Ren Xue-chong, Li Shengjun, Gao Kewei, Su Yanjing, Jiang Bo, Chen Gang, Z. Hai
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引用次数: 1
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.
期刊介绍：
China Railway Science (founded in 1979, a bimonthly journal) was founded by Academician Mao Yisheng and has grown up in the context of reform and opening up. This journal is dedicated to serving the modernisation of China's railways, promoting academic research and exchanges, showcasing scientific and technological innovations, and cultivating high-level talents. It has published a large number of original and innovative academic papers, which have had a far-reaching impact on the field of railway and urban rail transit, and has become an important academic exchange platform of China Railway Research Institute Group Co.
The journal contains scientific papers, abstracts of doctoral dissertations, results briefs, scientific and technological information, covering theoretical research and practice in civil engineering, rolling stock, communication signals and other disciplines. According to the data of 2021, it has an outstanding performance in terms of literature volume and citations on China Knowledge Network and Wanfang Data Knowledge Service Platform.
China Railway Science is included in many famous databases at home and abroad, including American Engineering Index (Ei Compendex), Chinese Core Journals, China Academic Journals Comprehensive Evaluation Database, China Journal Square Science and Technology Double-Effective Journals, CNKI Chinese Journals Full-Text Database, and Wanfang Data-Digital Journals Group, Cambridge Scientific Abstracts: Engineering and Technology, Japan Science and Technology Agency (JSTA) database, China Science Citation Database (CSCD), RCCSE China Authoritative Academic Journals A+, China's leading scientific and technical journals, China's top scientific and technical journals, China's top scientific and technical journals, China's science and technology core journals, VIP Chinese scientific and technical journals database, Science Abstracts of the United Kingdom (SAINSPEC) (SAINSPEC), Dutch Scopus database (Scopus), Russian Abstracts Journal (AJ), etc., which shows its important position and international influence in the academic world.
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