Fatigue Crack Propagation of Magnesium Alloy and Aluminum Alloy in Biaxial Stress Fields

Yasumi Ito; Akira Shimamoto

doi:10.4028/www.scientific.net/KEM.321-323.599

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 321-323Fatigue Crack Propagation of Magnesium Alloy and...

Fatigue Crack Propagation of Magnesium Alloy and Aluminum Alloy in Biaxial Stress Fields

Abstract:

In this research, fatigue crack propagation tests of magnesium alloy AZ31B and aluminum alloy 2024T3 were conducted under conditions of biaxial and uniaxial loading by using a cruciform specimen in a biaxial fatigue machine, in order to investigate the effect of non-singular stress cycling. From these comprehensive experiments, in the magnesium alloy, the remarkable effect was found in the specific biaxial load stress ratio RB (= σx 0/σy 0) on KI-da/dN relation. On the other hand, in the aluminum alloy, it was confirmed that there is no influence of a RB on KI-da/dN relation.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

599-602

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.599

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Online since:

October 2006

Authors:

Yasumi Ito, Akira Shimamoto

Keywords:

Aluminium Alloy, Biaxial Stress, Crack Propagation, Fatigue, Magnesium Alloy

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References

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DOI: 10.4028/www.scientific.net/kem.297-300.1559

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