulatory documents of the Russian Federation, due to the complex stress-deformed state has significant differences with the actual nature of structure work and requires...

Press hardening steel (PHS) is widely used in the production of automotive components. However, the traditional 22MnB5 steel, during the heating and hot stamping process, tends to develop a substantial amount of loose and easily detachable oxide scale on the surface, negatively impacting the lifespan...

Chemical Looping Combustion (CLC) is a next-generation combustion technology that offers inherent CO2 capture and high thermal efficiency. Despite its advantages, the risk of dust explosions caused by the mechanical degradation of oxygen carriers presents a major challenge in industrial-scale applications....

To date carbonate technology for producing Portland cement is the only, and the resulting product is a leader in the production of binders and, according to Russian and foreign scientists, this situation does not change even for many decades. But most researchers hope that a more effective binder with...

The paper presents the results of determining the degree of hydraulic activity of manufactured mineral filler (concrete broken material, demolition of buildings and structures, ceramic brick fights, ash and slag waste from thermal power stations (TPS), substandard raw materials mixed with cement used...

15-5PH samples were prepared using the laser cladding-rollinging compaction hybrid forming process, and the impact mechanism of rolling force on the microstructure and properties of the samples during the composite forming process was systematically studied. The results indicate that under the laser...

With the tightening of energy consumption and emission regulations, automotive lightweight is more and more imperative. Herein, A-pillar upper reinforcement using 1700 MPa ultra-high strength steel (UHSS) 3D roll bending was firstly designed and applied to carbon fiber reinforced plastics (CFRP) side...

The paper presents the results proving the possibility of using the super-plasticizer of the type "Linamix PC" in highly mobile and cast concrete mixes for the production of high-strength concrete. The paper gives results of raw materials tests for the preparation of monolithic compositions of high-strength...

Safety barriers are essential for ensuring the safe operation of chemical plants. A strong understanding of relevant literature and concepts is crucial for their effective design and management. Hazard Identification (HAZID) serves as an initial step in risk assessment by identifying potential hazards....

The paper presents the results of studies the role of modern chemical, mineral and micro-reinforcing additives in the process of structure formation of high-strength concrete. The paper reveals the features of the structure formation of cement stone in the presence of a superplasticizer. The paper experimentally...

Automotive parts for lightweight requirements continue to rise, modern body lightweight materials are moving toward the trend of multiple materials composite use. Carbon fiber/hot stamped metal composite panels with lightweight and high strength, excellent corrosion resistance, fatigue resistance and...

The paper presents the results of studies of monolithic concrete mixes and concretes obtained with the integrated use of local natural and manufactured raw materials, including concrete broken materials and crushed bricks. Formulations of filled binders based on finely ground mineral filler from manufactured...

In this article, the design of the 22.5 × 9.00 hot-stamped lightweight wheel was optimized based on finite element analysis of stiffness. To improve the bending and radial stiffness of the wheel, under the condition to meet the requirements of bending and radial loading stress, the finite element stiffness...

With the booming development of new energy vehicles, integrated die casting has become an important means of automotive parts manufacturing, and there is an urgent need for age-free heat-treated aluminium alloys in the industry. Therefore, a new ageing-free heat-treated aluminium alloy was developed...

Deep learning algorithm YOLOv8 is used for monitoring compliance with Personal Protective Equipment (PPE) requirements in a large shipyard. The system aims to check for mandatory PPEs in dangerous tasks such as welding, handling chemicals, electrical maintenance, confined space work, and working at heights....

The article presents an analysis of the experience of using the products of buildings and structures demolition, the technology of recycling secondary raw materials to produce secondary raw materials for concrete. The results of tests of heavy high-strength concrete (HSC) on the base of filled binders...

The configuration of the 22.5 × 9.00 hot-stamped lightweight wheel was optimized based on finite element stress analysis in this article. To reach the goal of reducing working stress and meeting the experimental requirements along with the experimental enhancement coefficient, under the optimized condition...

The evolution of automobiles necessitates a balance between weight reduction and enhanced safety. Leveraging the hot stamping technique for manufacturing aluminum alloy and carbon fiber-reinforced polymer (CFRP) composites laminate offers significant potential in the automotive sector due to their advantageous...

The work is devoted to the study of the parameter influence on the relative position tower crane and the panel warehouse on the construction site. Due to the nonlinearity and trigonometricity of the equations obtained, they are solved numerically using a specially compiled computer program. The goal...

A hydrometallurgical technology has been proposed for processing the refractory part of the lining of aluminum production electrolysers dismantled and disabled for overhaul. Fluorine-containing compounds are transferred to the solution, which allows obtaining cryolite for being used in the electrolysis...

As a potential third-generation high-strength steel, the medium manganese steel has broad application prospects. Hot stamping technology can effectively solve the problems of large springback and large forming resistance in the cold stamping process of medium manganese steel. However, the hot stamped...

Aluminum alloy hot stamping is an important means to achieve automobile lightweight, and the friction and wear caused by aluminum alloy adhesion in the production process is an inevitable problem. Lubrication can reduce friction and wear, but there is no special lubricant for aluminum alloy hot stamping,...

An accidental release of hazardous chemicals may occur in process industries during production, storage, or transportation. Consequence assessment estimates the potential impacts of such releases, determining threat zones and their adverse effects on humans and the environment. It serves as a crucial...

The article justifies the need to take into account the structural strength of soils in the calculations of the base foundations yielding, as well as limiting the depth of the compressible thickness of the base by the value of the structural soil strength. The concept of the depth of the compressible...

The mechanical properties of medium manganese steels with TRIP effect, which are typical of third generation automotive steels due to their high strength and plasticity are heavily dependent on their microstructure. Therefore, realistic microstructure based computational modeling of the mechanical behavior...

During burning of Portland cement clinker, a large amount of both clinker and aspiration dust accumulates in electrostatic precipitators and rotary kilns; therefore, rational use of these products containing a certain portion of a complete raw material is an important task in the cement industry. It...

Hot stamping technology is an effective way to achieve lightweight vehicles using aluminum alloy. Aluminum alloy is increasingly used in automobile manufacturing due to its high specific strength and recyclability. However, severe high-temperature friction and wear during the hot stamping forming process...

The influence of carbon dioxide on swelling, size of particles, intensity of sedimentation, jellification time, pH value, chemical composition of sediments from suspensions is studied bentonites of two types NaM and CaM in the field of the Chechen Republic for. It is shown that carbon dioxide is well...

Infrared temperature measurement technology is widely used in the detection of surface temperature distribution of hot stamping parts. However, the accurate infrared temperature measurement for complex parts is still a problem due to the deviation of emissivity. In this study, a novel directional emissivity...

This paper presents the data of changes in the coefficient of thermal expansion of composite reinforcement and heavy concrete in a wide temperature range. Studies allow not only to justify the high stability of the BPA in terms of thermal expansion, but also to assess the subtle effects of measured parameters...