| T92/TP347H异种钢焊接接头的组织结构和力学性能 |
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| 引用本文： | 陈国宏,余新海,刘俊建,王家庆,化建,宋有明,张涛,汤文明.T92/TP347H异种钢焊接接头的组织结构和力学性能[J].压力容器,2010,27(12):1-7. |
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| 作者姓名： | 陈国宏 余新海 刘俊建 王家庆 化建 宋有明 张涛 汤文明 |
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| 作者单位： | 安徽省电力科学研究院;合肥津利能源科技发展有限公司;合肥工业大学材料科学与工程学院; |
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| 基金项目： | 安徽省电力科学研究院技术开发基金 |
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| 摘 要： | 采用ERNiCr-3和ERNiCrMo-3两种镍基焊丝,GTAW法实现T92/TP347H异种钢管焊接。研究了接头的显微组织结构、熔合区(线)两侧的成分分布和接头的力学性能,以及焊后热处理对接头组织结构及力学性能影响等。结果表明:T92/TP347H异种钢接头T92侧热影响区(HAZ)主要由过热区、粗晶区及细晶区构成;TP347H侧HAZ没有明显晶粒长大的现象,但晶界、晶内有碳化物析出。两种焊丝焊接的T92/TP347H异种钢接头拉伸断裂面位于TP347H侧母材,焊缝强度较高;ERNiCrMo-3焊接接头的强度高于ERNiCr-3焊接接头,但塑、韧性不如后者。750℃,30 min焊后热处理,有助于降低T92侧HAZ硬度,改善接头的综合力学性能。
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| 关 键 词： | T92钢 TP347H钢 异种钢焊接 焊后热处理 组织结构 |
Microstructures and Mechanical Properties of the T92/TP347H Dissimilar Steel Welded Joints |
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| CHEN Guo-hong,YU Xin-hai,LIU Jun-jian,WANG Jia-qing,HUA Jian,SONG You-ming,ZHANG Tao,TANG Wen-ming.Microstructures and Mechanical Properties of the T92/TP347H Dissimilar Steel Welded Joints[J].Pressure Vessel Technology,2010,27(12):1-7. |
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| Authors: | CHEN Guo-hong YU Xin-hai LIU Jun-jian WANG Jia-qing HUA Jian SONG You-ming ZHANG Tao TANG Wen-ming |
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| Affiliation: | CHEN Guo-hong1,YU Xin-hai2,LIU Jun-jian3,WANG Jia-qing1,HUA Jian2,SONG You-ming3,ZHANG Tao1,TANG Wen-ming3 (1.Anhui Institute of Electric Power Science,Hefei 230601,China,2.Hefei Jinli Power Science and Technology Co.,Ltd.,3.School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | T92/TP347H dissimilar steel joints were welded through the GTAW techlonogy,using two type of Ni-based welding wires ERNiCr-3 and ERNiCrMo-3.Microstructures and mechanical properties of the T92/TP347H dissimilar steel welded joints were studied.Effects of the post-weld heat-treatment on the microstructures and mechanical properties of the joints were also investigated.The results show that in the T92/TP347H dissimilar steel welded joints,the T92 heat effected zone(HAZ) mainly consists of the superheated zone... |
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| Keywords: | T92 steel TP347H steel dissimilar steel welding post-weld heat-treatment microstructure |
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