Cold spraying of in situ produced TiB2–Cu nanocomposite powders |
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| Affiliation: | 1. Research Center for Machine Parts and Materials Processing, University of Ulsan, Ulsan 680-749, South Korea;2. Institute of Solid State Chemistry and Mechanochemistry, SB RAS, Kutateladze strasse, 18, Novosibirsk 630128, Russia;3. Institute of Theoretical and Applied Mechanics, SB RAS, Institutskaya strasse, 4/1 Novosibirsk 630090, Russia;4. Ecole Nationale d’Ingénieurs de Saint-Etienne, 58 rue Jean Parot, 42023 Saint-Etienne cedex 2, France;1. ICB UMR 6303, CNRS, Univ. Bourgogne Franche-Comté, UTBM, F-90100 Belfort, France;2. State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, China;1. Division of Mechanical Design Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Republic of Korea;2. Energy System Technology Center, Korea Institute of Industrial Technology, Cheonan, Chungcheongnam 331-822, Republic of Korea;1. Trinity College Dublin, The University of Dublin, Department of Mechanical and Manufacturing Engineering, Parsons Building, Dublin 2, Ireland;2. Université Bourgogne Franche-Comté, Université de technologie Belfort-Montbéliard, LERMPS, 90010, Belfort, France;3. Netme Centre, Institute of Materials Science and Engineering, Brno University of Technology, Technicka 2896/2, 616 69, Brno, Czechia;4. University College Dublin, School of Mechanical and Materials Engineering, Belfield, Dublin 4, Ireland;5. University of Nottingham, Division of Materials, Mechanics and Structure, Nottingham NG7 2RD, UK;1. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China;2. State Key Laboratory for Strength and Vibration, Department of Engineering Mechanics, Xi’an Jiaotong University, Shaanxi 710049, China |
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| Abstract: | The goal of this work was to study the development of microstructure of the coatings cold sprayed from nanocomposite powders TiB2–43 vol.%-Cu containing titanium diboride particles 50–100 nm in size. Titanium diboride phase was in situ produced in a copper matrix using high-energy mechanical milling of Ti, B and Cu powders and self-propagating high-temperature synthesis. The coatings were fabricated on a copper substrate. The microstructure of the coatings was studied by scanning electron microscopy and energy dispersive spectroscopy. Due to low-temperature conditions of spraying, nanostructured coatings were produced retaining the microstructure of the nanocomposite powder being sprayed. Despite the high content of titanium diboride and the difference in plasticity of the phases, the coatings were fully dense and composed of closely packed powder particles. Considering the results of this study, cold spraying of nanocomposite mechanically milled powders can be recommended as a promising way for fabrication of nanostructured coatings. |
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