吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 1171-1178.doi: 10.13229/j.cnki.jdxbgxb201704023

• Orginal Article • Previous Articles     Next Articles

Surface alloying of Al-W alloy by high current pulsed electron beam treatment

GUAN Qing-feng1, ZHANG Yuan-wang1, SUN Xiao2, ZHANG Chao-ren2, LYU Peng1, ZHANG Cong-lin1   

  1. 1.College of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
    2.College of Jingjiang, Jiangsu University, Zhenjiang 212013, China
  • Received:2016-05-17 Online:2017-07-20 Published:2017-07-20

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Abstract: Fine W powder layer was pre-coated on the surface of Al substrate, then the surface was treated by High Current Pulsed Electron Beam (HCPEB) to obtain Al-W alloy. The microstructure of the alloy layer was analyzed in detail using X-ray diffraction (XRD), Optical Microscope (OM), Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). Experiment results show that the alloyed surface layer was formed with HCPEB irradiation. The alloyed layer is mainly composed of melting layer and solid diffusion layer with thickness about 15μm. The main phases of the alloyed layer are W and Al-W intermetallic compound. The surface hardness of the HCPEB treated samples was significantly improved. In addition, the electrochemical experiments show much better corrosion resistance of surface alloyed samples.

Key words: metallic material, high current pulsed electron beam(HCPEB), pure aluminum, alloying, hardness, corrosion resistance

CLC Number: 

  • TG174.445
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