Thermal stability of an ultrafine grain β-Ti alloy

Kent, D., Xiao, W. L., Wang, G., Yu, Z. and Dargusch, M. S. (2012) Thermal stability of an ultrafine grain β-Ti alloy. Materials Science and Engineering A, 556 582-587. doi:10.1016/j.msea.2012.07.030


Author Kent, D.
Xiao, W. L.
Wang, G.
Yu, Z.
Dargusch, M. S.
Title Thermal stability of an ultrafine grain β-Ti alloy
Journal name Materials Science and Engineering A   Check publisher's open access policy
ISSN 0921-5093
1873-4936
Publication date 2012-10-30
Sub-type Article (original research)
DOI 10.1016/j.msea.2012.07.030
Volume 556
Start page 582
End page 587
Total pages 6
Place of publication Lausanne, Switzerland
Publisher Elsevier
Collection year 2013
Language eng
Abstract The aim of this research was to investigate the thermal stability of an ultrafine grained metastable Β Ti alloy, Ti-25Nb-3Zr-3Mo-2Sn, which was formed using a modified accumulative roll bonding technique. The thermal stability was assessed during annealing heat treatments through property and microstructure observations. Only small changes were detected in the hardness during annealing at temperatures of 400 °C-500 °C. There was no change in the Β grain size after prolonged annealing treatments at 400 °C and limited grain growth at 500 °C. At these temperatures coarsening of the α phase and some recovery is evident. Significant recrystallisation of the Β phase in conjunction with grain growth occurred at an annealing temperature of 600 °C and was associated with substantial reduction in the hardness. An ultrafine grain structure was retained after prolonged annealing at this temperature.
Keyword Annealing
Electron microscopy
Grain growth
Titanium alloys
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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Created: Thu, 01 Nov 2012, 13:41:09 EST by Mr Damon Kent on behalf of School of Mechanical and Mining Engineering