The diffusion welding of titainium alloy (Ti-6Al-4V) and stainless steel (1Cr18Ni9Ti)is studied by using pure copper and nickel as an intermediate layer. Using microscopic examination, SEM and X-ray diffraction analyze for micro zone of weld interface, the test result shows using Cu or Ni as an interrneaiate layer,can not prevent diffusion of Ti to stainless steel. Diffusion of elements forms different phase and varied compounds in the bond. In this case,the strength of the bond is low and the bond appears ...
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