ISSN: 1945-7553
Page Count: 9

Strength and Toughness of a Metastable Beta-Titanium Alloy as Influenced by Strain Rate Variations

Chait, R
Supervisory materials engineer, Army Materials and Mechanics Research Center, Watertown,Mass.

Abstract

Strain rate effects for the high strength, metastable beta-titanium alloy Ti-8Mo-8V-2Fe-3Al are assessed in terms of tensile and fracture toughness behavior. It is shown that as the strain rate increases the yield strength, ultimate tensile strength, and ductility also increase. As a result of the decrease in the amount of intergranular fracture as the strain rate is increased, the dynamic fracture toughness values K_Id are greater than those obtained under static conditions as given by K_Q.

Keywords:
titanium alloys, strain rate, toughness, fractography, dynamic strain rate, static strain rate, high strength

Paper ID: JTE10524J
DOI: 10.1520/JTE10524J
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