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Two-stage aging behavior of pulse variable polarity plasma arc welding joint of 7075 aluminum alloy
Guo-wei LI, Ya-hong LIANG, Fu-rong CHEN, Yong-quan HAN
Journal of Materials Engineering . 2020, (2): 140 -147 .  DOI: 10.11868/j.issn.1001-4381.2018.001007