基于Abductive网络的镍基单晶高温合金蠕变断裂寿命预测  

Prediction of Creep Rupture Life of Single Crystal Ni-Based Superalloy by Abductive Network

作　　者：周海滔[1] 轩福贞[1] 王正东[1] 

机构地区：[1]华东理工大学承压系统安全科学教育部重点实验室,上海200237

出　　处：《机械工程材料》2009年第12期16-19,23,共5页Materials For Mechanical Engineering

基　　金：国家"863"高技术计划资助项目(2006AA04Z413);上海市重点学科建设资助项目(B503)

摘　　要：通过建立镍基单晶高温合金的蠕变断裂寿命与合金成分、试验温度以及试验应力的4层Abductive网络预测模型,对CMSX-4与CMSX-10合金进行了不同试验条件下的寿命预测,并用试验所得的合金lgt_r-lgσ曲线进行了验证。结果表明:Abductive网络具有高的准确性与很好的适用性,能够准确预测不同成分镍基单晶高温合金的蠕变断裂寿命。Through establishment of 4 layers Abductive network prediction model between the creep rupture lives of single crystal Ni-based superalloy and alloy composition, creep stress and creep temperature, life prediction of CMSX-4 and CMSX-10 alloys under different experimental conditions were operated, which was verified using the lgtτ-lgσ curves obtained by the testing. The results show that the Abduetive network could accurately predict the creep rupture life of different single crystal Ni base superalloys.

关 键 词：镍基单晶高温合金 Abductive网络 蠕变断裂寿命 

分 类 号：TG111[金属学及工艺—物理冶金] TG146.1[金属学及工艺—金属学]