金属热处理 ›› 2020, Vol. 45 ›› Issue (6): 12-16.DOI: 10.13251/j.issn.0254-6051.2020.06.003

• 工艺研究 • 上一篇    下一篇

00Cr22Ni13Mn5Mo2N奥氏体不锈钢的精轧工艺

李兵兵1,3, 庄飚2, 陈海涛3, 郎宇平3, 屈华鹏3, 冯翰秋3, 陈清明1   

  1. 1. 昆明理工大学 材料科学与工程学院, 云南 昆明 650093;
    2. 中国人民解放军92942部队, 北京 100161;
    3. 钢铁研究总院 特殊钢研究所, 北京 100081
  • 收稿日期:2019-11-20 出版日期:2020-06-25 发布日期:2020-09-02
  • 通讯作者: 陈海涛,高级工程师,E-mail:chenhaitao@nercast.com
  • 作者简介:李兵兵(1992—),女,硕士研究生,E-mail:361226819@qq.com。
  • 基金资助:
    国家重点研发计划(2016YFB0300202)

Finishing rolling process of 00Cr22Ni13Mn5Mo2N austenitic stainless steel

Li Bingbing1,3, Zhuang Biao2, Chen Haitao3, Lang Yuping3, Qu Huapeng3, Feng Hanqiu3, Chen Qingming1   

  1. 1. Faculty Materials Science and Engineering, Kunming University of Science and Technology, Kunming Yunnan 650093, China;
    2. Chinese People's Liberation Army 92942, Beijing 100161, China;
    3. Institute for Special Steels, Central Iron and Steel Research Institute, Beijing 100081, China
  • Received:2019-11-20 Online:2020-06-25 Published:2020-09-02

摘要: 为了研究00Cr22Ni13Mn5Mo2N奥氏体不锈钢的精轧工艺,使用Gleeble-3800热模拟试验机模拟00Cr22Ni13Mn5Mo2N奥氏体不锈钢在变形温度为800、850、900、950 ℃,变形量为40%、50%、60%,应变速率为50 s-1条件下的热压缩变形行为,并对其进行1080、1120、1160 ℃的固溶热处理,观察固溶热处理前后的组织形貌。结果表明:在800~950 ℃热压缩温度下,随变形量增大,再结晶越完全,再结晶平均晶粒尺寸越细小;经固溶处理1 h后,静态再结晶就越充分。在40%~60%变形量下,随热压缩温度升高,再结晶越完全,再结晶平均晶粒尺寸越大。热压缩变形试验钢随固溶处理温度升高,再结晶平均晶粒尺寸越大。00Cr22Ni13Mn5Mo2N奥氏体不锈钢的精轧最佳轧制温度为800 ℃,压缩变形量为60%,固溶温度为1080 ℃。

关键词: 00Cr22Ni13Mn5Mo2N奥氏体不锈钢, 热压缩变形, 再结晶, 固溶处理

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

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