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Improving the Properties of Cold Sprayed Titanium Alloy

Thu, 17 November, 2022

MDPI have published a new paper on the ‘Effect of Post-Deposition Thermal Treatments on Tensile Properties of Cold Sprayed Ti6Al4V.’

The paper was co-written by Dibakor Boruah, Philip McNutt, Raja Khan and Henry Begg of TWI alongside Xiang Zhang from Coventry University’s Centre for Manufacturing and Materials Engineering.

Titanium alloy Ti6Al4V is a commonly used material that has a growing demand across industries including aerospace due to properties such as excellent corrosion and fatigue resistance, biocompatibility, high strength and stiffness, and good thermal stability.

The study investigated the effects of a number of post-deposition thermal treatments for improving the tensile properties of titanium alloy Ti6Al4V that had been deposited using cold spray.

Various specimens were tested to mimic application scenarios for fully cold sprayed specimens (i.e. additive manufacturing application) as well as for cold spray repair specimens. The two types of specimen were tested as deposited, with solution treatment and ageing (STA), with hot isostatic pressing (HIP), and with HIP followed by STA. In addition to tensile testing, the characterisation of the cold spray deposited materials were investigated for microstructure and hardness.

The experiments were complimented with comprehensive data collection on the effects of the various thermal treatments for improving the tensile properties of cold sprayed Ti6Al4V deposits.

You can see the report in full, below:

Cold Spray Ti6Al4V Paper - pdf - 3mb

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