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An X-Ray Investigation of Fatigue Behavior of Cold Worked Aluminum

Published online by Cambridge University Press:  06 March 2019

R. W. Gould  and
C. F. Pittella
R. W. Gould
Affiliation:
University of Florida, Department of Metallurgy, Gainesville, Florida 32601
C. F. Pittella
Affiliation:
University of Florida, Department of Metallurgy, Gainesville, Florida 32601
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Abstract

Double bending fatigue tests were performed on cold worked 1100 aluminum, with a maximum bending stress varying from 100 to 50% of the yield stress. Variation of residual macrostress from the cold worked state during the fatigue tests was measured by the photographic x-ray diffraction method. A general decrease of this macrostress was observed. Line profile analysis was used to study the change in the mean effective domain size and microstrain. A rate dependence of the increase in the effective domain size with respect to the maximum bending stress was observed. Microhardness and tensile tests were also made on the specimens during the fatigue testing and the results are correlated with the x-ray Parameters.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 16: 'Twenty-First Annual Conference on Applications of X-ray Analysis, August 2-4, 1972 , 1972 , pp. 354 - 366
Copyright
Copyright © International Centre for Diffraction Data 1972

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