ABSTRACT
Additive manufacturing (AM), well known as 3D printing, is an innovative manufacturing technique to produce complicated engineering components. The purpose of this chapter is to evaluate the better qualities of stainless steels that cannot be produced using traditional production processes. Laser powder bed fusion and directed energy deposition are most significant methods used for processing steels by additive manufacturing technique. The most common type of steel used is austenitic stainless steel. This steel is used in 3D printing because of superior property in preventing edge dislocation, indentation with low angle grain (cell) borders. It offers high strength and ductility. The interfacial properties result in excellent wear and fatigue properties, as well as resistance to hydrogen embrittlement that is comparable to wrought conditions. This steel’s highest corrosion resistance is improved due to its fast solidification, which reduces the formation of manganese sulphide inclusions. In terms of erosion–corrosion and intergranular corrosion, the behaviour of these steels under these conditions is still up for debate. Residual stresses, anisotropy, and pore formation are some of the current production challenges of stainless steel. Instead of using a standard procedure, an optimized heat treatment approach is needed for the additive created product.
