Metallurgical and Materials Transactions A

, Volume 43, Issue 9, pp 3293–3299

A Correlation Between Failure Angle and Constituent for Al-AlN Composites Under Uniaxial Tensile Conditions


DOI: 10.1007/s11661-012-1125-5

Cite this article as:
Yu, P., Schaffer, G.B. & Qian, M. Metall and Mat Trans A (2012) 43: 3293. doi:10.1007/s11661-012-1125-5


Al-AlN composites with different AlN reinforcement fractions and porosity were fabricated through nitridation of laser-sintered AA 6061 powder followed by infiltration with AA 6061. Their failure behaviors were investigated under uniaxial tensile loading conditions. Tensile testing and fractography indicate that the fracture mode changes gradually from ductile to brittle fracture with increasing AlN reinforcement or porosity. An analysis of the fractured Al-AlN tensile samples reveals that the failure surface angle, θ, is dictated by the volume fraction of the matrix, fm, in a form of tan θ = fm5.5.

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2012

Authors and Affiliations

  1. 1.The University of Queensland, School of Mechanical and Mining Engineering, ARC Centre of Excellence for Design in Light MetalsBrisbaneAustralia
  2. 2.The University of Queensland, Faculty of Engineering, Architecture and Information Technology, ARC Centre of Excellence for Design in Light MetalsBrisbaneAustralia