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

Abstract:

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

599-602

DOI:

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

Citation:

Y. Ito and A. Shimamoto, "Fatigue Crack Propagation of Magnesium Alloy and Aluminum Alloy in Biaxial Stress Fields", Key Engineering Materials, Vols. 321-323, pp. 599-602, 2006

Online since:

October 2006

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Price:

$35.00

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