中国铁道科学2012，Vol.33Issue(1)：93-97,5.DOI:10.3969/j.issn.1001-4632.2012.01.14
室温下高速车轮钢断裂韧性与冲击韧性的关系
The Relationship between Fracture Toughness and Impact Toughness of High-Speed Wheel Steel at Room Temperature
摘要
Abstract
The fracture Toughness of high-speed wheel steel was measured at room temperature through compact tension (CT) specimens heat-treated with different procedures. Charpy V-notched impact specimens were made from the CT specimens with different fracture toughness, respectively. Impact tests were carried out on impact specimens at room temperature. The fracture toughness as well as the fracture surface and microstructure of impact specimens were observed and analyzed. Results show that the fracture toughness increases linearly with the increasing of impact toughness. The fracture modes of both CT specimens and impact specimens are mainly cleavage fractures. The inclusions in wheel steel mainly are Ti (C, N) which have little effect on the fracture toughness and impact toughness at room temperature.关键词
车轮钢/断裂韧性/冲击韧性/解理断裂Key words
Wheel steel/ Fracture toughness/ Impact toughness/ Cleavage fracture分类
交通工程引用本文复制引用
任学冲,李胜军,高克玮,宿彦京,江波,陈刚,赵海..室温下高速车轮钢断裂韧性与冲击韧性的关系[J].中国铁道科学,2012,33(1):93-97,5.基金项目
国家"八六三"计划项目(2009AA03Z505) （2009AA03Z505）
