高合金化GH4151合金复杂析出相演变行为

王法, 江河, 董建新

Evolution Behavior of Complex Precipitation Phases in Highly Alloyed GH4151 Superalloy

WANG Fa, JIANG He, DONG Jianxin

表1 铸态GH4151合金枝晶间各析出相的化学成分 (atomic fraction / %)

Table 1 Chemical compositions of precipitations at interdendritic region in Figs.2d-f of as-cast GH4151 superalloy

Region C Al Ti V Cr Co Ni Nb Mo W Phase A 0 1.20 1.62 0.41 21.23 22.20 25.54 12.24 13.65 2.34 Laves B 0 6.52 8.11 0 3.63 12.62 61.02 6.36 1.15 0.51 η C 0 9.80 7.28 0 2.97 12.72 69.07 3.13 1.04 0.14 γ/γ' eutectic D 56.25 0.08 10.84 0.25 0.34 0.36 1.48 28.88 0.84 0.48 MC carbide