钢的超高周疲劳性能研究现状及发展趋势  

Current Study on Review and Prospects for High Cycle Fatigue Steel

作　　者：何柏林[1] 吕宗敏[1] 吴剑[1] 

机构地区：[1]华东交通大学机电工程学院载运工具与装备教育部重点实验室,江西南昌330013

出　　处：《热加工工艺》2015年第16期7-11,共5页Hot Working Technology

基　　金：国家自然科学基金资助项目(51365014)

摘　　要：综述了国内外钢的超高周疲劳研究进展,包括超高周疲劳的典型特征--"鱼眼",基于断面分析疲劳裂纹萌生和扩展的特征;分析了疲劳机理和相关的模型及探讨影响超高周疲劳的若干因素,如加载频率和环境介质等,并对超高周疲劳未来的研究方向进行了展望。The research status of VHCF steels were summarized, such as the observations on fish-eye, which is one of the typical characteristics in VHCF regime. The characteristics of crack initiation and crack propagation were analyzed based on the fracture surface. The fatigue mechanism and related models were analyzed. Several factors for influencing the VHCF behavior were also discussed such as loading frequency and environmental media. Some prospective aspects of future research in VHCF were proposed.

关 键 词：超高周疲劳 钢 失效机理 影响因素 

分 类 号：TG113.22[金属学及工艺—物理冶金]