Accession Number : ADA332819

Title :   Modeling Dynamic Behavior and Texture Evolution in Pure Tantalum (Ta)

Descriptive Note : Final rept. Apr-Sep 95

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Schoenfeld, S. E. ; Ahzi, S. ; Vecchio, K. S.

PDF Url : ADA332819

Report Date : OCT 1997

Pagination or Media Count : 32

Abstract : In order to model high strain rate deformation and texture evolution in commercially pure tantalum (Ta), description for the thermal elastic viscoplastic behavior of Ta single crystals is considered along with an associated polycrystal averaging scheme. The description incorporates a temperature dependent model for pencil glide on the planes of maximum resolved shear stress. Calculated stress strain data and texture evolution for this model are compared to those of a restricted glide model and to experimental data.

Descriptors :   *TANTALUM, VISCOPLASTICITY, THERMAL PROPERTIES, EXPERIMENTAL DATA, SINGLE CRYSTALS, SHEAR STRESSES, TEXTURE.

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE