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- W2359335144 abstract "The alternate experiment of corrosion and fatigue is performed for aviation LY12-CZ aluminum alloy specimen.Under the two kinds of action of corrosion+fatigue and fatigue+corrosion+fatigue,the effect on fatigue characteristic and fracture mechanics discrepancy of specimens are analyzed using the conditions of several temperatures and different durations.The discussion based on the testing results shows that the total fatigue lives of fatigue+corrosion+fatigue specimens are longer than corrosion+fatigue specimens under the same corrosion condition,and the increasing amplitude of fatigue life decreases with the increase of the initial fatigue life.The microcracks and intrusions/extrusions produced at the initial fatigue blunted by corrosion are the major reasons for increased fatigue life.It seems that a modest amount of corrosion actually has a beneficial effect on the material's micro-damage and fatigue life by blunting of microcracks under the action offatigue+corrosion+fatigue.The micro-damage of fatigue is removed and then substituted by corrosion pits when badly corrosion(for example,corrosion time 40 h,temperature 60 ℃).The effect on fatigue life if fatigue and corrosion are sequentially intermittent is indistinctive." @default.
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- W2359335144 date "2012-01-01" @default.
- W2359335144 modified "2023-09-25" @default.
- W2359335144 title "Research on Fatigue Characteristic and Fracture Mechanics of Aluminum Alloy under Alternate Action of Corrosion and Fatigue" @default.
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