Effects of a single tensile overload on fatigue crack growth in a 316L steel

Wheatley, G., Hu, X.Z., and Estrin, Y. (1999) Effects of a single tensile overload on fatigue crack growth in a 316L steel. Fatigue and Fracture of Engineering Materials and Structures, 22. pp. 1041-1051.

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The aim of this study was to investigate the effects of a single tensile overload on subsequent fatigue crack growth in a 316L stainless steel. Fatigue tests were conducted under the plane stress condition, and further supplemented with compliance measurements and field emission scanning electron microscopy (FESEM) observations. Effects of a tensile overload, e.g. initial acceleration and subsequent retardation of fatigue crack growth, were explained and quantified by FESEM and compliance measurements. The FESEM observations suggest that the initial crack growth acceleration stems from void and quasi-cleavage fracture within the fatigue damage zone in the vicinity of the crack tip. Systematic compliance measurements taken during fatigue crack growth suggest that the overall crack growth retardation is related to strain hardening and residual compressive stress produced by the plastic deformation associated with the tensile overload.

Item ID: 58770
Item Type: Article (Research - C1)
ISSN: 1460-2695
Copyright Information: © 1999 Blackwell Science Ltd.
Funders: Rio Tinto, University of Western Australia
Date Deposited: 11 Dec 2019 01:15
FoR Codes: 09 ENGINEERING > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified @ 100%
SEO Codes: 86 MANUFACTURING > 8614 Machinery and Equipment > 861403 Industrial Machinery and Equipment @ 100%
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