Sunday, May 10, 2015

[MW:23260] Dissimilar Joint between P22(2.25Cr-1Mo) to P91( 9Cr-1Mo-V)

Hello,For dissimilar welding between P22 to P91, i have used Inconel  182 electrode.is it correct electrode.I have also tried buttering of inconel 182 on P22 and P91 and balance welding with B9 and B3.Then PWHT at 740 for 3  hours.. With buttering Side bend specimen fails adjecent to buttering in weld.. what can be reason for it?

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