Fabrication of Stainless-Steel Alloy Using Wire Arc Additive Manufacturing

DOI

10.2991/978-94-6239-813-9_12How to use a DOI?

Keywords

WAAM; stainless steel; shielding gas mixtures; mechanical characteristics

Abstract

Wire Arc Additive Manufacturing (WAAM) is an efficient process for producing large metallic parts with high deposition rates and less cost. This study investigates the influence of different shielding gas mixtures (SG-1: 100%Ar, SG-2: 95%Ar+5%CO₂, SG-3: 90%Ar+10%CO₂, and SG-4: 80%Ar+20%CO₂) on CMT-WAAM fabricated 316L stainless steel. The microstructure exhibited columnar dendritic grains with epitaxial growth. Microhardness values ranged from 185 HV–220 HV, the horizontal specimens showed higher tensile strength than vertical specimens and indicating anisotropy properties. The SG-3 produced superior mechanical properties and a finer grain structure, demonstrating its suitability for advanced engineering applications.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - P. S. Gowthaman
AU  - J. Gowthaman
PY  - 2026
DA  - 2026/10/29
TI  - Fabrication of Stainless-Steel Alloy Using Wire Arc Additive Manufacturing
BT  - Proceedings of the  Global Symposium on Adaptive Manufacturing (GSAM 2026)
PB  - Atlantis Press
SP  - 34
EP  - 36
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-813-9_12
DO  - 10.2991/978-94-6239-813-9_12
ID  - Gowthaman2026
ER  -