Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels

IMR OpenIR

	Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels
其他题名	Effect of Niobium and Titanium on Dynamic Recrystallization Behavior of Low Carbon Steels
	Ma Liqiang 1; Liu Zhenyu 2; Jiao Sihai 3; Yuan Xiangqian 2; Wu Di 2
	2008
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
卷号	15 期号:3 页码:31-36
摘要	Using a Gleeble 3800 thermo-mechanical simulator, the effect of niobium and titanium on the dynamic re-crystallization (DRX) behavior of low carbon steels was investigated. Isothermal single compression tests were performed in the temperature range of 850 to 1 150 degrees C at constant. strain rates of 0.1 to 5 s(-1). The experimental results showed that the addition of niobium and titanium to the low carbon steels significantly increased both the peak stress and steady state stress. The activation energy of deformation Q(d) was larger than the activation energy associated with the steady state stress Q(ss). Furthermore, the difference between Q(d) and Q(ss) became significant because of the addition of niobium and titanium. DRX is effectively retarded because of solute dragging and dynamic precipitate pinning of niobium and titanium, resulting in higher values of the peak strain and steady state strain. Finally, the influence of niobium and titanium on the DRX kinetics and steady state grain size was determined.
其他摘要	Using a Gleeble 3800 thermo-mechanical simulator, the effect of niobium and titanium on the dynamic recrystallization （DRX） behavior of low carbon steels was investigated. Isothermal single compression tests were performed in the temperature range of 850 to 1 150 ℃ at constant strain rates of 0.1 to 5 s-1. The experimental results showed that the addition of niobium and titanium to the low carbon steels significantly increased both the peak stress and steady state stress. The activation energy of deformation Qd was larger than the activation energy associated with the steady state stress Qss. Furthermore, the difference between Qd and Qss became significant because of the addition of niobium and titanium. DRX is effectively retarded because of solute dragging and dynamic precipitate pinning of niobium and titanium, resulting in higher values of the peak strain and steady state strain. Finally, the influence of niobium and titanium on the DRX kinetics and steady state grain size was determined.
关键词	NB MICROALLOYED STEELS AUSTENITE GRAIN-SIZE C-MN STEELS LOW-ALLOY PRECIPITATION KINETICS STRAIN peak strain activation energy dynamic recrystallization
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:3316940
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148949
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.东北大学 3.Baosteel Co, Institute Res & Dev, Shanghai 201900, Peoples R China
推荐引用方式 GB/T 7714	Ma Liqiang,Liu Zhenyu,Jiao Sihai,et al. Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2008,15(3):31-36.
APA	Ma Liqiang,Liu Zhenyu,Jiao Sihai,Yuan Xiangqian,&Wu Di.(2008).Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,15(3),31-36.
MLA	Ma Liqiang,et al."Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 15.3(2008):31-36.