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Grain refinement of pure magnesium using rolled Zirmax® master alloy (MG-33.3ZR)

Qian, Ma, St John, David, Frost, Malcom and Barnett, Matthew 2003, Grain refinement of pure magnesium using rolled Zirmax® master alloy (MG-33.3ZR), in Magnesium technology 2003 : proceedings of the jointly sponsored by the Magnesium Committee of the Light Metals Division (LMD) and the Solidification Committee of the Materials Processing and Manufacturing Division of TMS (the Minerals, Metals & Materials Society) with the International Magnesium Association held during the 2003 TMS Annual Meeting in San Diego, California, U.S.A., March 2-6, 2003, TMS, Warrendale, Pa..

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Title Grain refinement of pure magnesium using rolled Zirmax® master alloy (MG-33.3ZR)
Author(s) Qian, Ma
St John, David
Frost, Malcom
Barnett, Matthew
Conference name Minerals, Metals and Materials Society. Meeting (2003 : San Diego, Calif.)
Conference location San Diego, Calif.
Conference dates 2-6 Mar. 2003
Title of proceedings Magnesium technology 2003 : proceedings of the jointly sponsored by the Magnesium Committee of the Light Metals Division (LMD) and the Solidification Committee of the Materials Processing and Manufacturing Division of TMS (the Minerals, Metals & Materials Society) with the International Magnesium Association held during the 2003 TMS Annual Meeting in San Diego, California, U.S.A., March 2-6, 2003
Editor(s) Kaplan, Howard I.
Publication date 2003
Publisher TMS
Place of publication Warrendale, Pa.
Summary Owing to the limited solubility of zirconium in molten magnesium, almost all of the zirconium contained in the Zirmax® master alloy (Mg-33.3Zr) is present in the form of nearly pure zirconium particles. Of them, zirconium particle clusters and individual zirconium particles greater than 5 􀁐m in dimension account for approximately 70% of the area of all zirconium particles observed in the microstructure. Rolling a Zirmax® master alloy ingot can allow some zirconium particle clusters to fragment. Comparisons were made of the grain-refining ability between as-received Zirmax® and rolled Zirmax® master alloys by adding both forms of master alloy to pure magnesium under the same conditions. It was found that the use of rolled Zirmax® delivered higher total and soluble zirconium contents, and therefore better grain refinement in the final alloy than did the use of as-received Zirmax®. The improved performance of rolled Zirmax® master alloy was primarily attributed to less intense zirconium particle settling.
ISBN 0873395336
9780873395335
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category E2 Full written paper - non-refereed / Abstract reviewed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30014033

Document type: Conference Paper
Collection: School of Engineering
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