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ZHANG Binggang, ZHANG Chunguang, CHEN Guoqing, Liu Wei, LIU Chen-glai. Microstructure and mechanical properties of 5A02/0Cr18Ni9 joint by electron beam welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (5): 5-8.
Citation: ZHANG Binggang, ZHANG Chunguang, CHEN Guoqing, Liu Wei, LIU Chen-glai. Microstructure and mechanical properties of 5A02/0Cr18Ni9 joint by electron beam welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (5): 5-8.
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Microstructure and mechanical properties of 5A02/0Cr18Ni9 joint by electron beam welding

  • 1.

    National Key Laboratory of Advanced Welding Produc-tion Technology, Harbin Institute of Technology, Harbin 150001, China

  • 2.

    Avic Shenyang Liming Aero-ingine(group)Corporation Ltd., Shenyang 110043, China

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  • Received Date: January 20, 2010
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    • Abstract
  • Electron beam welding was used to join alumi-num alloy 5A02 to stainless steel 0Cr18Ni9.Weld appearance,microstructure,mechanical properties and fracture characteristics were studied.The result showed that a lot of brittle Fe-Al inter-metallic compounds were formed in the joint welded by electron beam at the center between aluminum alloy 5A02 and stainless steel 0Cr18Ni9 and the base metals were not joined effectively.The formation of non-centered joints was good in general,and the base metals were joined in the form of fusion-brazing.There is a compounds layer about 1.5 μm in thickness on the interface of the joint,and the XRD analysis showed that it is comprised of FeAl,FeAl3 and FeAl6.The highest tensile strength of the joint was 136 MPa,reaches 62.7% of the aluminum alloy.The frac-ture showed a mixed brittle-ductile feature,and the fracture oc-cured in the compound layer and the aluminum weld near the compound layer.
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