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RESEARCH PAPERS

Fatigue and Corrosion-Fatigue Crack Propagation in Intermediate-Strength Aluminum Alloys

[+] Author and Article Information
T. W. Crooker

Strength of Metals Branch, Metallurgy Division, Naval Research Laboratory, Washington, D. C.

J. Eng. Mater. Technol 95(3), 150-156 (Jul 01, 1973) (7 pages) doi:10.1115/1.3443142 History: Received December 06, 1972; Online August 17, 2010

Abstract

Fatigue crack propagation studies were conducted on a variety of intermediate-strength aluminum alloys under high stress-intensity range cycling (ΔK > 10 ksiin.). Tests were conducted in ambient room air and in 3.5-percent NaCl saltwater environments. Data are presented on log-log coordinates in terms of fatigue crack growth rate (da/dN) as a function of the stress-intensity factor range (ΔK). Comparisons are made among similar crack propagation data for steel and titanium alloys.

Copyright © 1973 by ASME
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