The Small Fatigue Crack Growth Behavior of an Aluminum Alloy in a Sodium Chloride Aqueous Solution : Stress Amplitude and Crack Size Dependence
抄録
It is clarified that a stress amplitude dependence exists in the relation between the small corrosion fatigue crack growth rate and the stress intensity factor range. This stress amplitude dependence observed in an aluminum alloy shows an opposite tendency to those reported by Gangloff whose experiment was carried out with high strength steel in a simlar environment as the one in this experiment. It is considered that this peculiar phenomenon of small corrosion fatigue crack growth is strongly influenced by the transport process of dissolved oxygen between the bulk solution outside of the crack and the local solution in the neighborhood of the crack tip.
雑誌名
日本機械学會論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A
アルミニウム合金の3%食塩水中における疲労微小表面き裂の進展挙動 : 応用振幅並びにき裂寸法依存症
機械論文A88-2075.pdf
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