| C-Mn-Al系TRIP钢连续冷却转变及组织研究 |
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| 引用本文： | 马海,张宇光,赵爱民,唐荻.C-Mn-Al系TRIP钢连续冷却转变及组织研究[J].热加工工艺,2010,39(6). |
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| 作者姓名： | 马海 张宇光 赵爱民 唐荻 |
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| 作者单位： | 北京科技大学,冶金工程研究院,北京,100083 |
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| 基金项目： | "十一五"国家科技支撑计划项目，北京市科技计划产业类项目 |
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| 摘 要： | 采用热膨胀仪测定了C-Mn-Al系TRIP钢在不同冷速下连续冷却转变的膨胀曲线;并运用Thermo-Calc软件,进行了C-Mn-Al系TRIP钢相变的理论计算。结合金相组织观察,研究了其连续冷却转变产物的组织形态。结果表明,当冷速0.5℃/s时,组织由许多多边形先共析铁素体、少量珠光体和无碳化物贝氏体组成;冷速5℃/s时,组织为铁素体和贝氏体;冷速10℃/s时,开始出现马氏体和贝氏体的混合组织。
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| 关 键 词： | TRIP钢 连续冷却转变曲线(CCT曲线) 显微组织 |
Research on Continuous Cooling Transformation and Microstructure of C-Si-Al TRIP Steel |
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| MA Hai,ZHANG Yuguang,ZHAO Aimin,TANG Di.Research on Continuous Cooling Transformation and Microstructure of C-Si-Al TRIP Steel[J].Hot Working Technology,2010,39(6). |
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| Authors: | MA Hai ZHANG Yuguang ZHAO Aimin TANG Di |
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| Affiliation: | MA Hai,ZHANG Yuguang,ZHAO Aimin,TANG Di (Engineering Research Institute,University of Science , Technology Beijing,Beijing 100083,China) |
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| Abstract: | The CCT curves of C-Si-Al TRIP steel were measured under different cooling speeds using thermal simulator instrument DIL805A, the phase transition point of C-Mn-Al TRIP steel was calculated using Thermo-Calc software. According to metallographic analysis, the microstructure of the sample was researched. The results show that when the cooling rate is above 0.5℃/s, the microstructure is made up of abundance pro-eutectoid ferrite, a little pearlite and carbon-flee bainite; while the cooling rate is above 5℃/s, ferrite and carbon-flee bainite are obtained; there are martensite and bainite in microstructure at above 10℃/s. |
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| Keywords: | TRIP steel continuous cooling transformation curve (CCT curve) microstructure |
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