Assessment of Durability and Damage Tolerance of β-Annealed Ti-6Al-4V

Alex Shekhter; Simon A. Barter; Marcus McDonald; R. Wanhill

doi:10.4028/www.scientific.net/MSF.654-656.887

Paper Titles

Influence of Heat Treatment on the Pseudoelastic Behaviour of a β Ti-25Nb-3Zr-3Mo-2Sn Alloy
p.871

Plastic Deformation Characteristics and Evaluation of Press Formability for Ti-6Al-4V Sheet at Warm Temperature
p.875

Modelling the High Temperature Deformation of Ti-6Al-4V
p.879

Study on Tensile Property and Fracture of Welded Joint of Ti-6.5Al-2Zr-1Mo-1V Alloy by Hydrogen Processing
p.883

Assessment of Durability and Damage Tolerance of β-Annealed Ti-6Al-4V
p.887

Characterization of the Mechanical Behaviour of Both Fusion Zone and Base Metal of Electron Beam Welded TA6V Titanium Alloy
p.890

3D Transient Thermal Modelling and Experimental Validation of the Temperature Distribution during Laser Heating of Ti6Al4V Alloy
p.894

Characterisation of Cold Spray Titanium Coatings
p.898

Drawability of Ti-6Al-4V Sheet at Elevated Temperatures
p.902

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Assessment of Durability and Damage Tolerance of β-Annealed Ti-6Al-4V

Abstract:

-annealed Ti-6Al-4V ELI alloy has a special chemical composition and manufacturing process, intended to optimise its fatigue and fracture properties. This alloy is used in primary fatigue-critical structures of advanced military aircraft, but little has been generally published about its properties, particularly the fatigue and crack growth behaviour under service loading. A test programme has been set up to assess the fatigue durability and damage tolerance properties of the alloy, in the context of the two most relevant analysis methods. The first is strain – life analysis, used to estimate safe lives (durability). The second is fatigue crack growth analysis, used to assess the damage tolerance behaviour. This paper presents preliminary results of the test programme.