中国计量大学学报2017，Vol.28Issue(2)：176-184,9.DOI:10.3969/j.issn.2096-2835.2017.02.007
典型金属材料高温蠕变剩余寿命评价方法
Assessment of creep residual life for typical metal materialsat elevated temperatures
摘要
Abstract
High temperature creep is one of the main causes for the failure of metal structures, and the evaluation of the high temperature creep life of metal materials is an important part of industrial safety production.Three creep life evaluation methods, namely, the persistent strength experiment extrapolation method, the microstructure analysis method and the ultrasonic measurement method, were introduced.The principle, the characterization parameters, the research progress both in China and overseas, the advantages and disadvantages were summarized.It concluded that the application of these methods to the evaluation of the high temperature creep state and the residual life prediction is the main method adopted at present.Based on the analysis and comparison of these methods, we point out that the nonlinear ultrasonic technology has the advantages of high sensitivity and nondestructive online testing, which is the direction of the development of high temperature creep evaluation in the future.关键词
高温蠕变/剩余寿命评价方法/非线性超声Key words
high temperature creep/residual life evaluation method/nonlinear ultrasonic分类
矿业与冶金引用本文复制引用
谷涛,胡斌,王强,孙亮..典型金属材料高温蠕变剩余寿命评价方法[J].中国计量大学学报,2017,28(2):176-184,9.基金项目
国家重点研发计划重点专项(No.2016YFC0801903). （No.2016YFC0801903）
