Microstructure and properties investigations of Fe–Cr–Ni stainless steel obtained by selective laser melting

Bogachev I.A., Sulyanova E.A., Sukhov D.I., Mazalov P.B.
UDC
669.14.018.8
DOI
10.18577/2307-6046-2019-0-3-3-13
Article PDF (Russian) (1.12 MB)
How to cite
Bogachev I.A., Sulyanova E.A., Sukhov D.I., Mazalov P.B. Microstructure and properties investigations of Fe–Cr–Ni stainless steel obtained by selective laser melting // Proceedings of VIAM. 2019. No. 3. DOI: 10.18577/2307-6046-2019-0-3-3-13. URL: https://test.viam.ru/en/journal/2019/3/1
Keywords
stainless steel, microstructure, mechanical properties anisotropy, selective laser melting, heat treatment, recrystallization.
Abstract

Microstructure investigations of Fe–Cr–Ni stainless steel’s sintered samples obtained by selective laser melting were held. Mechanical properties and corrosion resistance of the samples at the initial state and after treatment were estimate. It is shown that material’s structure consists of fine grain sells oriented along the crystallization direction. After hot isostatic pressing and heat treatment microstructure becomes more homogeneous and takes the form of identical one of the casting material. Anisotropy of the mechanical properties intrinsic to the sintered state is not observed.

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