Effect of reinforcement volume fraction on the thermo-mechanical fatigue behavior of SiCW/6061Al composites

L. H. Qian, Z. G. Wang, H. Toda, T. Kobayashi

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21 Citations (Scopus)


Thermo-mechanical fatigue (TMF) tests were conducted on the 15 and 28 vol.% SiCW/6061Al composites under temperature cycling between 150 and 300 °C and mechanical strain ranges of 0.004-0.012. The effects of temperature-load phase and volume fraction of SiC whiskers on the TMF behavior were examined. The results showed that cyclic softening occurred in both composites during out-of-phase (OP) and in-phase (IP) TMF. In both composites, tensile mean stress was generated during OP-TMF, whereas compressive mean stress was generated during IP-TMF. The 15% SiCW composite demonstrated a longer life than the 28% SiCW composite in the case of OP-TMF, however, in the case of IP-TMF the fatigue life curves of the two composites passed across each other, i.e. at small strain range level the life of the 15% SiCW composite was longer than that of 28% SiCW composite, while at large strain range level, the life of the former composite became shorter than that of the latter composite.

Original languageEnglish
Pages (from-to)240-247
Number of pages8
JournalMaterials Science and Engineering A
Issue number1-2
Publication statusPublished - Sep 25 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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