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Development of adiabatic shear band in cold-rolled titanium

journal contribution
posted on 2011-05-15, 00:00 authored by Dengke Yang, Eileen An, Pavel CizekPavel Cizek, Peter HodgsonPeter Hodgson
The evolution of adiabatic shear localization in commercial titanium subjected to heavy cold rolling was investigated. The evolution of the morphology, microhardness, local shear strain, and local temperature increments were systematically studied and estimated. A shear band with about 25m in width was formed and fine nanograins with a range of dimensions varying from 20 to 160nm and had a mean size of about 70nm were observed inside the centre of shear band after 83% cold-rolling. Microhardness test shows that hardness within the shear band is markedly higher than that of the surrounding matrix. The calculated shear strain and maximum temperature increase within the shear band are much higher than that of the overall deformed sample. The initiation of shear localization may depend on geometric perturbation instead of thermal ones.

History

Journal

Materials science and engineering : A

Volume

528

Issue

12

Pagination

3990 - 3997

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0921-5093

eISSN

1873-4936

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2011, Elsevier