Paper Title:
The Role of Deformation Twinning on Creep of Titanium Alloys
  Abstract

Normally, deformation twinning is a process that occurs at rates approaching the speed of sound in bulk metals once a critical stress has been reached. However, recently it has been shown that twins grow at speeds many orders of magnitude lower than the speed of sound during room temperature creep of titanium alloys. The net result is that this twinning process can contribute to the low-temperature (less than 0.25*Tm) creep behavior of α, α−β, and β−titanium alloys. For example, α-Ti alloys with small grain size do not extensively deform by twinning and hence show little overall creep strain. These recent developments are reviewed in this paper. This work is funded by the National Science Foundation under Grant Number DMR-0517351.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
121-126
DOI
10.4028/www.scientific.net/MSF.561-565.121
Citation
S. Ankem, P. G. Oberson, "The Role of Deformation Twinning on Creep of Titanium Alloys", Materials Science Forum, Vols. 561-565, pp. 121-126, 2007
Online since
October 2007
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Price
$32.00
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