WIT Press

Initiation And Growth Behaviours Of A Fatigue Crack In Shot-peened Steel

Price

Free (open access)

Paper DOI

10.2495/SURF970021

Volume

17

Pages

10

Published

1997

Size

1,018 kb

Author(s)

H. Nisitani & K. Fujimura

Abstract

In this paper, rotating bending fatigue tests are carried out in order to clarify the difference of initiation and growth behavior of a crack in shot-peened carbon steel specimens and not-peened ones. The material used is a quenched and tempered carbon steel. The difference between the two is clarified through the successive observations of the specimen surface by the replication technique and the measurements of the residual stress during the fatigue test. The effect of shot-peening on the growth behavior of a crack is discussed based on the fact that it is classified into three parts : the effect in thin damaged layer due to

Keywords