Cr22Ni13Mn5Mo2N奥氏体不锈钢的热轧工艺

doi:10.13251/j.issn.0254-6051.2020.02.016

金属热处理 ›› 2020, Vol. 45 ›› Issue (2): 81-86.DOI: 10.13251/j.issn.0254-6051.2020.02.016

Cr22Ni13Mn5Mo2N奥氏体不锈钢的热轧工艺

李兵兵^1,2, 陈海涛², 郎宇平², 陈清明¹

1. 昆明理工大学材料科学与工程学院, 云南昆明 650093;
2. 钢铁研究总院特殊钢研究所, 北京 100081

收稿日期:2019-09-11 出版日期:2020-02-25 发布日期:2020-04-03
通讯作者: 陈海涛,男,主要从事不锈钢及耐蚀合金研究,E-mail:chenhaitao@nercast.com
作者简介:李兵兵(1992—),女,硕士研究生,主要研究方向为超级奥氏体不锈钢的腐蚀,E-mail:361226819@qq.com。
基金资助:
国家重点研发计划(2016YFB0300202)

Hot rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel

Li Bingbing^1,2, Chen Haitao², Lang Yuping², Chen Qingming¹

1. School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming Yunnan 650093, China;
2. Institute for Special Steels, Central Iron and Steel Research Institute, Beijing 100081, China

Received:2019-09-11 Online:2020-02-25 Published:2020-04-03

摘要/Abstract

摘要：

运用Gleeble-3800热模拟试验机研究了00Cr22Ni13Mn5Mo2N奥氏体不锈钢在变形温度为1000～1200 ℃,变形量为50%、60%、70%,应变速率为0.05 s^-1条件下的热压缩变形行为,并观察分析变形后试样组织形貌和经1080 ℃固溶热处理后试样的组织形貌。观察试样固溶热处理前后的组织形貌得到在1000~1150 ℃下进行热压缩变形,随着变形量的增加,动态再结晶越完全;经过固溶热处理后,静态再结晶就越充分。但在1200 ℃时,温度过高,再结晶已完成并且晶粒发生长大。在变形量分别为50%、60%和70%时,随着变形温度的升高,再结晶越完全,经固溶热处理后,再结晶更完全。00Cr22Ni13Mn5Mo2N奥氏体不锈钢热轧最佳轧制温度为1100 ℃,压缩变形量为70%。

关键词: 奥氏体不锈钢, 热轧, 再结晶, 热压缩

Abstract:

Hot compression deformation behavior of 00Cr22Ni13Mn5Mo2N austenitic stainless steel was studied by using Gleeble-3800 thermal simulator at deformation temperature of 1000-1200 ℃, deformation of 50%, 60%, 70% and strain rate of 0.05 s^-1. The microstructure after deformation behavior and after solution heat treatment at 1080 ℃ was observed and analyzed. Observing the morphology of the structure before and after solution heat treatment obtains that performing thermal compression deformation at 1000-1150 ℃, the dynamic recrystallization is more complete as the deformation increasing, and after solution heat treatment, the static recrystallization is more complete. However, when the temperature is too high at 1200 ℃, the recrystallization has been completed and the grains grow. When the deformation is 50%, 60% and 70%, with the increase of the deformation temperatures, the recrystallization is more complete, and after solution heat treatment, the recrystallization becomes more complete. The optimum rolling temperature for hot rolling of 00Cr22Ni13Mn5Mo2N austenitic stainless steel is 1100 ℃ and the compression deformation is 70%.

Key words: austenite stainless steel, hot rolling, recrystallization, hot compression

中图分类号:

F407.4

李兵兵, 陈海涛, 郎宇平, 陈清明. Cr22Ni13Mn5Mo2N奥氏体不锈钢的热轧工艺[J]. 金属热处理, 2020, 45(2): 81-86.

Li Bingbing, Chen Haitao, Lang Yuping, Chen Qingming. Hot rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel[J]. HTM, 2020, 45(2): 81-86.

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Cr22Ni13Mn5Mo2N奥氏体不锈钢的热轧工艺

Hot rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel

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