【摘 要】
：
The high-current pulsed electron beam (HCPEB) treatment with current density 6 J/cm2 was applied on AZ91 Mg alloy to improve its corrosion resistance.Results showed that the net-like Mg17Al12 disappeared on the surface of AZ91 Mg alloy after irradiation b
【机 构】
：
Shanxi Key Laboratory of Advanced Magnesium-Based Materials, College of Materials Science and Engine
论文部分内容阅读
The high-current pulsed electron beam (HCPEB) treatment with current density 6 J/cm2 was applied on AZ91 Mg alloy to improve its corrosion resistance.Results showed that the net-like Mg17Al12 disappeared on the surface of AZ91 Mg alloy after irradiation by HCPEB,which was instead of supersaturated A1 element on the surface.Nevertheless,the application of HCPEB also led to the formation of crater-like and groove-like structures as well as micro-cracks on the surface of AZ91 Mg alloy.After HCPEB treatment by 3,5 and 10 pulses,the AZ91 Mg alloy exhibited better corrosion resistance.However,the increasing amount of micro-cracks reduced the anti-corrosive properties of AZ91 Mg alloy as the pulse increased to 20 and 30.
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