一种喷射成形难变形高温合金的组织研究  

The Study on Microstructure of a Hard-deformed Spray Formed Superalloy

作　　者：袁华[1] 李周[1] 张国庆[1] 许文勇[1] 姚瑞平[1] 田世藩[1] 

机构地区：[1]北京航空材料研究院先进高温结构材料国防科技重点实验室,北京100095

出　　处：《材料工程》2009年第S1期150-153,共4页Journal of Materials Engineering

基　　金：国家高技术研究发展计划资助项目(2006AA032114);国家973计划课题(2006CB605204-2);国家自然科学基金项目(50701041)

摘　　要：研究了喷射成形工艺对一种高铝钛比、难变形高温合金GH710组织的影响,结果表明:喷射成形工艺成功制备GH710沉积坯件,坯件经过热等静压和变形后,外观组织良好,合金组织细密,晶粒尺寸在45μm左右,具有非常强的晶粒抗长大能力,主要有两种尺寸的γ′相,数量较多,主要分布在晶界和晶内。Effects of spray formed process on microstructure of hard-deformed superalloy GH710 with high Al/Ti ratio were studied.The results show that GH710 deposited pieces,which have good macro and micro structure after HIP and forged,can be made by spray forming.The grain size is about 45μm and hasn't changed with increasing temperature.There are many γ′ phases which mainly distribute in or between crystal grain with two different size.

关 键 词：喷射成形 高温合金 组织 

分 类 号：TG132.33[一般工业技术—材料科学与工程]