Deformation Behaviour and Microstructure Evolution of Titanium Alloys with Hot Working Process

Abstract

Abstract: The behaviour of the high-temperature deformation mechanism of titanium alloys at different temperatures and strain rates and the associated changes in the microstructure have been studied. In addition to good heat transfer properties, titanium has a low density, can be reinforced with alloys, and can be deformed and formed to increase strength. Titanium is nonmagnetic and a good conductor of heat. Its coefficient of thermal expansion is slightly lower than that of steel and less than half that of aluminium. Titanium's combination of mechanical and physical properties, as well as its resistance to corrosion, m ake it an ideal material for critical applications in the aerospace, industrial, chemical and energy sectors. It has been found t hat the appropriate parameters of the titanium deformation process are different temperature conditions and strain rates. The influence of the micro-structural properties of the deformed specimen was studied and correlated with the test temperature, total strain and strain rate to develop a constitutive equation for the relationship between yield strength, strain rate and temperature. Micro-structural studies were performed on the sample and the results analysed..