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CHEN Pin-tong, ZHANG Bo-zhi. Influence of Heat Treatment on Microstructure and Property of Welded Joint of 12Cr1MoV Steel Pipe[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2014, 50(3): 180-183.
Citation: CHEN Pin-tong, ZHANG Bo-zhi. Influence of Heat Treatment on Microstructure and Property of Welded Joint of 12Cr1MoV Steel Pipe[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2014, 50(3): 180-183.
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Influence of Heat Treatment on Microstructure and Property of Welded Joint of 12Cr1MoV Steel Pipe

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  • Received Date: April 07, 2013
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  • The effect of post-weld-heat-treatment (PWHT) on microstructure and property of 12Cr1MoV steel pipe joint welded by TIG welding was studied by microstructure observation and mechanical property examination. The results showed that all the specimens were eligible after face bending for 180°, but tiny crack occurred during root bending test in the as-welded joints, no crack observed after PWHT; the tensile strength of the joint was improved after PWHT. PWHT eliminated the hardened microstructure, the plasticity and strength were therefore elevated.
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    • References (4)
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    中国机械工程协会焊接分会. 焊接手册: 第2卷[M].北京:机械工业出版社, 2008.
    [2]
    郭元蓉, 吴红, 陈雨, 等. 厚壁12Cr1MoV钢管的热处理工艺优化[J].钢管, 2008, 37 (5): 15-19.
    [3]
    李林. 12Cr1MoV钢管焊接热处理与组织性能[J].焊接技术, 1999(1):47.
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    周文, 姚正军. 12Cr1MoV大口径钢管焊接工艺[J].江苏冶金, 2003, 31 (1):16-18.
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