Seeding of single crystal superalloys--Role of seed melt-back on casting defects

Stanford, Nicole, Djakovic, A., Shollock, B. A., McLean, M., D'Souza, N. and Jennings, P. A. 2004, Seeding of single crystal superalloys--Role of seed melt-back on casting defects, Scripta materialia, vol. 50, no. 1, pp. 159-163.

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Title Seeding of single crystal superalloys--Role of seed melt-back on casting defects
Author(s) Stanford, Nicole
Djakovic, A.
Shollock, B. A.
McLean, M.
D'Souza, N.
Jennings, P. A.
Journal name Scripta materialia
Volume number 50
Issue number 1
Start page 159
End page 163
Publisher Pergamon
Place of publication Oxford, England
Publication date 2004-01
ISSN 1359-6462
1872-8456
Keyword(s) Bridgman technique
directional solidification
semi-solid
nickel alloy
electron backscattering diffraction (EBSD)
Summary Single crystal seeds of the nickel-base superalloy CMSX-4 have been partially melted in a temperature gradient and then quenched. Small islands of random orientation are observed throughout the melted-back semi-solid. These random orientations appear to be pinched-off secondary dendrite arms, but there is no evidence that they are transported ahead of the dendrite tips to nucleate stray grains during directional solidification.
Notes Available online 3 October 2003.
Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2003, Acta Materialia Inc.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30004415

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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