固溶时间对GH4698合金组织与性能的影响  

Effect on solution holding time on microstructure and mechanical properties of GH4698 superalloy

作　　者：赵义瀚[1] 彭建强[1] 张小伍[1] 邢玉荣[1] 王梅英[1] 刘新新[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司研究院,黑龙江哈尔滨150046

出　　处：《金属热处理》2016年第8期56-59,共4页Heat Treatment of Metals

基　　金：国家重大科学仪器设备开发专项(2012YQ22023304)

摘　　要：通过力学性能测试和扫描电镜分析,研究了缩短GH4698合金固溶时间对材料组织与性能的影响。结果表明:标准热处理中1000℃×4 h是高温时效过程;将标准热处理中固溶时间缩短至1 h,材料室温力学性能和高温力学性能均满足标准要求值;大小两种γ'相均匀弥散析出,获得良好的综合力学性能。Effect of solution time on microstructure and mechanical properties of GH4698 superalloy was investigated by means of mechanical property test and SEM analysis.Experimental results show that the process of 1000 ℃ × 4 h is high temperature aging;When the solution time is shortened to 1 h,the mechanical properties at room temperature and high temperature of the GH4698 superalloy can satisfy the standard requirements,and a good combination of strength and ductility is obtained because of homogeneous dispersion of the two types of γ＇ phase.

关 键 词：GH4698合金 固溶处理 力学性能 

分 类 号：TG156.1[金属学及工艺—热处理]