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Article

Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites

1
Department of Engineering and Materials Science and Transportation, School of Engineering, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Seville, Spain
2
RHP-Technology GmbH, Forschungs- und Technologiezentrum, 2444 Seibersdorf, Austria
*
Author to whom correspondence should be addressed.
Metals 2017, 7(11), 457; https://doi.org/10.3390/met7110457
Received: 27 September 2017 / Revised: 20 October 2017 / Accepted: 20 October 2017 / Published: 27 October 2017
(This article belongs to the Special Issue Metal Matrix Composites)
This work focuses on the study of the microstructure, hardening, and stiffening effect caused by the secondary phases formed in titanium matrices. These secondary phases originated from reactions between the matrix and boron particles added in the starting mixtures of the composites. Not only was the composite composition studied as an influencing factor in the behaviour of the composites, but also different operational temperatures. Three volume percentages of boron content were tested (0.9 vol %, 2.5 vol %, and 5 vol % of amorphous boron). The manufacturing process used to produce the composites was inductive hot pressing, which operational temperatures were between 1000 and 1300 °C. Specimens showed optimal densification. Moreover, microstructural studies revealed the formation of TiB in various shapes and proportions. Mechanical testing confirmed that the secondary phases had a positive influence on properties of the composites. In general, adding boron particles increased the hardness and stiffness of the composites; however rising temperatures resulted in greater increases in stiffness than in hardness. View Full-Text
Keywords: in situ titanium composites; microstructure analysis; TiB precipitates in situ titanium composites; microstructure analysis; TiB precipitates
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MDPI and ACS Style

Arévalo, C.; Montealegre-Melendez, I.; Pérez-Soriano, E.M.; Ariza, E.; Kitzmantel, M.; Neubauer, E. Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites. Metals 2017, 7, 457. https://doi.org/10.3390/met7110457

AMA Style

Arévalo C, Montealegre-Melendez I, Pérez-Soriano EM, Ariza E, Kitzmantel M, Neubauer E. Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites. Metals. 2017; 7(11):457. https://doi.org/10.3390/met7110457

Chicago/Turabian Style

Arévalo, Cristina; Montealegre-Melendez, Isabel; Pérez-Soriano, Eva M.; Ariza, Enrique; Kitzmantel, Michael; Neubauer, Erich. 2017. "Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites" Metals 7, no. 11: 457. https://doi.org/10.3390/met7110457

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