Author(s)

P. Krull, T. Nitschke-Pagel & H. Wohlfahrt

Abstract

Recent investigations on the influence of mechanical and thermal loading on the stability of residual stresses in surface layers have shown a different relaxation behaviour of shot peened and high pressure water peened specimens. For this reason a stainless steel of type 316 Ti (1.4571) after shot peening and also high pressure water peening was investigated with the aim to characterize the microstructure of near surface areas by TEM-investigations. With the presented experimental results the effect of peening processes can be evaluated. 1 Introduction The strength and the hardness of steels can be increased by the induction of near surface plastic deformations due to shot peening or high pressure water peening processes. The aim of t

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