金属热处理 ›› 2021, Vol. 46 ›› Issue (1): 200-203.DOI: 10.13251/j.issn.0254-6051.2021.01.036

• 组织与性能 • 上一篇    下一篇

终轧温度对443铁素体不锈钢组织、织构及成形性能的影响

任娟红, 陈安忠, 王长波, 钱张信, 高仁强   

  1. 酒钢集团 钢铁研究院,甘肃 嘉峪关 735100
  • 收稿日期:2020-06-25 出版日期:2021-01-25 发布日期:2021-01-26
  • 通讯作者: 陈安忠,工程师,硕士,E-mail:chenanzhong@jiugang.com
  • 作者简介:任娟红(1986—),女,工程师,硕士,主要研究方向为不锈钢产品研究与开发,E-mail:renjuanhong@jiugang.com。
  • 基金资助:
    嘉峪关市科技支撑计划(16-02)

Effect of finishing rolling temperature on microstructure, texture and formability of ferritic stainless steel 443

Ren Juanhong, Chen Anzhong, Wang Changbo, Qian Zhangxin, Gao Renqiang   

  1. Research Institute,JISCO,Jiayuguan Gansu 735100,China
  • Received:2020-06-25 Online:2021-01-25 Published:2021-01-26

摘要: 通过光学显微镜、EBSD等分析技术,研究了终轧温度对443超纯铁素体不锈钢显微组织、织构、成形性能及抗表面起皱性能的影响规律。结果表明,降低终轧温度有利于促进443钢热轧退火态及冷轧退火态的再结晶,并使冷轧退火态组织更为细小均匀;降低终轧温度可有效强化冷轧退火态的γ纤维织构,是提高r值和杯突值、改善冷轧退火板成形性能、抗表面起皱性能的有效方式。

关键词: 铁素体不锈钢, 显微组织, 织构, 成型性, 抗表面起皱性能

Abstract: Effect of finishing rolling temperature on microstructure,texture,formability and surface ridging resistance of ultra-purified ferritic stainless steel 443 was investigated by means of optical microscope,EBSD and other analysis technologies.The results show that lowering the finishing rolling temperature promotes recrystallization of both hot rolled and annealed steel sheets,and makes the microstructure of final cold rolled-annealed sheet refined and homogenized.The γ-fiber texture in cold rolled-annealed state can be strengthened effectively by reducing the final rolling temperature,which is an effective way to improve the r value,cupping value,formability and surface ridging resistance.

Key words: ultra-purified ferritic stainless steel, microstructure, texture, formability, surface ridging resistance

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