| 含铝TRIP1000钢的断裂机制 |
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| 引用本文： | 周磊,黄澍,符仁钰,张梅,李麟.含铝TRIP1000钢的断裂机制[J].钢铁研究学报,2011,23(5):29-33. |
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| 作者姓名： | 周磊 黄澍 符仁钰 张梅 李麟 |
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| 作者单位： | 上海大学材料科学与工程学院,上海,200072 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2010CB630802) |
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| 摘 要： | 通过在两相区温度和贝氏体区温度等温处理制备强度达1000MPa、伸长率为24.3%的含铝低硅TRIP 钢,采用扫描电镜进行原位拉伸试验和能谱分析,研究其断裂机制.结果表明,在拉应力作用下,铁素体内部位错沿滑移带运动到晶粒边界引起位错塞积产生应力集中,同时铁素体与周围硬质相之间的结合力相对较弱,由于应力的作用而萌生微孔....
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| 关 键 词： | TRIP1000 原位拉伸 断裂机制 |
Fracture Mechanism of TRIP1000 Steel Containing Aluminum |
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| ZHOU Lei,HUANG Shu,FU Ren-yu,ZHANG Mei,LI Lin.Fracture Mechanism of TRIP1000 Steel Containing Aluminum[J].Journal of Iron and Steel Research,2011,23(5):29-33. |
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| Authors: | ZHOU Lei HUANG Shu FU Ren-yu ZHANG Mei LI Lin |
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| Affiliation: | ZHOU Lei,HUANG Shu,FU Ren-yu,ZHANG Mei,LI Lin(Material Science and Engineering College,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Intercritical annealing and isothermal treatment in bainite region were carried out to obtain the strength 1 000 MPa and the elongation 23.4% TRIP steel with low silicon containing aluminum.The fracture mechanism of experimental steel after heat treatment were studied through in-situ tensile test and EDX.Experiments show that under tensile stress,the dislocations dislocation move along the slip bands to cause grain boundary dislocations block which caused by stress concentration,while micro-initiation holes... |
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| Keywords: | TRIP1000 in-situ tensile test fracture mechanism |
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