Grain-refinement mechanisms in titanium alloys

Bermingham, M., McDonald, S.D., Dargusch, M.S. and St John, D.H. (2008) Grain-refinement mechanisms in titanium alloys. Journal of Materials Research, 23 1: 97-104. doi:10.1557/JMR.2008.0002


Author Bermingham, M.
McDonald, S.D.
Dargusch, M.S.
St John, D.H.
Title Grain-refinement mechanisms in titanium alloys
Journal name Journal of Materials Research   Check publisher's open access policy
ISSN 0884-2914
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1557/JMR.2008.0002
Open Access Status
Volume 23
Issue 1
Start page 97
End page 104
Total pages 8
Editor Pike, G.E.
Place of publication United States
Publisher Materials Research Society
Language eng
Subject 291403 Alloy Materials
C1
861203 Metal Castings
091207 Metals and Alloy Materials
Abstract Despite the importance of the prior-beta grain structure in determining the properties of titanium-based alloys, there are few published studies on methods of controlling the size of these grains in commercial alloys. The existing research raises questions about the relative importance of solute elements in grain-refining mechanisms, particularly the common alloying elements of aluminum and vanadium. The effect of these elements was investigated by producing a series of castings in a nonconsumable arc-melting furnace, and the results were interpreted with the aid of available phase-diagram information and solute-based models of grain refinement. A small reduction in grain size was obtained with increasing solute additions; however, this was not expected from the theoretical analysis. Possible reasons for this discrepancy are discussed.
Keyword Materials Science, Multidisciplinary
Materials Science
MATERIALS SCIENCE, MULTIDISCIPLINARY
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Wed, 01 Apr 2009, 23:27:16 EST by Sally Beard on behalf of Materials