The effect of reinforcement clustering on the steady-state creep behaviors of discontinuous metal matrix composite: A possible origin of ‘anomalously high’ stress exponent

✍ Scribed by W.J. Lee; S.K. Jo; I.M. Park; Y.H. Park

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 810 KB
• Volume: 528
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/j.msea.2011.02.038

✦ Synopsis

The effect of reinforcement clustering on the steady-state creep behaviors of unidirectional SiC whisker reinforced aluminum matrix composite was investigated using finite element models with two different microstructures: Homogeneous microstructure was made up of a random dispersion of whiskers and the heterogeneous (clustered) one was idealized using hierarchical multiscale technique with 2D microstructure image of this material. Based on the numerical results, a possible mechanism for the 'anomalously high' creep stress exponent was proposed in the light of current knowledge.