Effect of Interactive Periods to Corrosion-Fatigue Life on LY12CZ Alloy

Hai Wei Zhang; Yu Ting He; Chao Liu; Li Ming Wu; Hua Ding

doi:10.4028/www.scientific.net/AMM.66-68.96

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 66-68Effect of Interactive Periods to Corrosion-Fatigue...

Effect of Interactive Periods to Corrosion-Fatigue Life on LY12CZ Alloy

Abstract:

To study life differences between pre-corrosion fatigue and corrosion-fatigue test, LY12CZ standard specimens are selected in pre-corrosion fatigue test to get the C(t) curve at first. Then, combining with Miner linear cumulative damage theory, theoretical fatigue life is calculated by simulated corrosion-fatigue interactive process. Compared with actual corrosion-fatigue interactive test, theoretical life is rather conservative. Afterwards, a modified model based on C(t) curve method and actual interactive test at different periods of specific flight strength is established. The result shows that the modified C(t) curve method is in good agreement with corrosion-fatigue interactive test.

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Periodical:

Applied Mechanics and Materials (Volumes 66-68)

Pages:

96-101

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.66-68.96

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Online since:

July 2011

Authors:

Hai Wei Zhang, Yu Ting He, Chao Liu, Li Ming Wu, Hua Ding

Keywords:

Corrosion Fatigue Life, Interactive Period, LY12CZ Alloy

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