| 高强度冷轧TRIP钢的工艺改进及组织性能 |
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| 引用本文： | 米振莉,李志超,范东亮,王哲,李煜.高强度冷轧TRIP钢的工艺改进及组织性能[J].材料热处理学报,2011,32(10). |
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| 作者姓名： | 米振莉 李志超 范东亮 王哲 李煜 |
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| 作者单位： | 北京科技大学冶金工程研究院,北京,100083 |
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| 基金项目： | 北京市科委项目(D09030303780902) |
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| 摘 要： | 采用轧制结合Gleeble-3500热模拟试验机模拟连续退火,研究了以低温卷取和中间退火为主要特征的改进工艺对冷轧TRIP钢组织和力学性能的影响。结果表明,低温卷取有利组织细化,中间退火工艺在降低冷轧抗力的同时有利提高钢在最终退火后的残留奥氏体量。等温淬火温度不同时,贝氏体形态与残余奥氏体量均不同,在400～420℃时可获得较高体积分数的残余奥氏体。改进工艺配合适当热处理工艺参数（420℃×5 min）条件下,实验冷轧TRIP钢的抗拉强度达到1030 MPa,总伸长率保持20%,综合性能优良。
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| 关 键 词： | TRIP钢 工艺 贝氏体等温淬火 力学性能 |
Influnece of heat treatment on microstructure and properties of a high strength cold-rolled TRIP steel |
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| MI Zhen-li,LI Zhi-chao,FAN Dong-liang,WANG Zhe,LI Yu.Influnece of heat treatment on microstructure and properties of a high strength cold-rolled TRIP steel[J].Transactions of Materials and Heat Treatment,2011,32(10). |
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| Authors: | MI Zhen-li LI Zhi-chao FAN Dong-liang WANG Zhe LI Yu |
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| Affiliation: | MI Zhen-li,LI Zhi-chao,FAN Dong-liang,WANG Zhe,LI Yu(Engineering Research Institute,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | Simulation test of rolling and continuous annealing of a C-Mn-Si TRIP steel was carried out on a Gleeble-3500 thermal simulation tester.The effect of the process on microstructure and mechanical properties of the cold rolled TRIP steel was examined.The process was mainly characterized by coiling at lower temperature and intermediate annealing.The results show that coiling at low temperature is favourable to structure refinement and the intermediate annealing decreases the cold rolling resistance and enhance... |
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| Keywords: | TRIP steel process austempering mechanical property |
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