| 水淬工艺对TWIP钢显微组织和力学性能的影响 |
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| 引用本文： | 李激光,丁亚杰,彭兴东,刘津伟.水淬工艺对TWIP钢显微组织和力学性能的影响[J].金属学报,2010(2). |
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| 作者姓名： | 李激光 丁亚杰 彭兴东 刘津伟 |
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| 作者单位： | 辽宁科技大学材料科学与工程学院;鞍钢工程事业部; |
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| 基金项目： | 辽宁省教育厅资助项目20060430~~ |
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| 摘 要： | 研究了一种用于汽车车体的高强、高塑性中C-高Mn系孪晶诱发塑性(TWIP)钢,有助于达到汽车减排、节能和安全的目的。通过单向拉伸实验和OM观察,分析研究了水淬工艺对TWIP钢的力学性能和微观组织的影响规律,采用SEM和TEM对不同变形程度TWIP钢的精细结构进行了分析。结果表明,随着水淬温度的提高,退火孪晶体积分数和晶粒尺寸增大,塑性、加工硬化性提高,而试件的强度和屈强比降低,可以获得抗拉强度960 MPa,延伸率60.5%,具有优异的综合力学性能(强塑积最高达6.096×10~4 MPa%)的试件;具有大量退火孪晶的奥氏体在变形过程中产生大量的形变孪晶,提高了TWIP钢的强度和塑性。
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| 关 键 词： | TWIP钢 水淬 形变孪晶 显微组织 力学性能 |
EFFECTS OF WATER QUENCHING PROCESS ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TWIP STEEL |
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| LI Jiguang,DING Yajie,PENG Xingdong School of Materials Science , Engineering,University of Science , Technology Liaoning,Anshan LIU Jinwei.EFFECTS OF WATER QUENCHING PROCESS ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TWIP STEEL[J].Acta Metallurgica Sinica,2010(2). |
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| Authors: | LI Jiguang DING Yajie PENG Xingdong School of Materials Science Engineering University of Science Technology Liaoning Anshan LIU Jinwei |
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| Affiliation: | LI Jiguang,DING Yajie,PENG Xingdong School of Materials Science , Engineering,University of Science , Technology Liaoning,Anshan 114051 LIU Jinwei Department of Engineering,Anshan Iron , Steel Company,Anshan 114021 |
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| Abstract: | In order to reduce greenhouse gas emissions,improve fuel economy and enhance safety of automobiles,a new high strength and high plasticity twinning induced plasticity(TWIP) steel containing medium carbon and high manganese has been developed.The effects of water quenching process on the microstructures of such TWIP steels and deformed ones were observed by OM,SEM and TEM,and effects on the mechanical properties were investigated by unidirectional tensile.The experimental results show that the volume fractio... |
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| Keywords: | TWIP steel water quenching deformed twin microstructure mechanical property |
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