金属热处理 ›› 2022, Vol. 47 ›› Issue (2): 59-64.DOI: 10.13251/j.issn.0254-6051.2022.02.011

• 材料研究 • 上一篇    下一篇

热变形对含铌奥氏体不锈钢07Cr18Ni11Nb再结晶行为的影响

舒玮1,3, 宋丽强2, 张威3   

  1. 1.太原钢铁(集团)有限公司 先进不锈钢材料国家重点实验室, 山西 太原 030003;
    2.太原钢铁(集团)有限公司 规划发展部, 山西 太原 030003;
    3.山西太钢不锈钢股份有限公司 技术中心, 山西 太原 030003
  • 收稿日期:2021-10-10 修回日期:2021-12-06 出版日期:2022-02-25 发布日期:2022-04-01
  • 作者简介:舒 玮(1982—),男,高级工程师,博士,主要研究方向为镍基合金及新能源领域用特种不锈钢材料,E-mail:Shuwei@tisco.com.cn
  • 基金资助:
    山西省重点研发计划(201903D121090)

Effect of hot deformation on recrystallization behavior of niobium-bearing austenitic stainless steel 07Cr18Ni11Nb

Shu Wei1,3, Song Liqiang2, Zhang Wei3   

  1. 1. State Key Laboratory of Advanced Stainless Steels, Taiyuan Iron & Steel Co., Ltd., Taiyuan Shanxi 030003, China;
    2. Planning and Development Division, Taiyuan Iron & Steel Co., Ltd., Taiyuan Shanxi 030003, China;
    3. Technology Center, Shanxi Taiyuan Stainless Steel Co., Ltd., Taiyuan Shanxi 030003, China
  • Received:2021-10-10 Revised:2021-12-06 Online:2022-02-25 Published:2022-04-01

摘要: 采用热模拟压缩及中试热轧的试验方法,研究了热变形对含铌奥氏体不锈钢07Cr18Ni11Nb再结晶行为的影响。结果表明:热压缩变形时,试验钢再结晶程度随变形温度、变形量的升高以及变形后保温时间的延长逐渐增大;变形温度越高、变形量越大,发生再结晶所需的保温时间越短;保温时间越长,再结晶晶粒长大越明显;轧制变形时,热轧板1/4厚度处更容易发生再结晶,随着轧制温度和变形量的升高,1050 ℃轧制变形25%时可在全厚度获得完全再结晶组织。

关键词: 热变形, 07Cr18Ni11Nb含铌奥氏体不锈钢, 再结晶

Abstract: Effect of hot deformation on recrystallization behavior of niobium-bearing austenitic stainless steel 07Cr18Ni11Nb was investigated by thermal simulated compression test and pilot hot rolling test. The results show that the recrystallization degree of the steel increases with the increase of deformation temperature, deformation amount and holding time. When the deformation temperature and deformation amount are higher, the holding time required for recrystallization is shorter. The longer the holding time, the more obvious the growth of recrystallized grains. During rolling deformation, recrystallization is easier to occur at the quarter thickness of hot-rolled plate. With the increase of rolling temperature and deformation amount, fully recrystallized grains can be obtained at 1050 ℃ with rolling deformation of 25%.

Key words: hot deformation, 07Cr18Ni11Nb niobium-bearing austenitic stainless steel, recrystallization

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