TY - JOUR
T1 - Effect of reinforcement volume fraction on the thermo-mechanical fatigue behavior of SiCW/6061Al composites
AU - Qian, L. H.
AU - Wang, Z. G.
AU - Toda, H.
AU - Kobayashi, T.
N1 - Funding Information:
This work was subsidized with the special Funds for the Major State Basic Research Projects under Grant No. G19990650.
PY - 2003/9/25
Y1 - 2003/9/25
N2 - 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.
AB - 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.
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U2 - 10.1016/S0921-5093(03)00260-0
DO - 10.1016/S0921-5093(03)00260-0
M3 - Article
AN - SCOPUS:0043157298
SN - 0921-5093
VL - 357
SP - 240
EP - 247
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 1-2
ER -