Influence of Repair Welding on Mechanical Properties of 5A06 Aluminum Alloy Welded Joint

摘 要
以5A06铝合金焊接模拟件的一次焊接接头和二次焊接(补焊)接头为研究对象,通过拉伸试验、疲劳试验,以及对疲劳断口形貌观察,研究了补焊对该焊接接头力学性能的影响。结果表明:补焊会造成焊接接头力学性能的下降,其中静强度和中值疲劳强度下降明显;焊缝是接头拉伸强度与疲劳性能的薄弱部位,补焊会造成焊缝附近金属晶粒粗大。








Abstract
With the initial welded joint and second (ropair welding) welded joint of the simulated welded part of 5A06 aluminum alloy as research objects, the influence of repair welding on the mechanical properties of the welded joint was studied by tensile test, fatigue test and fatigue fracture morphology observation. The results show that the repair welding decreased the mechanical properties of the welded joint, especially decreased the static strength and median fatigue strength significantly. The weld seam was the weak part of the welded joint in tensile strength and fatigue performance, and the repair welding gave rise to the coarse grains of the metal near weld seam.
中图分类号 TG457.14 DOI 10.11973/jxgccl201708019
所属栏目 材料性能及应用
基金项目 国家自然科学基金资助项目(11302105);航空基金资助项目(2014ZF52074)
收稿日期 2016/4/28
修改稿日期 2017/5/9
网络出版日期

作者单位点击查看

备注张举麟(1991-),男,江苏徐州人,硕士研究生
引用该论文: ZHANG Julin,LI Botao,ZHANG Huasong,TONG Mingbo. Influence of Repair Welding on Mechanical Properties of 5A06 Aluminum Alloy Welded Joint[J]. Materials for mechancial engineering, 2017, 41(8): 84~86
张举麟,李波涛,张华松,童明波. 补焊对5A06铝合金焊接接头力学性能的影响[J]. 机械工程材料, 2017, 41(8): 84~86
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好






参考文献
【1】张士林,任赞颂.简明铝合金手册[M]. 上海:上海科学技术文献出版社, 2001.
【2】雷欣,聂祚仁,黄晖,等. 织构对含铒铝合金疲劳裂纹扩展行为的影响[J]. 机械工程材料,2015,39(6):11-15.
【3】闫忠杰,陈书翔,尚哲,等. A7N01铝合金焊接接头的补焊性能分析[J]. 焊接学报,2014,35(5):51-54.
【2】雷欣,聂祚仁,黄晖,等. 织构对含铒铝合金疲劳裂纹扩展行为的影响[J]. 机械工程材料,2015,39(6):11-15.
【3】闫忠杰,陈书翔,尚哲,等. A7N01铝合金焊接接头的补焊性能分析[J]. 焊接学报,2014,35(5):51-54.
相关信息