摘要
系统研究了添加0.5%铜及贝氏体恒温处理工艺参数对0.2C-1.5Mn-1.5SiTRIP钢板组织及性能的影响规律。结果表明,在450℃×3min常规贝氏体恒温处理工艺条件下,在TRIP钢中加入0.5%铜可以明显提高其残留奥氏体量和抗拉强度,但使总伸长率降低;随着贝氏体化时间的增加,TRIP钢板中贝氏体含量增加,而处于亚稳态的残留奥氏体明显减少。
Effects of 0. 5 % copper addition and austempering parameters on mechanical properties and microstructures of cold-rolled 0. 2C-1.5Mn-1.5Si TRIP steel sheets were investigated. As a result, as 0. 5% copper was added into 0. 2C- 1.5Mn-1.5Si TRIP steel and both TRIP steels were annealed and conventionally austempered at 450 ℃ for 3 min, the bainite content and tensile strength were improved while total elongation value decreased. With the increase of austempering time, volume fraction of retained austenite in steels obviously decreased while bainite content increased.
出处
《金属热处理》
CAS
CSCD
北大核心
2006年第11期38-41,共4页
Heat Treatment of Metals
基金
教育部留学回国人员科研启动基金资助项目
韩国政府KISTEP资助项目.
关键词
TRIP钢
铜
残留奥氏体
贝氏体
组织与性能
TRIP steel
copper
retained austenite
bainite
microstructure and mechanical properties
