Paper Title:
Fatigue Striations and Fissures in 2024-T3 Aluminum Alloy
  Abstract

A study has been made of the striations and fissures developed in the aluminum alloy 2024-T3 during fatigue crack growth. Fissures were found to form on inclined facets. They were uniformly spaced as the result of a shielding process. Striation spacings were in accord with da/dN values at the higher levels of K investigated, but at low K levels striation spacings were larger than the corresponding da/dN values. The percentage of the fracture surface containing striations varied with the K level, ranging from less than 1 % at low K levels to 80 % at higher K levels. The reason for the discrepancy between the spacing of striations and the corresponding da/dN values is discussed.

  Info
Periodical
Materials Science Forum (Volumes 567-568)
Edited by
Pavel Šandera
Pages
397-400
DOI
10.4028/www.scientific.net/MSF.567-568.397
Citation
A.J. McEvily, M. Endo, S. Cho, J. Kasivitamnuay, H. Matsunaga, "Fatigue Striations and Fissures in 2024-T3 Aluminum Alloy", Materials Science Forum, Vols. 567-568, pp. 397-400, 2008
Online since
December 2007
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Price
$32.00
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