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Materials 2016, 9(11), 919; doi:10.3390/ma9110919

Influence of Sintering Temperature on the Microstructure and Mechanical Properties of In Situ Reinforced Titanium Composites by Inductive Hot Pressing

1
Department of Engineering and Materials Science and Transportation, School of Engineering, University of Seville, Camino de los Descubrimientos s/n, Seville 41092, Spain
2
RHP-Technology GmbH, Forschungs und Technologiezentrum, Seibersdorf 2444, Austria
3
Department of Computer Languages and Systems, University of Seville, Avenida Reina Mercedes s/n, Seville 41012, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Mark T. Whittaker
Received: 17 October 2016 / Revised: 31 October 2016 / Accepted: 7 November 2016 / Published: 11 November 2016
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [6901 KB, uploaded 11 November 2016]   |  

Abstract

This research is focused on the influence of processing temperature on titanium matrix composites reinforced through Ti, Al, and B4C reactions. In order to investigate the effect of Ti-Al based intermetallic compounds on the properties of the composites, aluminum powder was incorporated into the starting materials. In this way, in situ TixAly were expected to form as well as TiB and TiC. The specimens were fabricated by the powder metallurgy technique known as inductive hot pressing (iHP), using a temperature range between 900 °C and 1400 °C, at 40 MPa for 5 min. Raising the inductive hot pressing temperature may affect the microstructure and properties of the composites. Consequently, the variations of the reinforcing phases were investigated. X-ray diffraction, microstructural analysis, and mechanical properties (Young’s modulus and hardness) of the specimens were carried out to evaluate and determine the significant influence of the processing temperature on the behavior of the composites. View Full-Text
Keywords: titanium matrix composites; boron carbide; TixAly intermetallic; inductive hot pressing titanium matrix composites; boron carbide; TixAly intermetallic; inductive hot pressing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Arévalo, C.; Montealegre-Meléndez, I.; Ariza, E.; Kitzmantel, M.; Rubio-Escudero, C.; Neubauer, E. Influence of Sintering Temperature on the Microstructure and Mechanical Properties of In Situ Reinforced Titanium Composites by Inductive Hot Pressing. Materials 2016, 9, 919.

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