Mechanical and Microstructure Properties of Ti-6Al-4V Alloy

Dear Colleagues,

The titanium alloy Ti-6Al-4V, or Grade 5, is often referred to as the workhorse titanium alloy, given its widespread usage across a range of industries, including aerospace airframes, gas turbines, marine sectors and biomedical implants. It is a two-phase α/β alloy, with this retained β phase interspersed in the α grains providing concomitant benefits to the mechanical properties that the alloy displays.

Its excellent strength-to-density ratio, its corrosion resistance, high strength, high stiffness, and good elevated temperature performance to over 400 ºC have made it a go-to alloy for these industrial uses.

Through targeted heat treatment, the microstructure of the alloy can show significant variation, from the fully equiaxed α grain microstructure, to a bimodal microstructure, to a fully lamellar α/β microstructure. The inter-relationship between the emerging microstructure of the alloy and the mechanical properties is of critical importance to metallurgists and industrial users of the structural alloy, and is therefore a highly active area of research within academic and industrial communities.

In this Special Issue, we welcome articles that focus on the causal relationships between the microstructure development and the final mechanical properties of this critically important alloy Ti-6Al-4V, with particular usage in one of the key industries that the alloy has become such a critical part of. Research considering manufacturing processing routes, experimental characterization methods, mechanical testing methods, and computational modelling methods of the alloy is of great interest.

Dr. Richard Turner
Guest Editor

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• heat treatment
• microstructure development
• thermodynamics
• finite element analysis
• advanced characterization
• novel processing routes
• micro-mechanical testing