Study on relative wear resistance and wear stability of high-speed steel with high vanadium content |
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| Affiliation: | 1. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, PR China;2. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, PR China;1. Tampere University of Technology, Department of Materials Science, Korkeakoulunkatu 6, Tampere, Finland;2. Metso Materials Technology, Tampere, Finland;1. Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, China;2. Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China;3. The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110189, China;4. School of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, China;1. Product Technology, Flat Products, Tata Steel, India;2. National Metallurgical Laboratory, CSIR, India;1. Mechanical Engineering Department, Federal University of Rio Grande, Av. Itália, Km 8, 96203-900, Rio Grande, Rio Grande do Sul, Brazil;2. Mechanical Engineering Department, University of Passo Fundo, P. O. Box 611, 99052-900, Passo Fundo, Rio Grande do Sul, Brazil;3. Metallurgical Engineering Department, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha 99/610, 90035-190, Porto Alegre, Rio Grande do Sul, Brazil;1. Laser Technology Institute, Tianjin Polytechnic University, Tianjin 300387, PR China;2. Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, PR China;3. Institute of Mechanics, Chinese Academy of Sciences, Beijing 10090, PR China |
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| Abstract: | In this work, a new concept of wear stability was put forward by authors, and it was quantitatively expressed by factor of wear stability. Different hardness, impact toughness and retained austenite content high-speed steel with high vanadium content samples were obtained by varying heat treatment conditions. The effects of hardness, impact toughness and retained austenite content on relatively wear resistance and wear stability were studied under abrasive wear condition. Results show that relative wear resistance increases with increasing hardness or decreasing impact toughness, whereas the wear stability rises with the increasing of hardness or impact toughness. The analyzing results reveal that mechanical behaviors are only apparent factors to influence wear behaviors. Relative wear resistance substantially depends on retained austenite content (Ar). At retained austenite content of about 30 vol.%, the relative wear resistance is optimal. However, wear stability is scarcely influenced by retained austenite content, which depends on the maximum changing amount of retained austenite under certain condition (ΔAr) in essence. With increasing ΔAr, wear stability linearly decreases. |
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