ISSN：1003-8620

CN：42-1243/TF

主管：中信泰富特钢集团股份有限公司

主办：大冶特殊钢有限公司

特殊钢 ›› 2019, Vol. 40 ›› Issue (2): 63-66.

所属专题： 铁素体不锈钢

• 组织和性能 • 上一篇    下一篇

退火工艺对铁素体不锈钢SUS410L热轧钢板组织和性能的影响

李筱1,2,卫英慧1,3, 卫争艳2, 苏莹4   

  1. 1太原理工大学材料与工程学院，太原030024；
    2太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室，太原030003 ；
    3太原科技大学，太原030024 ；
    4山西太钢不锈钢股份有限公司冷轧厂，太原030003)
  • 收稿日期:2018-10-11 出版日期:2019-04-01 发布日期:2022-05-20
  • 作者简介:李筱(1ixiao981-)男，博士研究生(太原理工大学)，高级工程师,2004年西安建筑科技大学(本科)毕业，不锈钢研究和开发。

Effect of Anneal Process on Microstructure and Mechanical Properties of Hot Rolled Ferritic Stainless Steel SUS410L

Li Xiao1,2, Wei Yinghui1,3, Wei Zhengyan2 , Su Ying4   

  1. 1 School of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024；<br /> 2 State Key Laboratory of Advanced Stainless Steel Materials, Taiyuan Iron and Steel ( Group) Co Ltd, Taiyuan 030003 ； 3 Taiyuan University of Science and Technology,Taiyuan 030024；<br /> 4 Cold Rolling Mill, Shanxi Taigang Stainless Steel Co Ltd,Taiyuan 030003
  • Received:2018-10-11 Published:2019-04-01 Online:2022-05-20

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摘要： 研究了不同退火温度和保温时间对SUS410L热轧态钢板再结晶行为和力学性能的影响。试验结果表明,当保温温度为700℃时,保温480 min后SUS410L热轧钢板仍未完成再结晶。当保温温度为750℃和800℃时分别于120 min和30 min基本完成再结晶,晶粒在之后的保温时间里逐步长大。为避免退火过程中出现马氏体而降低材料的延伸率,退火温度≤800℃。材料的力学性能与热处理后的再结晶程度密切相关。当保温温度为750℃且保温时间为480 min时可获得最佳的综合机械性能:延伸率38%,HRB硬度值67,屈服强度236 MPa,抗拉强度441 MPa。

Abstract: Effect of annealing temperature and holding time on the recrystallization behaviour and mechanical properties of hot rolled stainless steel SUS410L was investigated. Results showed that the hot rolled plate SUS410L did not complete the recrystallization process when annealing temperature was 700 ℃ and holding time was 480 min. The recrystallizai- ton completion time for annealing temperatures of 750 ℃ and 800 ℃ were 120 min and 30 min respectively, grains gradually grew bigger after the completion of recrystallization. To avoid the formation of martensite which decreases the elongation of the material, annealing temperature should not be higher than 800 ℃. Mechanical properties of the material were closely correlated with the recrystallization level. Annealing temperature of 750 ℃ and holding time of 480 min led to the best comprehensive mechanical properties: elongation of 38% , HRB hardness of 67 , yield strength of 236 MPa and tensile strength of 441 MPa.

Key words: Ferritic Stainless Steel SUS410L, Hot Rolled, Recrystallization Annealing, Elongation, Microstructure ,

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