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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Wire Arc Additive Manufacturing of Layered HSLA–Stainless Steel Composite Structures for Enhanced Strength–Ductility Performance
Author(s) Stibitz Christin, Bishal Silwal, Abdullah All Sayeed
On-Site Speaker (Planned) Stibitz Christin
Abstract Scope Wire Arc Additive Manufacturing (WAAM) was utilized to fabricate a layered steel composite consisting of three layers of LA-100 high-strength low-alloy (HSLA) steel followed by one layer of 316L stainless steel to investigate the combined strength–ductility behavior of dissimilar steel systems. A wall structure with dimensions of approximately 206 mm × 15 mm × 150 mm was successfully deposited under controlled processing conditions to achieve sound metallurgical bonding and minimize interfacial defects. Tensile specimens extracted in both horizontal and vertical orientations were tested to evaluate anisotropic mechanical behavior, including yield strength, ultimate tensile strength, and elongation. Microstructural characterization and hardness mapping were performed to analyze grain morphology, interfacial diffusion, and phase evolution across the layered regions. The investigation established a foundation for understanding and provided insight into the mechanical behavior and interfacial characteristics of layered multi-material WAAM steel structures.
Proceedings Inclusion? Undecided

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