Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium 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 th...
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doaj-6803a533058d421e8ab93ad862df34a52020-11-25T00:21:44ZengMDPI AGMetals2075-47012017-10-0171145710.3390/met7110457met7110457Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix CompositesCristina Arévalo0Isabel Montealegre-Melendez1Eva M. Pérez-Soriano2Enrique Ariza3Michael Kitzmantel4Erich Neubauer5Department of Engineering and Materials Science and Transportation, School of Engineering, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Seville, SpainDepartment of Engineering and Materials Science and Transportation, School of Engineering, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Seville, SpainDepartment of Engineering and Materials Science and Transportation, School of Engineering, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Seville, SpainRHP-Technology GmbH, Forschungs- und Technologiezentrum, 2444 Seibersdorf, AustriaRHP-Technology GmbH, Forschungs- und Technologiezentrum, 2444 Seibersdorf, AustriaRHP-Technology GmbH, Forschungs- und Technologiezentrum, 2444 Seibersdorf, AustriaThis 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.https://www.mdpi.com/2075-4701/7/11/457in situ titanium compositesmicrostructure analysisTiB precipitates |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cristina Arévalo Isabel Montealegre-Melendez Eva M. Pérez-Soriano Enrique Ariza Michael Kitzmantel Erich Neubauer |
spellingShingle |
Cristina Arévalo Isabel Montealegre-Melendez Eva M. Pérez-Soriano Enrique Ariza Michael Kitzmantel Erich Neubauer Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites Metals in situ titanium composites microstructure analysis TiB precipitates |
author_facet |
Cristina Arévalo Isabel Montealegre-Melendez Eva M. Pérez-Soriano Enrique Ariza Michael Kitzmantel Erich Neubauer |
author_sort |
Cristina Arévalo |
title |
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites |
title_short |
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites |
title_full |
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites |
title_fullStr |
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites |
title_full_unstemmed |
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites |
title_sort |
study of the influence of tib content and temperature in the properties of in situ titanium matrix composites |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2017-10-01 |
description |
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. |
topic |
in situ titanium composites microstructure analysis TiB precipitates |
url |
https://www.mdpi.com/2075-4701/7/11/457 |
work_keys_str_mv |
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