Effect of cold rolling deformation on microstructure and properties of CrCoNi alloy

doi:10.13251/j.issn.0254-6051.2022.05.034

Abstract

Abstract: Phase composition, microstructure, mechanical properties and corrosion resistance of the as-cast and cold rolled CrCoNi alloys after magnetic suspension melting were studied at room temperature with deformation of 50%. The results show that, before and after cold rolling, there is no phase change of the as-cast CrCoNi alloy, still being the FCC single phase structure. The distribution of as-cast microstructure is uneven. After rolling deformation, the grains are broken and elongated. With the increase of deformation pass, the strength of the alloy increases, while the plastic decreases. Meanwhile compared with the as-cast alloy, after rolling, the corrosion resistance of the CrCoNi alloy is improved, and both are better than that of the 304 stainless steel.

Key words: CrCoNi alloy, cold rolling deformation, microstructure, corrosion resistance

CLC Number:

TG337

Chen Jinliang, Feng Zhongxue, Zhang Limin , Yi Jianhong. Effect of cold rolling deformation on microstructure and properties of CrCoNi alloy[J]. Heat Treatment of Metals, 2022, 47(5): 204-207.

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