Abstract

The present study deals with the warm temperature deformation behavior of the titanium (Ti-6Al-4V) alloy throughout investigating the flow behavior and the correlated microstructure evolutions. Toward this end, the hot compression tests were conducted at different temperatures and strain rate. Titanium is a low-density element that can be highly strengthened by alloying and deformation processing. Titanium is nonmagnetic and has good heat transfer properties. Its co-efficient of thermal expansion is somewhat lower than half that of aluminum. The titanium materials, in a relatively short time, have become backbone materials for the aerospace, energy, and chemical industries. The combination of high strength-to-weight ratio, excellent mechanical properties, and corrosion resistance makes titanium the best material choice for many critical applications. Hot compression test can be conveniently used to study the plastic deformation of a material under different conditions of temperature and strain rate. The effect of micro structural characteristics of the deformed specimen were studied and correlated with the test temperature, total strain and strain rate to develop a constitutive equation for the flow stress dependence on strain rate, and temperature. Micro-structural examinations were carried out, on the specimen and results were analyzed and reported.

Keywords: Titanium; Hot compression; Temperature; Strain rate