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RESEARCH PAPERS

Fatigue Crack Propagation in A533B Steels

[+] Author and Article Information
A. D. Wilson

Research Division, Lukens Steel Company, Coatesville, Pennsylvania

J. Pressure Vessel Technol 99(3), 459-469 (Aug 01, 1977) (11 pages) doi:10.1115/1.3454560 History: Received July 22, 1976; Online October 25, 2010

Abstract

The influence of steelmaking practice on the fatigue crack propagation behavior of A533B low alloy plate steels is examined. Conventional practice, calcium-treated and electroslag-remelted steels were investigated in 6 specimen orientations. A significant improvement in the isotropy of fatigue crack growth rates and a consistent overall improvement in fatigue crack growth rate were found in going from the conventional practice, to the calcium-treated, to the electroslag-remelted materials. The fatigue crack growth rate differences within a material and between materials were attributed to material differences in nonmetallic inclusion quantities and morphologies.

Copyright © 1977 by ASME
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