Microstructure and Property Analysis of the Vacuum Brazed Carbon-CarbonComposites and High Temperature Alloys Joint
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TG407

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    Abstract:

    Joining samples of carbon/ carbon composites (C/ C composites) and Ni based high temperature alloy
    (GH600) were fabricated by vacuum brazing with the powder of BNi68CrWB as the interlayer material. The mechanical
    properties and microstructure of the joints between C/ C composite and GH600 were investigated by scanning electron
    microscopes and universal material testing machines. The results show that the joining of C/ C composites to Ni
    based high temperature alloy is successfully achieved by vacuum brazing process. The fracture of the joint occurs in
    the C/ C composites. The shear strength at high temperature of the brazed joints rapidly decreases above 700 ℃.

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  • Received:
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  • Online: November 28,2016
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