Title: Powder-materials impact on nanoparticle-reinforced Ti-6Al-4V matrix composites produced via inductive hot pressing

Authors: Isabel Montealegre-Meléndez; Erich Neubauer; Cristina Arévalo; Eva Maria Perez-Soriano; Michael Kitzmantel

Addresses: Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n. 41092, Sevilla, Spain ' RHP-Technology GmbH & Co. KG, Forschungs- und Technologiezentrum, A-2444 Seibersdorf, Austria ' Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n. 41092, Sevilla, Spain ' Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n. 41092, Sevilla, Spain ' RHP-Technology GmbH & Co. KG, Forschungs- und Technologiezentrum, A-2444 Seibersdorf, Austria

Abstract: This paper addresses the optimal manufacture of titanium alloy composites via inductive hot pressing, and studies the influence of nanosized reinforcement and matrix powders on the final properties of the titanium-based composites. Before hot consolidation, two types of Ti-6Al-4V powders were mixed with various percentages of nano-diamonds. After inductive hot pressing at 900°C and 950°C, characterisation of the specimens took place, which revealed significant differences in the final properties of the composites produced. Further to the well-known effect of how oxygen content in the initial powder considerably affects the properties of the specimens, the influence of the nano-diamonds in the microstructure is also evaluated.

Keywords: titanium alloys; nano-diamonds; metal matrix composites; inductive hot pressing; iHP.

DOI: 10.1504/IJMPT.2018.090815

International Journal of Materials and Product Technology, 2018 Vol.56 No.3, pp.207 - 219

Accepted: 08 Nov 2016
Published online: 28 Mar 2018 *

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