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Metals 2019, 9(2), 141;

Inconel 625/TiB2 Metal Matrix Composites by Direct Laser Deposition

Laboratory of high-energy systems and new technologies, National Research Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia
Department of laser technologies, Peter the Great Saint-Petersburg Polytechnic University, 195251 Saint-Petersburg, Russia
Laboratory of laser and additive technologies, Saint-Petersburg State Marine Technical University, 190121 Saint-Petersburg, Russia
Institute of iron and steel technology, Technological University Bergakademie Freiberg, 09599 Freiberg, Germany
Author to whom correspondence should be addressed.
Received: 18 December 2018 / Revised: 23 January 2019 / Accepted: 24 January 2019 / Published: 28 January 2019
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This work presents results in the field of synthesis of new metal matrix composites with matrix NiTi and particles TiB2, and their use as additives to fabricate metal matrix composites based on the Inconel 625 alloy. NiTi-TB2 powders were obtained using self-propagating high-temperature synthesis. Composite NiTi-TiB2 particles were spheroidized on a high-frequency induction plasmatron. Composite NiTi-TB2 particles were mixed with metallic Inconel 625 powder with particle sizes of 50–150 µm. We used direct laser deposition by means of mixture of powders to grow samples with different contents of ceramics in the metal matrix. The process of direct laser deposition during the experiment was investigated. We have determined the peculiarities of the formation of the structure in metal matrix composites with different contents of titanium diboride. We have demonstrated the possibility of using Direct Laser Deposition (DLD) for fabricating items from ceramic metal materials. We have determined promising fields of further research for the purpose of obtaining efficient metal matrix composites using additive manufacturing technologies. View Full-Text
Keywords: additive technologies; synthesis; powder; composites materials; structure additive technologies; synthesis; powder; composites materials; structure

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Promakhov, V.; Zhukov, A.; Ziatdinov, M.; Zhukov, I.; Schulz, N.; Kovalchuk, S.; Dubkova, Y.; Korsmik, R.; Klimova-Korsmik, O.; Turichin, G.; Perminov, A. Inconel 625/TiB2 Metal Matrix Composites by Direct Laser Deposition. Metals 2019, 9, 141.

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