高温合金铸锭均匀化程度对开坯热变形的再结晶影响
董建新(
),李林翰,李浩宇,张麦仓,姚志浩
),李林翰,李浩宇,张麦仓,姚志浩
EFFECT OF EXTENT OF HOMOGENIZATION ON THE HOT DEFORMATION RECRYSTALLIZATION OF SUPERALLOY INGOT IN COGGING PROCESS
Jianxin DONG(),Linhan LI,Haoyu LI,Maicang ZHANG,Zhihao YAO
),Linhan LI,Haoyu LI,Maicang ZHANG,Zhihao YAO
图17. GH4738铸态合金和均匀化12 h试样经1150 ℃, 0.1 s-1, 变形量30%热变形后中心区域的FESEM像
Fig.17. FESEM images of the center area of as-cast GH4738 alloy (a) and homogenized at 1150 ℃ for 12 h after hot compression (1150 ℃, 0.1 s-1, 30%) (b)
