| 热处理工艺对CLAM钢电子束焊缝显微组织与冲击韧性的影响 |
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| 引用本文： | 胡杰,姜志忠,黄继华,陈树海,赵兴科,张华. 热处理工艺对CLAM钢电子束焊缝显微组织与冲击韧性的影响[J]. 焊接学报, 2012, 33(11): 67-71 |
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| 作者姓名： | 胡杰 姜志忠 黄继华 陈树海 赵兴科 张华 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京100083 神龙汽车有限公司技术中心,武汉430050
2. 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家重点基础研究发展规划资助项目 |
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| 摘 要： | 对聚变堆用中国低活化马氏体钢（CLAM钢）进行了真空电子束焊接试验，并对接头进行了回火和调质处理．利用光学显微镜（OM）、扫描电镜（SEM）及透射电镜（TEM）对焊缝热处理前后的显微组织进行了观察，并对焊缝进行了室温冲击试验．结果表明，焊态下，焊缝由粗大板条马氏体和δ铁素体构成，其冲击韧性较差；回火处理后，马氏体组织转变为回火马氏体组织，δ铁素体保存下来，且其晶界聚集了大量M23C6型碳化物．碳化物地聚集使得δ铁素体与原奥氏体晶界的结合减弱，在受到外部载荷作用时，裂纹易于萌生和扩展，故回火后焊缝冲击韧性未得到改善；调质处理消除了δ铁素体，焊缝组织转变为和母材相同的回火马氏体组织，焊缝冲击韧性显著提高．
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| 关 键 词： | 中国低活化马氏体钢 真空电子柬焊 显微组织 冲击韧性 |
| 收稿时间： | 2011-06-20 |
Effects of heat treatment processes on microstructure and impact toughness of weld metal of vacuum electron beam welding on CLAM steel |
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| HU Jie,JIANG Zhizhong,HUANG Jihu,CHEN Shuhai,ZHAO Xingke and ZHANG Hua. Effects of heat treatment processes on microstructure and impact toughness of weld metal of vacuum electron beam welding on CLAM steel[J]. Transactions of The China Welding Institution, 2012, 33(11): 67-71 |
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| Authors: | HU Jie JIANG Zhizhong HUANG Jihu CHEN Shuhai ZHAO Xingke ZHANG Hua |
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| Affiliation: | Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China;Dongfeng Peugeot citroen Automobile Co., Ltd, Wuhan 430050, China,Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China;Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230000, China,Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China,Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China,Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China and Department of Materials Science and Techonology, Univessity of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | |
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| Keywords: | China low activation martensitic steel vacuum electron beam welding microstructure impact toughness |
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