Fatigue Behaviour of Notched PVD-Coated Titanium Components

Sergio Baragetti; Luca Lusvarghi; F. Pighetti Mantini; Federico Tordini

doi:10.4028/www.scientific.net/KEM.348-349.313

Paper Titles

Characterization of Early Fatigue Damage in Welded Structures by Thermal Imaging
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Stochastic Improvement of the Residual Strength of a Stiffened Panel
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CT Real-Time Analysis of Meso-Damage Propagation Law of Asphalt Concrete
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The Response Probability of Mesoscopic Damage in Sandstone to External Force and Temperature
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Fatigue Behaviour of Notched PVD-Coated Titanium Components
p.313

The Influence of Loading Ratio on Fatigue Crack Propagation Through a Bi-Material Interface
p.317

The Experimental Study on Fracture Characteristic of Rock
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Impact of Prior Loading on the Reliability of Safety Critical Systems
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Analysis of Thin Film Cracking and Buckling on Compliant Substrate by Fragmentation Test
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 348-349Fatigue Behaviour of Notched PVD-Coated Titanium...

Fatigue Behaviour of Notched PVD-Coated Titanium Components

Abstract:

In this paper the fatigue behaviour of Ti-6Al-4V alloy coated with a TiN arc-deposited PVD film was studied. Rotating bending tests (R = -1) were carried out on standard “hourglass” specimens to evaluate the fatigue limit at 200000 load cycles. Conventional and notched (120° Vnotch transversal to the rotating axis at the minimum cross section area) specimens were tested, both coated and uncoated, to investigate the effect of the coating on the fatigue limit of the titanium alloy, with and without the surface notch. Fracture surfaces were observed by SEM. The coating did not improve the titanium alloy fatigue life.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

313-316

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.313

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Online since:

September 2007

Authors:

Sergio Baragetti, Luca Lusvarghi, F. Pighetti Mantini, Federico Tordini

Keywords:

Notch, PVD Coating, Residual Stress, Rotating Bending Fatigue

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