Application of Infrared Thermography to determine Stored Energy of Deformation in Aluminide Coated near-α Titanium Alloy during Tensile Deformation (original) (raw)

Coatings are applied to titanium alloys to prolong the life of the components by improving the high temperature oxidation and corrosion resistance. Depending upon the service conditions thickness of the coatings has to be optimized. This in turn affects the mechanical properties of the components. In the present study using the stored energy data tensile deformation behaviour of aluminide coated near α titanium alloy has been studied. The effect of variation in coating thickness on the deformation behaviour of the alloy has also been studied using the calculated stored energy data. Calculation of accurate stored energy change during deformation requires precise measurement of dissipated heat. Infrared thermography technique has been applied to measure the dissipated heat and to monitor the changes in the stored energy during the tensile deformation of aluminide coated near α titanium alloy. Various irreversible process of deformation leads to generation of heat that simultaneously g...