Structures and properties of TiAlCrN coatings deposited on Ti(C,N)-based cermets with various WC contents |
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| Affiliation: | 1. School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, PR China;2. College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China;3. School of Mechanical Engineering, Guizhou University, Guizhou 550501, PR China;1. Department of Mechanical Engineering, McMaster University, 1280 Main St., W. Hamilton, Ontario L8S 4L7, Canada;2. Kobe Steel Ltd., Kobe, Hyogo 651-2271, Japan;3. Biointerfaces Institute, McMaster University, 1280 Main St., W. Hamilton, Ontario L8S 4L7, Canada;4. Railway Transport Research Institute, Moscow 29851, Russia;1. Institute of Materials Science and Technology, TU Wien, A-1060 Vienna, Austria;2. State Key Laboratory of Powder Metallurgy, Central South University, 410083 Changsha, China;3. Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, A-8700 Leoben, Austria;1. Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic;2. SEG-CEMUC, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal;3. nCATS, Highfield Campus, University of Southampton, Southampton SO17 1BJ, United Kingdom |
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| Abstract: | In this paper, the Ti(C,N)-based cermets with various WC contents were used as the substrates of TiAlCrN coatings. The influence of WC addition on the structures and properties of the coatings was investigated. Besides, cutting tests on the coated cermet inserts were conducted under different conditions. The results indicated that the cermet substrates with finer grains provided more nucleation to the coatings. The grain size of the coating decreased with increasing WC contents in the substrate. W diffused from the substrates to coatings, which deteriorated the adhesion between TiAlCrN coatings and the cermet substrates. The coated cermet inserts presented better cutting performance, when WC was added to the substrates. However, the cutting performance of the coated cermet inserts was weaken when the addition of WC was more than 10 wt%. |
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