两种热处理的GH132合金持久强度性能的研究  

A Study on Creep Rupture of Superalloy GH132 with Two Different Heat Treatments

作　　者：邓军[1] 王翔[1] 周浩[1] 田茂胜[1] 高维佳 周乃标 

机构地区：[1]中国科学院固体物理研究所,南京汽轮电机厂

出　　处：《机械工程材料》1994年第6期6-7,23,共3页Materials For Mechanical Engineering

摘　　要：研究了两种Ｔｉ含量的ＧＨ１３２合金，分别经过标准热处理和“４３３２”热处理后的持久强度性能。观察到两种Ｔｉ含量的试样，４３３２热处理试样较之标准热处理试样有较短的断裂寿命和较高的延性。ＳＥＭ的观察表明，标准热处理后的试样主要发生沿晶断裂，而４３３２热处理后，则发生兼有沿晶和穿晶的混合型断裂。穿晶断裂比例的增加是延性提高的原因。Abstract The creep rupture of superalloy GH132 containing two different Ti with standard heat treatment and u4332' heat treatment was studied' It was observed that for both contents of Ti, the specimens with u4332' heat treatment have shorter fracture life and higher ductility than those with standard heat treatment. SEM observations show that the fracture of the specimens with standard heat treatment is mainly intergranular,while that with '4332' heat treatment, becomes mixed mode of intergranular and transgranular. The increase in ductility can be attributed to the increase in ratio of transgranular fracture.

关 键 词：高温合金 热处理 蠕变 强度 合金 

分 类 号：TG166[金属学及工艺—热处理]