The effect of cutting speed and heat treatment on the fatigue life of Grade 5 and Grade 23 Ti-6Al-4V alloys

Niu, W., Bermingham, M. J., Baburamani, P. S., Palanisamy, S., Dargusch, M. S., Turk, S., Grigson, B. and Sharp, P. K. (2013) The effect of cutting speed and heat treatment on the fatigue life of Grade 5 and Grade 23 Ti-6Al-4V alloys. Materials & Design, 46 640-644. doi:10.1016/j.matdes.2012.10.056


Author Niu, W.
Bermingham, M. J.
Baburamani, P. S.
Palanisamy, S.
Dargusch, M. S.
Turk, S.
Grigson, B.
Sharp, P. K.
Title The effect of cutting speed and heat treatment on the fatigue life of Grade 5 and Grade 23 Ti-6Al-4V alloys
Journal name Materials & Design   Check publisher's open access policy
ISSN 0264-1275
1873-4197
Publication date 2013-04-01
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.matdes.2012.10.056
Volume 46
Start page 640
End page 644
Total pages 5
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Abstract High speed machining is a necessary manufacturing method for ensuring productivity and profitability. However, research has demonstrated that the high speed machining process impairs the surface characteristics of materials such as Ti-6Al-4V including surface roughness and subsurface microstructural damage. Therefore, there is concern that high speed machining detrimentally influences the fatigue properties of Ti-6Al-4V components. This paper investigates the effect of cutting speed on the surface integrity and fatigue properties of Ti-6Al-4V (ASTM Grade 5) and Ti-6Al-4V ELI (ASTM Grade 23) alloys in the beta annealed and mill annealed heat treated conditions. It was found that the surface roughness and fatigue properties are not significantly influenced by cutting speed, however, the microstructure substantially influences the properties.
Keyword Titanium alloys
Bulk deformation
Thermomechanical processing
Mechanical characterisation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 22 November 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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