Mechanical properties and microstructure of 12Kh18N10T steel obtained by selective laser melting

Abstract

Stainless 12Kh18N10Т steel powder with dispersion of 25...68 µm and experimental samples obtained on its basis by selective laser melting (SLP) are studied. The microstructure of the samples is characterized by continuity, absence of pores and cracks and was a solid solution of austenite. The microhardness of samples obtained from the powder by the SLP method is higher than that of a standard compact alloy, the time resistance and elongation are 665 MPa and 53 % respectively. The surface of the fractures of the samples is characterized by a pronounced viscous type.