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Title: Influence of Temperature of Shot Peening on Fatigue Life
Author: Shilling-Praetzel, Hegemann, Gomez, Gottstein
Source: Conf Proc: ICSP-5, (p.225-236)
Publication year 1993
Document number: 1993075
Number of pages: 12
Abstract:
This paper addresses the influence of shot peening temperature on micro structure evolution and mechanical properties of spring steel 60SiCr7 in the temperature range
between 20 deg C and 250 deg C. In particular, surface roughness, micro hardness andn local distribution of residual stresses in the surface layer were measured before and
after fatigue tests. Also fracture surfaces were examined in the scanning electron micorscope. It was found that the local distribution of residual stresses in the surface
is drastically changed by shot peening at different temperatures, thus prolonging the fatigue life.
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