| 焊后热处理对BB503钢焊接接头性能及组织的影响 |
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| 引用本文： | 刘春波,尹桂全,程俊彪,卢立香,蒋涛.焊后热处理对BB503钢焊接接头性能及组织的影响[J].金属热处理,2004,29(12):26-30. |
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| 作者姓名： | 刘春波 尹桂全 程俊彪 卢立香 蒋涛 |
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| 作者单位： | 1. 上海宝冶建设有限公司,上海,201900
2. 安徽工业大学,材料学院,安徽,马鞍山,243002 |
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| 摘 要： | 对45mm厚的BB503钢板分别采用手工焊、CO2气体保护焊、埋弧自动焊进行焊接，对部分焊接接头进行了焊后去应力热处理。比较了不同工艺焊接接头的力学性能及显微组织的差异。结果表明，经于工焊和CO2气体保护焊焊接的BB503钢板的焊接性优于埋弧焊；焊后热处理消除了焊接接头中的残余应力，大幅度提高了接头各区的冲击韧度，综合力学性能显著提高。
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| 关 键 词： | BB503钢 焊接接头 热处理 力学性能 显微组织 |
| 文章编号： | 0254-6051(2004)12-0026-05 |
Effects of Heat Treatment After Welding on Mechanical Properties and Microstructures of BB503 Steel Welded Joints |
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| LIU Chun-bo,YIN Gui-quan,CHENG Jun-biao,LU Li-xiang,JIANG Tao.Effects of Heat Treatment After Welding on Mechanical Properties and Microstructures of BB503 Steel Welded Joints[J].Heat Treatment of Metals,2004,29(12):26-30. |
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| Authors: | LIU Chun-bo YIN Gui-quan CHENG Jun-biao LU Li-xiang JIANG Tao |
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| Affiliation: | LIU Chun-bo~1,YIN Gui-quan~2,CHENG Jun-biao~1,LU Li-xiang~1,JIANG Tao~1 |
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| Abstract: | The steel plate BB503 with 45mm in thickness was welded by shielded metal arc welding(SMAW),CO_2 gas shielded metal arc welding(GMAW)and submerged-arc automatic welding(SAW)methods respectively.Part of the welded joints was then carried out stress-relieving annealing.The mechanical properties and microstructures of the welded joints with three types of welding technology were compared.The results show that the welding adaptability of SMAW and GMAW is superior to that of SAW.The heat treatment after welding relieves residual stress in the welded joint,leading to the fine-grained microstructure and remarkably improve mechanical properties. |
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| Keywords: | steel BB503 welded joint heat treatment mechanical properties microstructure |
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