Wire arc additive manufacturing of stainless steels

Additive manufacturing is playing vital role in manufacturing sector due to its potential to reduce carbon footprints and promote sustainable development. Among the numerous methodologies within additive manufacturing, the wire arc additive manufacturing (WAAM) process emerges as a versatile technique with the potential to fundamentally transform the landscape of metal 3D printing. It enables the fabrication of intricate, cost-effective, and high-quality metal components with applications in aerospace, automobile, and other industrial sectors. WAAM shows significant potential in manufacturing large metal structures efficiently, offering both rapid deposition rates and cost-effectiveness. Stainless steels are commonly used in this process due to their favorable mechanical properties and corrosion resistance. This chapter provides an overview of WAAM of Stainless steels, focusing on macrostructure, microstructure, tensile behavior and, corrosion behavior.