| 贝氏体区等温时间对TRIP钢残奥及力学性能影响 |
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| 引用本文： | 高绪涛,孙蓟泉,赵爱民,张明明,唐荻.贝氏体区等温时间对TRIP钢残奥及力学性能影响[J].材料科学与工艺,2011,19(6):123-128. |
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| 作者姓名： | 高绪涛 孙蓟泉 赵爱民 张明明 唐荻 |
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| 作者单位： | 北京科技大学冶金工程研究院;北京科技大学冶金工程研究院;北京科技大学冶金工程研究院;北京科技大学冶金工程研究院;北京科技大学冶金工程研究院 |
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| 基金项目： | 国家高技术研究发展计划资助项目(2008AA03Z502) |
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| 摘 要： | 为研究贝氏体区等温时间对热轧TRIP钢残余奥氏体和力学性能的影响,采用金相显微镜、X射线衍射、拉伸实验等方法对3种不同贝氏体区等温时间下制备的热轧TRIP钢进行分析.结果表明:随着贝氏体等温时间的延长,残余奥氏体量减少而残余奥氏体碳含量增加,残余奥氏体晶粒尺寸及残余奥氏体形貌变化不大;热轧TRIP钢的力学性能随着贝氏体...
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| 关 键 词： | 热轧TRIP钢 贝氏体区等温时间 残余奥氏体 力学性能 |
Effect of austempering isothermal-time at bainite field on retained austenite and mechanical properties in TRIP steel |
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| GAO Xu-tao,SUN Ji-quan,ZHAO Ai-min,ZHANG Ming-ming and TANG Di.Effect of austempering isothermal-time at bainite field on retained austenite and mechanical properties in TRIP steel[J].Materials Science and Technology,2011,19(6):123-128. |
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| Authors: | GAO Xu-tao SUN Ji-quan ZHAO Ai-min ZHANG Ming-ming and TANG Di |
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| Affiliation: | Research Institute of Metallurgical Engineering,University of Science & Technology Beijing,Beijing 100083,China;Research Institute of Metallurgical Engineering,University of Science & Technology Beijing,Beijing 100083,China;Research Institute of Metallurgical Engineering,University of Science & Technology Beijing,Beijing 100083,China;Research Institute of Metallurgical Engineering,University of Science & Technology Beijing,Beijing 100083,China;Research Institute of Metallurgical Engineering,University of Science & Technology Beijing,Beijing 100083,China |
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| Abstract: | To study the effect of austempering isothermal-time at bainite field on retained austenite and mechanical properties of hot rolled transformation-induced plasticity(TRIP) steels,optical microscopy(OM),X-ray diffraction(XRD) and tensile test were used to analyze hot rolled TRIP steels which were prepared by three different austempering isothermal-time at bainite field.The results show that different austempering isothermal-time has little impact on grain size and morphology of retained austenite.Carbon content of retained austenite decreases with the reducing of austempering isothermal-time at bainite field but the amounts of retained austenite have the opposite trend.When the austempering isothermal-time at bainite field become longer,the tensile strength is lower,the yield strength and elongation become higher. |
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| Keywords: | hot rolled TRIP steels austempering isothermal-time at bainite field retained austenite mechanical properties |
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