Crystallography of recently developed grain refiners for Mg-Al alloys

Qiu, D., Zhang, M.-X., Fu, H., Kelly, P. M. and Taylor, J. A. (2007) Crystallography of recently developed grain refiners for Mg-Al alloys. Philosophical Magazine Letters, 87 7: 505-514. doi:10.1080/09500830701253151

Author Qiu, D.
Zhang, M.-X.
Fu, H.
Kelly, P. M.
Taylor, J. A.
Title Crystallography of recently developed grain refiners for Mg-Al alloys
Journal name Philosophical Magazine Letters   Check publisher's open access policy
ISSN 0950-0839
Publication date 2007
Year available 2007
Sub-type Article (original research)
DOI 10.1080/09500830701253151
Volume 87
Issue 7
Start page 505
End page 514
Total pages 9
Editor E. A. Davis
P. S. Riseborough
Place of publication United Kingdom
Publisher Taylor & Francis Ltd.
Collection year 2008
Language eng
Subject 291403 Alloy Materials
671000 Fabricated Metal Products
Formatted abstract
The grain refinement potency of some recently reported grain refiners for Mg-Al based casting alloys, including TiC, TiN, SiC and TiB2, was investigated from a crystallographic viewpoint using the edge-to-edge matching model. The results show that TiB2 is more likely to form an energetically favourable orientation relationship with the Mg matrix, and it is predicted that TiB2 should have the best grain refinement efficiency. The other three compounds may also serve as heterogeneous nucleation sites, but are not likely to be as effective as TiB2. The present analysis provides a better rationale of the superior grain refinement performance of TiB2 compared with SiC.
Q-Index Code C1
Q-Index Status Confirmed Code

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Created: Thu, 24 Apr 2008, 14:12:13 EST by Sally Beard on behalf of Materials