Size Effect On Fatigue Strength Of Shot Peened Carburized Steel

Author:  Hisamatsu, S. and Kanazawa, T.
Source:  Conf Proc: ICSP-3, (p.517-524)
Doc ID:  1987089
Year of Publication:  1987
Abstract:  
There has been an increasing need for stronger and more reliable carburized transmission and axle gears because of motor vehicles getting lighter and engines becoming bigger. As a result, carburized gears strengthened by shot peening have come into wide use. But it is not a well known fact that the influence of size of shot peened carburized steel is very big on the fatigue strength. This paper discusses how the sizes and stress concentration of the shot peened carburized steel affect fatigue strength in a rotating bending fatigue test.