High-temperature mechanical properties of aluminium alloys reinforced with titanium diboride (TiB2) particles

Oñoro Lopez, Javier (2011). High-temperature mechanical properties of aluminium alloys reinforced with titanium diboride (TiB2) particles. "Rare Metals", v. 30 (n. 2); pp. 200-205. ISSN 1001-0521. https://doi.org/10.1007/s12598-011-0224-6.

Description

Title: High-temperature mechanical properties of aluminium alloys reinforced with titanium diboride (TiB2) particles
Author/s:
  • Oñoro Lopez, Javier
Item Type: Article
Título de Revista/Publicación: Rare Metals
Date: 2011
ISSN: 1001-0521
Volume: 30
Subjects:
Freetext Keywords: metal-matrix composites; aluminium; high-temperature properties; titanium diboride
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería y Ciencia de los Materiales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The physical and mechanical properties of metal matrix composites were improved by the addition of reinforcements. The mechanical properties of particulate-reinforced metal-matrix composites based on aluminium alloys (6061 and 7015) at high temperatures were studied. Titanium diboride (TiB2) particles were used as the reinforcement. All the composites were produced by hot extrusion. The tensile properties and fracture characteristics of these materials were investigated at room temperature and at high temperatures to determine their ultimate strength and strain to failure. The fracture surface was analysed by scanning electron microscopy. TiB2 particles provide high stability of the aluminium alloys (6061 and 7015) in the fabrication process. An improvement in the mechanical behaviour was achieved by adding TiB2 particles as reinforcement in both the aluminium alloys. Adding TiB2 particles reduces the ductility of the aluminium alloys but does not change the microscopic mode of failure, and the fracture surface exhibits a ductile appearance with dimples formed by coalescence.

More information

Item ID: 11643
DC Identifier: http://oa.upm.es/11643/
OAI Identifier: oai:oa.upm.es:11643
DOI: 10.1007/s12598-011-0224-6
Official URL: http://link.springer.com/article/10.1007%2Fs12598-011-0224-6?LI=true
Deposited by: Memoria Investigacion
Deposited on: 29 Nov 2012 12:07
Last Modified: 20 Apr 2016 19:40
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