铸造技术2016，Vol.37Issue(8)：1615-1617,3.DOI:10.16410/j.issn1000-8365.2016.08.018
退火温度对DP440钢组织转变及静态转变曲线的影响
Effect of Annealing Temperature on Microstructure and Static Transformation Curve of DP440 Steel
钟韬1
作者信息
- 1. 四川交通职业技术学院,四川成都610036
- 折叠
摘要
Abstract
The effect of different annealing temperatures on microstmcture and static transformation curve of DP440 automobile steel during cooling was studied by thermal expansion experiment and microstructure observation.The results show that the content of austenite increases with the increase of annealing temperature,whereas the content of ferrite decreases.With the increase of cooling rate,the ferrite,bainite and martensite transformation occur sequentially from the austenite.With the increase of annealing temperature,the transformation from austenite to ferrite become late.The martensite starting temperature rises with the increase of cooling rate.The lath martensite become thicker as the annealing temperature increases.关键词
DP440钢/退火温度/组织转变/静态曲线Key words
DP440 steel/annealing temperature/microstructure transformation/static curve分类
矿业与冶金引用本文复制引用
钟韬..退火温度对DP440钢组织转变及静态转变曲线的影响[J].铸造技术,2016,37(8):1615-1617,3.
