The Assimilation Mechanism of Mn-Al Compacts in Liquid Mg
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- Li Zhi
- Department of Materials Science and Engineering, University of Toronto
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- Argyropoulos Stavros A.
- Department of Materials Science and Engineering, University of Toronto
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Abstract
This paper describes the assimilation mechanism of Mn-Al compacts in liquid Mg, utilizing procedures that have been employed successfully in studying assimilation mechanisms in other liquid metals. Two critical steps were identified in the assimilation process: (1) melting of some Mn-Al reaction products and (2) mass transfer of phases with the high Mn content from the reaction sites into the Mg bath. The assimilation process was divided into three stages: incubation stage, intermetallic reaction stage, and homogenization stage. Compact swelling was observed during the intermetallic reaction stage. Yet, contrary to the currently-held prevalent view, it was determined that compact swelling was not due primarily to the formation of new intermetallic phases. Rather, swelling is due to the existence of a large amount of porosity initially in the compact which becomes greatly augmented with the large heat released during the Mn-Al exothermic intermetallic reactions.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 51 (8), 1371-1380, 2010
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679228598784
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- NII Article ID
- 10026513428
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 10768681
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed