A novel hole cold-expansion method and its effect on surface integrity of nickel-based superalloy

XianCao Ping, ZhangShuang Liu, Xue-Lin Lei, Run-Zi Wang, Xian-Cheng Zhang, Shan-Tung Tu

Table 1 Chemical compositions (wt.%) of the nickel-based GH4169 superalloy.

C Cr Mo Nb Ti Al P Mn S Fe Ni 0.023 17.86 2.98 5.38 0.99 0.57 0.012 0.03 0.001 18.75 Bal.