TY - JOUR
T1 - Fatigue crack propagation characteristics in SiCp/6061-T6 composite
AU - Kobayashi, Toshiro
AU - Iwanari, Hiroyoshi
AU - Hakamata, Shinji
AU - Niinomi, Mitsuo
AU - Toda, Hiroyuki
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1991
Y1 - 1991
N2 - The effect of volume fraction of SiC particles on the fatigue crack propagation characteristics of 6061 aluminum alloys reinforced with SiC particles (SiCp/6061-T6 composites) manufactured by powder metallurgy was investigated. In a higher stress intensity range, unstable fatigue crack propagation was found as the threshold stress intensity range ΔKth and ΔKeff.th increased with increasing content of SiC particles. ΔKeff.th is suggested to be solely a function of the mean SiC particle size and to be independent of the volume fraction. This implies that for near-threshold crack extension, the maximum plastic zone size at the crack tip must exceed the mean SiC particle size.
AB - The effect of volume fraction of SiC particles on the fatigue crack propagation characteristics of 6061 aluminum alloys reinforced with SiC particles (SiCp/6061-T6 composites) manufactured by powder metallurgy was investigated. In a higher stress intensity range, unstable fatigue crack propagation was found as the threshold stress intensity range ΔKth and ΔKeff.th increased with increasing content of SiC particles. ΔKeff.th is suggested to be solely a function of the mean SiC particle size and to be independent of the volume fraction. This implies that for near-threshold crack extension, the maximum plastic zone size at the crack tip must exceed the mean SiC particle size.
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U2 - 10.2320/jinstmet1952.55.1_72
DO - 10.2320/jinstmet1952.55.1_72
M3 - Article
AN - SCOPUS:0025852889
VL - 55
SP - 72
EP - 78
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
SN - 0021-4876
IS - 1
ER -