| Effect of niobium and titanium on dynamic recrystallization behavior of low carbon steels | |
| Alternative Title | Effect of Niobium and Titanium on Dynamic Recrystallization Behavior of Low Carbon Steels |
| Ma Liqiang1; Liu Zhenyu2; Jiao Sihai3; Yuan Xiangqian2; Wu Di2 | |
| 2008 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Volume | 15Issue:3Pages:31-36 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | NB MICROALLOYED STEELS AUSTENITE GRAIN-SIZE C-MN STEELS LOW-ALLOY PRECIPITATION KINETICS STRAIN peak strain activation energy dynamic recrystallization |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:3316940 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/148949 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 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 |
| Recommended Citation 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. |
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