Mechanical Properties of Stainless Steel Components during Additive Manufacturing (SLM and WAAM)

The mechanical properties of 10Kh12N10Т and 08Kh18N9 stainless steel components in additive manufacturing are investigated. Selective laser melting (SLM) and wire arc additive manufacturing (WAAM) are considered. Components produced by selective laser melting are found to be stronger than those produced by wire arc additive manufacturing. Additional heat treatment reduces the strength but improves the plasticity, especially in wire arc additive manufacturing. The influence of structural porosity on the mechanical properties of the components is assessed.