A downwards weight spiral

Schauerte, Oliver; Metzner, Dirk; Krafzig, Rolf; Bennewitz, K.; Kleemann, Andreas

doi:10.1007/bf03226802

Cited by 3 publications

(1 citation statement)

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“…The materials in our study are the commonly used α-β-titanium alloy Ti-6Al-4V and the betatitanium alloy Timetal LCB which has found applications for springs in the automotive industry [8]. The Ti-6Al-4V alloy used in the present study is characterized by a bimodal or solution treated and over-aged microstructure with a primary α−content of 64% and an average grain size of 20 µm.…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Residual Stress State and Fatigue Behaviour of Laser Shock Peened Titanium Alloys

Altenberger

Sano

Cherif

et al. 2006

MSF

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Laser shock peening is a very effective mechanical surface treatment to enhance the fatigue behaviour of highly stressed components. In this work the effect of different laser shock peening conditions on the residual stress depth profile and fatigue behaviour without any sacrificial coating layer is investigated for two high strength titanium alloys, Ti-6Al-4V and Timetal LCB. The results show that the optimization of peening conditions is crucial to obtain excellent fatigue properties. Especially, power density, spot size and coverage severely influence the residual stress profile of laser shock peened Ti-6Al-4V and Timetal LCB specimens. For both alloys, subsurface as well as surface compressive residual stress peaks can be obtained by varying the peening conditions. In general, Timetal LCB exhibits steeper stress gradients than Ti-6Al-4V for identical peening conditions. The main parameters affecting the fatigue life are near-surface cold work and compressive residual stresses.

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Section: Materials and Experimental Proceduresmentioning

confidence: 99%