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 ›› 2005, Vol. 26 ›› Issue (2): 20-22.

• 试验研究 • 上一篇    下一篇

退火温度对0.2C-1.5Si-1.5Mn-(0.5Cu)TRIP 钢组织的影响

景财年1,王作成2,李长龙1, 罗 辉1,李成美1,刘一梅1   

  1. 1.山东建筑工程学院材料系,济南 250014 ;
    2.山东大学材料科学与工程学院,济南 250061;
  • 收稿日期:2004-10-11 出版日期:2005-04-01 发布日期:2023-05-26
  • 作者简介:景财年,男,31岁,讲师,博士研究生。主要从事新钢种的开发和研究工作。

Effect of Annealing Temperature on Structure of 0.2C-1.5Si-1.5Mn-(0.5Cu)TRIP Steel

Jing Cainian1,Wang Zuocheng2,Li Changlong1,Luo Hui1,Li Chengmei1,Liu Yimei1   

  1. 1.Department of Materials,Shandong Institute of Architecture and Engineering , Jinan 250014;
    2.School of Materials Science and Engineering,Shandong University , Jinan 250061;
  • Received:2004-10-11 Published:2005-04-01 Online:2023-05-26

摘要: 用彩色金相法、X 射线衍射、扫描电镜研究了成分(%)为 0.2C-1.5Si-1.5Mn和0.2C-1.5Si-1.5Mn-0.5Cu TRIP钢 750~780℃不同退火温度对组织的影响。结果表明,含0.5 %Cu TRIP钢750℃、760℃、780℃退火的残余奥氏体体积含量为15.2 %~17.2 % ,770℃退火为15.2 %~15.7% ;不含CuTRIP钢760℃和770℃退火的残余奥氏体体积含量分别为12.5 %~12.9%和14.6 %~15.1% ,低于750℃和780℃退火的奥氏体量分别为17.0 %~17.5%和16.0 %~16.4%。随退火温度由750℃提高至780℃ ,两种钢中的铁素体量由~70%降至~5 0% ,贝氏体量由~10%增至~30%

关键词: TRIP钢, 退火温度, 组织

Abstract: The effect of annealing temperature between 750 ℃ and 780 ℃ on structure of two TRIP steel - 0.2C-1.5Si- 1.5Mn and 0.2C-1.5Si-1.5Mn-0.5Cu has been studied by color metallograph method, X-ray diffraction and scanning electron micrograph. The test results showed that for the TRIP steel containing 0.5Cu,the retained austenite volume fraction was 16.2%~17.2% when annealed at 750 ℃,760 ℃ and 780 ℃ and it was 15.2%~15.7% when annealed at 770 ℃;and for free Cu TRIP steel,when annealed at 760 ℃ and 770 ℃,the retained austenite volume fraction was 12.5%~12.9% and 14.6%~15.1% respectively which lower than that fraction 17.0%~17.5% and 16.0%~16.4% when annealed at 750 ℃ and 780 ℃ respectively. With the annealing temperature increased from 750 ℃ to 780 ℃ the ferrite volume fraction in steel decreased from ~70% to ~50%,and the bainite volume fraction in steel increased from ~ 10% to ~30%.

Key words: TRIP Steel, Annealing Temperature, Structure