Investigation into effects of re-shot-peening on fretting fatigue behavior of Ti–6Al–4V

The effects of multiple re-shot peening on fretting fatigue behavior of Al7075-T6

“…This may lead to the conclusion that the results obtained in this work agree quite well with those given by Hyukjae Lee et al [10]. The difference can be attributed to the probabilistic nature of fatigue life (see reference [14]) which implies that fatigue life measurements are not deterministic and can vary within a wide range of limits.…”

“…Hyukjae Lee et al [10] conducted fretting fatigue tests of re-shotpeened specimen to investigate the effects of re-shot-peening on fretting fatigue life and residual stress. They conducted fretting fatigue tests on shot-peened Ti-6Al-4V up to 40% of their expected life at room temperature and 260°C as well as after exposure to 370°C followed by fretting fatigue test at room temperature.…”

Dry Sliding Wear Behaviour of Shot Peened TI6AL4V Alloys at Different Peening Times

“…Shot peening (SP) has been widely utilised to increase the fatigue strength of metal alloys [1,2] and applied as a mechanical surface treatment to improve the surface properties of biomaterials [2]. SP is generally used owing to its capability to treat complex shaped components [3].…”

“…The surface of engineering components is repeatedly impacted by shot peening media consisting of steel shots during SP [3,4]. SP induces residual compressive stresses and leads to strain hardening on the surface and near surface of components [1][2][3]. The residual stress and the strain hardening induced by SP prevent crack initiation and propagation, which extends the fatigue life of components [1].…”

Residual stress field and thermal relaxation behavior of shot-peened TC4-DT titanium alloy

“…The stability of the compressive residual stress on near-surface regions against thermal and mechanical loading is a critical issue [3]. The relaxation of residual stress implies the reduction of beneficial effect of shot peening on fatigue behavior [4]. Since the beneficial effect of shot peening is mainly coming from the compressive residual stress at the surface region.…”