热处理工艺对GH4720Li合金细晶铸锭组织与热加工性能的影响
王涛,万志鹏(
),李钊,李佩桓,李鑫旭,韦康,张勇
),李钊,李佩桓,李鑫旭,韦康,张勇
Effect of Heat Treatment Parameters on Microstructure and Hot Workability of As-Cast Fine Grain Ingot of GH4720Li Alloy
WANG Tao,WAN Zhipeng(),LI Zhao,LI Peihuan,LI Xinxu,WEI Kang,ZHANG Yong
),LI Zhao,LI Peihuan,LI Xinxu,WEI Kang,ZHANG Yong
图3. 不同热处理温度保温1 h条件下GH4720Li合金细晶铸锭的微观组织
Fig.3. Microstructures of as-cast fine grain ingot of GH4720Li alloy under heat treatment temperatures of 1130 ℃ (a), 1140 ℃ (b), 1150 ℃ (c), 1160 ℃ (d), 1170 ℃ (e), 1180 ℃ (f), 1200 ℃ (g) and 1220 ℃ (h) for 1 h (Insets show the morphologies of incipient melting phase)
