Deformation behaviour of commercially pure titanium at extreme strain rates


Autoria(s): Gurao, NP; Kapoor, Rajeev; Suwas, Satyam
Data(s)

01/05/2011

Resumo

The evolution of microstructure and texture during room temperature compression of commercially pure Ti with four different initial orientations were studied under quasi-static and dynamic loading conditions. At a low strain rate (epsilon)over dot = 3 x 10(-4) s(-1) the different initial textures yielded the same end texture, despite different microstructural evolution in terms of twin boundaries. High strain rate deformation at (epsilon)over dot = 1.5 x 10(3) s(-1) was characterized by extensive twinning and evolution of a texture that was similar to that at low strain rate with minor differences. However, there was a significant difference in the strength of the texture for different orientations that was absent for low strain rate deformed samples at high strain rate. A viscoplastic self-consistent model with a secant approach was used to corroborate the experimental results by simulation. (C) 2011 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/38232/1/Deformation.pdf

Gurao, NP and Kapoor, Rajeev and Suwas, Satyam (2011) Deformation behaviour of commercially pure titanium at extreme strain rates. In: Acta Materialia, 59 (9). pp. 3431-3446.

Publicador

Elsevier Science

Relação

http://dx.doi.org/10.1016/j.actamat.2011.02.018

http://eprints.iisc.ernet.in/38232/

Palavras-Chave #Materials Engineering (formerly Metallurgy)
Tipo

Journal Article

PeerReviewed