Structure and thermal stability of austenitic steel Fe-17%Cr-12%Ni-2%Mo-0.02%C synthesized by selective laser melting

The structural features of the Fe-17%Cr-12%NI-2%Mo-0.02%C alloy manufactured by selective laser melting (SLM) and the thermal stability of the formed structures are investigated. It is shown that crystallization cells form at SLM, the boundaries of which are volume plexes of dislocations, fixed by segregation of impurity atoms. The microhardness of such a structure is one and a half times higher than that of an alloy of the same composition in a standard hardened state. During annealing up to 800 °C, this cellular structure maintains stability while maintaining hardness indices. © Published under licence by IOP Publishing Ltd.

Authors
Bazaleeva K. 1 , Tsvetkova E.2
Conference proceedings
Publisher
Institute of Physics Publishing
Number of issue
1
Language
English
Status
Published
Number
012001
Volume
1686
Year
2020
Organizations
  • 1 Rudn University, Moscow, Russian Federation
  • 2 Bauman Moscow State Technical University, Moscow, Russian Federation
Keywords
Austenitic stainless steel; Lanthanum compounds; Melting; Molybdenum alloys; Thermodynamic stability; Cellular structure; Hardened state; Segregation of impurities; Selective laser melting (SLM); Structural feature; Selective laser melting
Share

Other records