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补焊长度对P92补焊残余应力的影响

卜凡辉, 徐连勇, 韩永典, 赵雷

卜凡辉, 徐连勇, 韩永典, 赵雷. 补焊长度对P92补焊残余应力的影响[J]. 焊接学报, 2019, 40(9): 19-24. DOI: 10.12073/j.hjxb.2019400229
引用本文: 卜凡辉, 徐连勇, 韩永典, 赵雷. 补焊长度对P92补焊残余应力的影响[J]. 焊接学报, 2019, 40(9): 19-24. DOI: 10.12073/j.hjxb.2019400229
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BU Fanhui, XU Lianyong, HAN Yongdian, ZHAO Lei. Influence of repair length on residual stress in the repair weld of P92 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 19-24. DOI: 10.12073/j.hjxb.2019400229
Citation: BU Fanhui, XU Lianyong, HAN Yongdian, ZHAO Lei. Influence of repair length on residual stress in the repair weld of P92 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 19-24. DOI: 10.12073/j.hjxb.2019400229
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补焊长度对P92补焊残余应力的影响

  • 1.

    天津大学 材料科学与工程学院, 天津 300072

  • 2.

    天津大学 材料科学与工程学院, 天津 300072;天津市现代连接技术重点实验室, 天津 300072

基金项目: 国家重点研发计划资助（2017YFB1303300）

Influence of repair length on residual stress in the repair weld of P92 steel

  • 1.

    School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

  • 2.

    School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300072, China

摘要

    摘要
  • 摘要: 基于有限元模拟软件SYSWELD，通过建立P92钢板补焊过程的三维有限元模型，计算了补焊过程的温度场及应力场分布，讨论分析了不同补焊长度对残余应力分布的影响. 结果表明，无论是横向还是纵向残余应力，较大的拉应力水平都出现在焊缝和热影响区附近，同时在母材处应力值逐渐降低. 随着补焊长度的增加，横向残余应力在结构表面中心，热影响区和焊缝位置均存在下降趋势. 对于纵向残余应力来说，随着补焊长度的增加，应力值在焊缝位置呈下降趋势，而结构表面中心和热影响区变化较小.
    Abstract: Based on SYSWELD software, a 3-D finite element simulation is performed to investigate the temperature field and residual stress in the repair weld process of P92 plate. The results show that large tensile residual stresses are genetated in the repair weld and heat affected zone, and decrease in the base metal gradually. With the increase of repair length, the transverse residual stress decreased in the middle of plate surface, HAZ and weld metal.The longitudinal stess shows a declining trend in weld matal with the increase of repair length, while in the middle of plate surface and HAZ, it is affected a little by the repair length.
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    • 参考文献(11)
  • [1] 赵勇桃.超超临界锅炉用P92钢的组织性能及应用[M].北京:冶金工业出版社, 2015. Zhao Yongtao.Microstructureand propertyand application of P92 steel used to ultra supercritical boiler[M]. Beijing:Metallurgical Industry Press, 2015.
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    [3] Allen D J, Harvey B, Brett S J. "Fourcrack" -An investigation of the creep performance of advanced high alloy steel welds[J]. International Journal of Pressure Vessels and Piping, 2007, 84(1-2):104-113.
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    [6] 张建强,张国栋,郭嘉琳. HR3C/T91异种耐热钢焊接接头界面蠕变失效有限元模拟[J].焊接学报, 2017, 38(10):11-15 Zhang Jianqiang, Zhang Guodong, Guo Jialin. Finite element simulation of interfacial creep failure of welded joints of HR3C/T91 heat resistant steel[J]. Transactions of the China Welding Instirution, 2017, 38(10):11-15
    [7] 刘晓占.固态相变对P92钢多层多道焊接残余应力影响的研究[D].重庆:重庆大学, 2015.
    [8] Jiang Wenchun, Xu X P, Gong J M, et al. Influence of repair length on residual stress in the repair weld of a clad plate[J]. Nuclear Engineering and Design, 2012, 246:211-219.
    [9] Jiang Wenchun, Liu Zibai, Gong J M, et al. Numerical simulation to study the effect of repair width on residual stresses of a stainless steel clad plate[J]. International Journal of Pressure Vessels and Piping, 2010, 87(8):457-463.
    [10] 邓德安,张彦斌,李索,等.固态相变对P92钢焊接接头残余应力的影响[J].金属学报, 2016(04):394-402 Deng Dean, Zhang Yanbin, Li Suo, et al. Influence of solid-state phase transformation on residual stress in P92 steel welded joint[J]. Acta Metallurgica Sinica, 2016(04):394-402
    [11] 陈庆宏,吕小青,徐连勇,等. P92钢的CMT+P焊接接头组织性能[J].焊接学报, 2018, 39(12):110-140 Chen Qinghong, Lü Xiaoqing, Xu Lianyong, et al. Microstructure and properties of CMT+P welded joints of P92 steel[J]. Transactions of the China Welding Instirution, 2018, 39(12):110-140
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  • 收稿日期:  2018-04-14

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