文献类型：期刊文献

英文题名：Creep-Fatigue Behaviors and Life Assessments in Two Nickel-Based Superalloys

作者：Wang, Run-Zi[1];Wang, Ji[1];Gong, Jian-Guo[1];Zhang, Xian-Cheng[2];Tu, Shan-Tung[2];Zhang, Cheng-Cheng[3]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, Meilong Rd 130, Shanghai 200237, Peoples R China;[3]Commercial Aircraft Engine Co LTD, Shanghai Engn Res Ctr Commercial Aircraft Engine, AECC, Shanghai 201108, Peoples R China

年份：2018

卷号：140

期号：3

外文期刊名：JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

收录：;EI(收录号：20183205678276);WOS:【SCI-EXPANDED(收录号:WOS:000431719000011)】；

基金：NSFC of China (Grant Nos. 51725503, 51575183). 111 Project.

语种：英文

外文关键词：creep-fatigue; dwell time; strain range; strain ratio; life assessment

摘要：The aim of this paper is to investigate different factors, including dwell time, strain range, and strain ratio on creep-fatigue endurances in nickel-based Inconel 718 and GH4169 superalloys. We also summarize classic approaches for life assessments based on the generalizations of Coffin-Manson equation, linear damage summation (LDS), and strain-range partitioning (SRP) method. Each approach does have some degree of success in dealing with a specific set of creep-fatigue data. In order to evaluate the prediction capabilities of the validated approaches, a Bayesian information criterion (BIC) allowing for maximum likelihood and principle of parsimony is used to select the best performing model.