| 钛含量对铌钛微合金化钢强度的影响 |
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| 引用本文： | 袁向前,马立强,刘振宇,焦四海,王国栋.钛含量对铌钛微合金化钢强度的影响[J].轧钢,2006,23(6):12-14. |
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| 作者姓名： | 袁向前 马立强 刘振宇 焦四海 王国栋 |
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| 作者单位： | 1. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,11004
2. 宝山钢铁股份有限公司研究院,上海,201900 |
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| 基金项目： | 国家自然科学基金;教育部"新世纪优秀人才资助计划"项目 |
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| 摘 要： | 通过试验，研究了钛含量变化对铌钛微合金化钢组织和力学性能的影响。结果表明，随着钛含量增加，铌钛微合金化钢中的贝氏休体积分数对钢材屈服强度的影响程度没有明显变化，而Hall-Petch关系斜率减小。同时，对铌钛微合金化钢的强度计算模型进行了修正。
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| 关 键 词： | 铌钛微合金化钢 屈服强度 模型 铁素体体积分数 |
| 文章编号： | 1003-9996(2006)06-0012-03 |
| 收稿时间： | 2006-06-29 |
| 修稿时间： | 2006-07-26 |
Effect of Ti Content on Strength of Nb-Ti Micro-alloyed Steels |
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| YUAN Xiang-qian,MA Li-qiang,LIU Zhen-yu,JIAO Si-hai,WANG Guo-dong.Effect of Ti Content on Strength of Nb-Ti Micro-alloyed Steels[J].Steel Rolling,2006,23(6):12-14. |
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| Authors: | YUAN Xiang-qian MA Li-qiang LIU Zhen-yu JIAO Si-hai WANG Guo-dong |
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| Affiliation: | 1. The State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110004, China; 2. Institute of Research and Development, Baosted Co., Shanghai 201900, China |
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| Abstract: | Microstructures and properties of Nb-Ti micro-alloyed steels with Ti content varying were researched through experiment. The results showed that with increasing Ti content, the effect of bainite fraction on yield strength is invariant, while the slope of Hall-Petch relationship decreases.Modelling of yield strength for Nb-Ti micro-alloyed steels has been modified, and the fact which brought the change in the slope of Hall-Petch relationship was discussed. |
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| Keywords: | Nb-Ti micro-aUoyed steel yield strength model ferrite volume fraction |
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