Effect of boron on the dynamic CCT curves and the microstructure of low carbon steel
The microstructure and dynamic CCT curves of low carbon steels with different boron contents at different cooling rate were obtained through multi-pass hot compression deformation on Gleeble-3800 thermal mechanical simulator.The effect of boron on the microstructure and the dynamic CCT curves of the test steels was analyzed.The results show that the steel with boron content 0.0009% has more stable transformation process than that without boron addition,and the formation of ferrite,pearlite and bainite can be restrained effectively by adding boron alloying element,which leads to the dynamic CCT curves shifted to the right; because of boron addition,bainite can be obtained under slower cooling rate (0.2℃/s) and the critical cooling rate to gain martensite is decreased,which improves the hardenability of the steel.
ZHAO Bao Chun
Anshan Iron and Steel Group Corporation
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-5
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）