摘要
根据奥氏体不锈钢在高温蠕变下的变形特点,提出利用EBSP通过统计∑3晶界结构来预测材料形变大小和材料剩余寿命,这为预测材料的剩余寿命提供一个新思路。利用该方法建立损伤空洞密度与∑3亚晶界结构百分数关系曲线,并对预测的结果进行验证。
Based on the deformation character of austenitic steel in high temperature creep, the structure of grain boundaries of ∑3 was counted to predict the deformation degree and residual life of the material, It could provide a new method for predicting residual life of material, The relationship between damage cavity density and percent composition of ∑3 sub-grain boundary structure in material was determined and the predicted result were validated.
出处
《物理测试》
CAS
2006年第1期31-34,共4页
Physics Examination and Testing
关键词
BSP
损伤空洞密度
∑3亚晶界结构
剩余寿命
EBSP
damage cavity density
∑3 sub-grain boundary structure
residual life
