Transient Photocurrents in Cadmium Sulfide

Abstract

As is known the fatigue strength of a metal is improved by understressing ~nd the cause has been attributed to the diffusion of foreign atoms to the tips of fatigue cracks.The authors however, wish to propose another explanation of the phenomen~ which strengthen a metal by understressing.Experimental results for steels indicate t?at two ,kinds of fat~e cracks are produced generally by cyclic stressmg; the one IS progressive and the other stationary. The strain distribution at [This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to ] IP: 155.33.16.124 On