Finishing rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel

doi:10.13251/j.issn.0254-6051.2020.06.003

Abstract

Abstract: In order to study the finishing rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel, the hot compression deformation behavior of 00Cr22Ni13Mn5Mo2N austenitic stainless steel was simulated by a Gleeble-3800 thermal simulator, with the deformation temperatures 800, 850, 900 and 950 ℃, the deformation 40%, 50%, 60%, and the strain rate 50 s^-1. Then the structural morphology before and after the solid solution heat treatment at 1080, 1120 and 1160 ℃ was observed. The results show that the recrystallization is more complete and the average recrystallization grain size is smaller with the increase of deformation at 800-950 ℃. After solution treatment for 1 h, the static recrystallization becomes more sufficient. With the increase of thermal deformation temperature under the deformation of 40%-60%, the more complete the recrystallization is, the larger the average recrystallization grain size is. The average recrystallization grain size of the steel increases with the increase of solution treatment temperature. The optimum processing of 00Cr22Ni13Mn5Mo2N austenitic stainless steel is the finishing rolling temperature 800 ℃, the compression deformation 60%, and the solution treatment temperature 1080 ℃.

Key words: 00Cr22Ni13Mn5Mo2N austenitic stainless steel, hot compression deformation, recrystallization, solution treatment

CLC Number:

TG335

Li Bingbing, Zhuang Biao, Chen Haitao, Lang Yuping, Qu Huapeng, Feng Hanqiu, Chen Qingming. Finishing rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel[J]. Heat Treatment of Metals, 2020, 45(6): 12-16.

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