K-0528 Al_2O_3/A6061合金の疲労き裂特性に及ぼすアルミナ短繊維体積含有率の影響(S04-4 非鉄金属の組織と疲労特性)(S04 金属材料の組織と疲労強度信頼性)

概要

論文の詳細を見る
The effect of Al_2O_3 short fiber volume fraction on the fatigue crack initiation and growth of 6061 Al matrix composites was investigated. It was found that the fatigue strength at 10^7 cycles increased with an increase in volume fraction of short fibers. The surface replicas of the gage section of the specimen were taken throughout the fatigue tests to characterize the onset of crack initiation. As a result of the observation, the crack growth paths were related to the distribution of the short fibers. The cracks initiated at the part in which the short fibers were perpendicular to the compressive direction of manufacture. Moreover, the crack nucleation sites were also at the clusters of the fibers.
一般社団法人日本機械学会の論文
2001-08-22