Topic
Peening
About: Peening is a research topic. Over the lifetime, 5538 publications have been published within this topic receiving 73073 citations.
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TL;DR: In this paper, a comparative study on the effects of bulk deformation and surface-induced plastic deformation on the fatigue, corrosion behaviour and corrosion fatigue of AA5083 was conducted.
Abstract: This is a comparative study on the effects of bulk plastic deformation and surface-induced plastic deformation on the fatigue, corrosion behaviour and corrosion fatigue of AA5083. Bulk severe plastic deformation was performed through rotary swaging, whereas surface-induced plastic deformation was conducted by applying shot peening and ball-burnishing. Surface and near-surface properties such as surface topography, microhardness and residual compressive stresses were documented. In comparison to the as-received reference condition, results of potentiodyanmic polarization referred to a better corrosion resistance of the rotary swaged material, while both shot peening and ball-burnishing led to deterioration in corrosion resistance. It was found that, pitting corrosion occurred around Fe-rich intermetallic particles. Ball-burnishing led to superior fatigue performance in air and under corrosive environment in comparison to other investigated conditions.
74 citations
TL;DR: In this article, an eigenstrain (misfit strain) model of the residual stresses generated by laser shock peening (LSP) is presented, where the shock wave is first modelled as a dynamic pressure load in an explicit finite element (FE) model and the stabilised plastic strain distribution is extracted.
74 citations
TL;DR: In this paper, the effects of nitriding, nitrocarburizing, and shot peening on fatigue behavior of AISI D3 cold work tool steel were investigated, and the results showed that shot peens increased the fatigue life of specimens by about 14%, while double stage nitriders decreased it by about 8%.
73 citations
TL;DR: In this article, the influence of shot peening, laser shock peening and dual (shot and laser peening) treatment on the fatigue behavior of 2024-T351 was investigated.
Abstract: The influence of shot peening, laser shock peening, and dual (shot and laser peening) treatment on the fatigue behavior of 2024-T351 was investigated. Tests showed a fatigue life improvement in all three cases with laser shock peening and dual treatment displaying fatigue performance superior to shot peening. Fractographic analysis showed that the relatively poor performance of the shot peening is caused by ductility loss.
73 citations
TL;DR: In this paper, the effect of femtosecond laser shock peening (fLSP) without a sacrificial overlay under atmospheric conditions (no confinement) on the corrosion behavior of AA2024-T3 was reported.
73 citations