Journal article
Effect of surface finish on high temperature fatigue of a nickel based super alloy
Abstract
The influence of residual stresses induced by machining, scratches and different processes of surface improvement, on fatigue resistance has been studied on Waspaloy at 426°C under load control. Tests were performed on single edge notched samples. Scratches on notched samples exhibited a much larger effect, reducing fatigue life by an order of magnitude. Surface improvement processes, like blending of scratches and shot peening, substantially …
Authors
Hussain K; Wilkinson DS; Embury JD
Journal
International Journal of Fatigue, Vol. 31, No. 4, pp. 743–750
Publisher
Elsevier
Publication Date
April 2009
DOI
10.1016/j.ijfatigue.2008.03.033
ISSN
0142-1123