【摘 要】
：
The effects of GdCl3 in flux on the loss of Gd,microstructure,mechanical properties,and corrosion resistance of Mg-Gd-Y-Zr(GW103K)scraps were investigated by IC
【机 构】
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National Engineering Research Center of Light Alloy Net Forming，Shanghai Jiao Tong University,State
论文部分内容阅读
The effects of GdCl3 in flux on the loss of Gd,microstructure,mechanical properties,and corrosion resistance of Mg-Gd-Y-Zr(GW103K)scraps were investigated by ICP,XRD.SEM and EDS.The results show that the loss of Gd in the alloy decreases with increasing GdCl3 content in the flux,and the mechanism of GdCl3 suppressing the loss of Gd was analyzed by thermodyrnamic theory.The optimal average mechanical properties could be obtained when the GdCl3 content in the flux was 5% (mass fraction).Compared with the alloy only treated by JDMJ flux,the σb and σs of GW103K alloy were improved from 160.91 Mpa and 133.88 Mpa to 224.96 Mpa and 157.91 Mpa by 39.8%and 17.95%,respectively.Immersion test shows the corrosion rate 42.7%.GdCl3 has no effect on the fracture pattern of GW103K alloy.
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