<strong>GH4720Li</strong>合金毫米级粗大晶粒热变形获得均匀等轴晶粒的可行性及工艺控制

GH4720Li合金毫米级粗大晶粒热变形获得均匀等轴晶粒的可行性及工艺控制

刘超, 姚志浩, 江河, 董建新

The Feasibility and Process Control of Uniform Equiaxed Grains by Hot Deformation in GH4720Li Alloy with Millimeter-Level Coarse Grains

LIU Chao, YAO Zhihao, JIANG He, DONG Jianxin

图6 细晶和粗晶GH4720Li合金试样在1130℃以不同应变速率变形后的再结晶组织

Fig.6 Recrystallization structures of fine-grained (a, b) and coarse-grained (c, d) GH4720Li alloy samples under $\dot{ε}$ = 0.001 s^-1(a, c) and $\dot{ε}$ = 1 s^-1 (b, d) at 1130^oC