吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 1200-1205.doi: 10.13229/j.cnki.jdxbgxb201504026

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Modification of solid solution Mg-Gd-Y-Nd alloy irradiated by high current pulsed electron beam

GUAN Qing-feng, LI Yan, HOU Xiu-li, YANG Sheng-zhi, WANG Xiao-tong   

  1. College of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
  • Received:2014-02-27 Online:2015-07-01 Published:2015-07-01

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Abstract: High-Current Pulsed Electron Beam (HCPEB) was employed for the surface irradiation of solid solution Mg-Gd-Y-Nd alloy. The microstructures of the specimens before and after the irradiation were characterized in detail using X-Ray Diffraction (XRD), Optimal Microscopy (OM) and Scanning Electron Microscopy (SEM). The microhardness and corrosion resistance of the irradiated samples were also examined. The experiment results indicate that the sample surface was remelted after HCPEB irradiation. The electrochemical corrosion resistance of the irradiated surfaces was improved obviously. Grain refinement on the surface, the formation of remelting layer and the solid solution strengthening effect of rare earth elements are believed to be the dominating reasons for the improvement of the hardness and corrosion resistance performance.

Key words: metallic materials, high-current pulsed electron beam (HCPEB), Mg-Gd-Y-Nd alloy, surface microstructure, microhardness, corrosion resistance

CLC Number: 

  • TG113.2
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