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

Abstract:

Article Preview

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

Export:

Price:

$35.00

[1] H. Kitagawa, R. Yuuki and K. Tohgo: Fatigue of Engineering Materials and Structures Vol. 2 (1979), pp.195-206.

[2] A. F. Liu, J. E. Allison, D. F. Dittner and J. R. Yamane: ASTM STP Vol. 677 (1979), pp.5-22.

[3] K. J. Mille: Metal Sci. Vol. 11 (1977), pp.432-438.

[4] T. Hoshide and K. Tanaka: Fatigue of Engineering Materials and Structures Vol. 4, No. 4 (1981), pp.355-366.

[5] Y. Itoh and A. Shimamoto: Key Engineering Materials Vols. 270-273 (2004), pp.1246-1253.

[6] Y. Itoh and A. Shimamoto: Materials Science Forum Vols. 488-489 (2005), pp.859-864.

[7] Y. Itoh and A. Shimamoto: Key Engineering Materials Vols. 297-300 (2005), pp.1559-1564 Fig. 7 Relation between crack propagation rate and biaxial load stress ratio.

In order to see related information, you need to Login.