李帅,刘中英,王星星,毛丰,夏月庆,纠永涛,上官林建,龙伟民.补焊对7N01焊接接头腐蚀行为的影响[J].稀有金属材料与工程,2021,50(3):762~768.[Shuai Li,Zhongying Liu,Xingxing Wang,Feng Mao,Yueqing Xia,Yongtao Jiu,Linjian Shangguan,Weimin Long.Effect of repair welding on the corrosion behavior of 7N01 aluminum alloy welded joint[J].Rare Metal Materials and Engineering,2021,50(3):762~768.]
补焊对7N01焊接接头腐蚀行为的影响
投稿时间:2020-07-24  修订日期:2020-08-26
中文关键词:  MIG焊  补焊  7N01铝合金  腐蚀行为  热影响区  热循环
基金项目:Research Foundation for High-level talent Scholars in North China University of Water Resources and Electric Power (No. 201811034), Open Fund of National Joint Engineering Research Center for abrasion control and molding of metal materials (No.HKDNM2019020), the National Natural Science Foundation of China (51705151), the China Postdoctoral Science Foundation (2019M662011), Open Fund of State Key Laboratory of Advanced Brazing Filler Metals and Technology (SKLABFMT201901) and Key Technology Needs of Henan Province Unveiled and Solved Project (191110111000).
中文摘要:
      实际生产过程中,补焊过程往往焊接接头的可靠性产生影响。本文研究了补焊对7N01-T5/7N01-T4异种铝合金腐蚀性能的影响。结果表明,补焊会导致焊接接头耐蚀性降低,特别是热影响区域。焊接接头腐蚀性能演变主要与补焊过程中Zn元素从基体向晶界处的扩散有关。
Effect of repair welding on the corrosion behavior of 7N01 aluminum alloy welded joint
英文关键词:Metal inert gas welding  Repair welding  7N01 aluminum alloy  Corrosion behavior  Heat-affected zone  Thermal cycles
英文摘要:
      Mandatory repair welding for production of structural parts easily causes problems to the reliability of welded joints due to the resultant extra thermal cycle. The evolution of corrosion resistance of repair welded joint between 7N01 aluminum alloy in T5 and T4 state by metal inert gas welding process was investigated. The results reveal that repair welding deteriorated the corrosion resistance of weldment, especially of the heat-affected zone. The main reason for the change in corrosion resistance of repair weldment could be related to the transformation of precipitates and diffusion of Zn from the matrix to grain boundaries caused by the extra thermal cycles.
作者单位E-mail
李帅 华北水利水电大学 机械学院 lyctlishuai@163.com 
刘中英 华北水利水电大学 机械学院  
王星星 华北水利水电大学 机械学院  
毛丰 National Joint Engineering Research Center for Abrasion Control and Molding of  
夏月庆 School of Mechanical Engineering,North China University of Water Resources and Electric Power  
纠永涛 School of Mechanical Engineering,North China University of Water Resources and Electric Power
National Joint Engineering Research Center for Abrasion Control and Molding of 
 
上官林建 School of Mechanical Engineering,North China University of Water Resources and Electric Power  
龙伟民 School of Mechanical Engineering,North China University of Water Resources and Electric Power
National Joint Engineering Research Center for Abrasion Control and Molding of 
 
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