The Combined Impact of Magnetic Field and Chloride Ion Concentration on Corrosion Behavior of Al-Mg Alloys  

作　　者：ZHANG Xin HUANG Lianpeng TAO Jiahao WANG Zehua ZHOU Zehua CAI Xin WEN Tao 张欣;HUANG Lianpeng;TAO Jiahao;WANG Zehua;ZHOU Zehua;CAI Xin;WEN Tao(College of Mechanics and Materials,Hohai University,Nanjing 210098,China;Beijing Yubing Water Hydraulic Survey Planning Design Co.Ltd.Jiangsu Branch,Nanjing 211111,China)

机构地区：[1]College of Mechanics and Materials,Hohai University,Nanjing 210098,China [2]Beijing Yubing Water Hydraulic Survey Planning Design Co.Ltd.Jiangsu Branch,Nanjing 211111,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2022年第6期1192-1203,共12页武汉理工大学学报（材料科学英文版）

基　　金：by the National Natural Science Foundation of China(No.51909071);the Natural Science Foundation of Jiangsu Province(No.BK20190493);the Fundamental Research Funds for the Central Universities(No.B220202040)。

摘　　要：The impact of magnetic field on the corrosion behavior of Al-Mg-xR_(E)/Fe alloys in NaCl solutions with concentrations of 1.5wt%,3.5wt%,and 5.5wt%were studied by microstructure observation,immersion test,and electrochemical test.The combined impacts of magnetic field and chloride ion concentration on the corrosion behavior of Al-Mg alloys with various electrode potential phases were discussed.The results indicate that Al-3.0Mg-xR_(E)/Fe alloys corrode faster and have a higher pitting corrosion potential in the NaCl solution with a higher concentration.In addition,a magnetic field can lower the pitting sensitivity and corrosion rate of Al-3.0Mg and Al-3.0Mg-0.2R_(E)/Fe alloys in NaCl solution with different concentrations.However,at a higher concentration of NaCl solution,the magnetic field has a weaker inhibiting effect on corrosion rate and pitting sensitivity.In NaCl solutions with concentrations of 1.5wt%and 3.5wt%,the corrosion rate and pitting sensitivity of Al-3.0Mg-1.0R_(E)/Fe alloys can be reduced by a magnetic field.However,in NaCl solution with the concentration of 5.5wt%,the corrosion rate of the alloys is increased by a magnetic field.

关 键 词：magnetic field corrosion behavior chloride ion concentration different electrode potential phases 

分 类 号：TG174.3[金属学及工艺—金属表面处理]