| 含1.2%铝TRIP钢中残留奥氏体的EBSD研究 |
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| 引用本文： | 柳得橹,李忠义,张建,娄艳芝. 含1.2%铝TRIP钢中残留奥氏体的EBSD研究[J]. 电子显微学报, 2010, 29(1): 23-27 |
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| 作者姓名： | 柳得橹 李忠义 张建 娄艳芝 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083;北京科技大学材料科学与工程学院,北京,100083;马鞍山钢铁股份有限公司技术中心,安徽,马鞍山,243000;马鞍山钢铁股份有限公司技术中心,安徽,马鞍山,243000 |
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| 摘 要： | 残留奥氏体的含量、颗粒尺寸与分布及其稳定性是相变诱导塑性（TRIP）钢获得优良使用性能的关键。马钢试制成功含1.2%铝的TRIP-600钢板,作者用场发射枪扫描电镜EBSD技术对该TRIP钢的残留奥氏体形态、分布与体积分数进行了实验研究。结果表明：实验钢中的奥氏体主要呈细小颗粒状、尺寸在几微米以下,弥散分布于铁素体晶界和晶粒内。EBSD与X-射线衍射测得实验钢板半厚度区的奥氏体体积分数分别为2%和11.4%。本文讨论了EBSD技术测定TRIP钢奥氏体分数引入误差的主要因素。采集图像的步长、试样分析区的选取及试样制备技术等是影响实验结果的重要因素。
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| 关 键 词： | 相变诱导塑性钢 残留奥氏体 扫描电镜EBSD取向图像 |
EBSD study on retained Austenite in a TRIP steel bearing 1.20% Al |
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| LIU De-lu,LI Zhong-yi,ZHANG Jian,LOU Yan-zhi. EBSD study on retained Austenite in a TRIP steel bearing 1.20% Al[J]. Journal of Chinese Electron Microscopy Society, 2010, 29(1): 23-27 |
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| Authors: | LIU De-lu LI Zhong-yi ZHANG Jian LOU Yan-zhi |
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| Affiliation: | 1;2;2;1;1.School of Material Science and Engineering;University of Science and Technology Beijing;Beijing 100083;2.Technology Center;Maanshan Iron and Steel Co.;Ltd.;Maanshan Anhui 243000;China |
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| Abstract: | The volume fraction,size and distribution of retained austenite as well as its stability are the key factors for obtaining good mechanical properties in transformation induced plasticity(TRIP) steels.The TRIP-600 bearing 1.20% Al has been successfully prepared in Maanshan Iron and Steel Co.on a laboratory scale.Morphology,volume fraction and distribution of retained austenite in the TRIP steel were studied by EBSD method with FEG-SEM.The results showed that the austenite consists of small islands and disper... |
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| Keywords: | EBSD TRIP steels retained austenite EBSD orientation map with SEM |
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