EBSP在预测在役金属材料剩余寿命中的应用  

Application of EBSP to Prediction of Residual Life of Inservice Material

作　　者：钟振前[1] 朱衍勇[1] 于兆斌 雷方敏[1] 董毅[1] 于桂玲[1] 司红[1] 

机构地区：[1]钢铁研究总院分析测试研究所,北京100081 [2]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001

出　　处：《物理测试》2006年第1期31-34,共4页Physics Examination and Testing

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.

关 键 词：BSP 损伤空洞密度 ∑3亚晶界结构 剩余寿命 

分 类 号：TG115.5[金属学及工艺—物理冶金]