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15. 不同均匀化程度GH4738合金试样在1150 ℃, 0.1 s-1, 30%热变形条件下的中心大变形区金相组织
Fig.15. Metallographies of the center area samples after hot compression (1150 ℃, 0.1 s-1, 30%) of as-cast GH4738 alloy (a) and homogenized at 1150 ℃ for 12 h (b), 24 h (c) and 50 h (d)
