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 ›› 2010, Vol. 31 ›› Issue (5): 61-63.

• 组织和性能 • 上一篇    下一篇

二次硬化超高强度钢AF1410奥氏体晶粒长大行为

廉学魁1,厉勇1,刘宪民1,王春旭1,李建新2,严晓红2   

  1. 1. 钢铁研究总院结构材料研究所,北京 100081 ;
    2. 抚顺特殊钢股份有限公司,抚顺 113001;
  • 收稿日期:2010-04-07 出版日期:2010-10-01 发布日期:2022-11-12
  • 通讯作者: 刘宪民
  • 作者简介:廉学魁(1984-),男,硕士研究生,高强度钢的组织和性能。

Growth Behavior of Austenite Grain of Secondary Hardening Ultra-high Strength Steel AF1410

Lian Xuekui1 , Li Yong1 , Liu Xianmin1 , Wang Chunxu1 , Li Jianxin2 , Yan Xiaohong2   

  1. 1. Institute for Structure Materials, Central Iron and Steel Research Institute, Beijing 100081;
    2. Fushun Special Steel Co Ltd, Fushun 113001 ;
  • Received:2010-04-07 Published:2010-10-01 Online:2022-11-12
  • Contact: Liu Xianmin

摘要: 研究了二次硬化超高强度AF1410钢(%:0.165C、14.10Co、9.83Ni、1.92Cr、1.05Mo)在800~1200℃ 5~180 min加热的奥氏体晶粒长大行为。结果表明,AF1410钢奥氏体平均晶粒尺寸随加热温度的升高和保温时间延长而增大,加热温度超过1100℃后,奥氏体晶粒发生严重粗化;不同加热温度下,该钢的奥氏体平均晶粒尺寸与保温时间符合Beck关系;建立了AF1410钢的奥氏体晶粒长大数学模型,800~1200℃加热时,该钢奥氏体晶粒长大平均激活能为220.2 kJ/mol,其奥氏体平均晶粒尺寸与加热温度之间符合Arrhenius关系。

关键词: 二次硬化超高强度钢AF1410, 奥氏体, 晶粒长大

Abstract: The growth behavior of austenite grain of secondary hardening ultra-high strength steel AF1410 (% : 0.165C, 14.10Co, 9.83Ni, 1.92Cr, 1.05Mo) heating at 800 ~ 1200 °C for 5 - 180 min has been studied. Results show that with increasing heating temperature and holding time the average austenite grain size of steel AF1410 increases, and the austenite grains coarsen seriously at temperature more than 1100 ; at different heating temperature; the relation between average austenite grain size of steel and holding time corresponds to Beck equation ; the math model for austenite grain growth of steel AF1410 has been established, with heating at 800〜1200 °C the average activation energy for austenite grain growth of the steel is 220.2 kJ/mol, and the relation between its average austenite grain size and heating temperature conforms to Arrhenius-type equation.

Key words: Secondary Hardening Ultra-high Strength Steel AF1410, Austenite, Grain Growth