An investigation on texture property correlation in annealed CP-Titanium

Abstract

Rapid industrial development and advances in the fields of engineering and related technologies during the last five decades have led to the extensive use of traditional metals and their alloy counterparts. Ti is one such metal which has gained popularity in the aerospace and defence related applications due to its wide range of mechanical properties like excellent specific strength , stiffness, corrosion and erosion resistance, fracture toughness and capability to withstand significant temperature variations. The present investigation is a step at correlating the crystallographic orientation and mechanical properties of commercially pure Ti (CP-Ti). Annealed CP-Ti specimens were prepared along the rolling direction, perpendicular to the rolling direction and 45o to the rolling direction. The specimens were then deformed to failure under uniaxial tension test in tensile test. Crystallographic textures of the specimens were measured before and after tensile deformation. Correlation of texture and mechanical properties was investigated. Subsequently, hardness of different grains/orientations of CP-Ti was measured through nano-indentation, grain average misorientation, elastic stiffness and Taylor factor measurements