Stability of reversed austenite in 9%Ni steel after heat treatment

doi:10.13251/j.issn.0254-6051.2023.02.036

Abstract

Abstract: Stability of reversed austenite in the 9%Ni steel after heat treatment and cryogenic treatment was studied by means of SEM, TEM, XRD and microhardness tester. The results show that the transformation of unstable reversed austenite is basically completed when the cryogenic temperature is -120 ℃, and the content of reversed austenite changes a little tempered at 520 ℃ after the cryogenic treatment. It is extremely necessary to carry out the cryogenic treatment for the 9%Ni steel.

Key words: 9%Ni steel, heat treatment, cryogenic treatment, reversed austenite

CLC Number:

TG161

Chen Rui, Bao Cuimin, Yang Zhipeng, Lin Lin. Stability of reversed austenite in 9%Ni steel after heat treatment[J]. Heat Treatment of Metals, 2023, 48(2): 228-231.

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