Thixomolded registered and Thermomechanically Processed Fine-Grained Magnesium Alloys
Thixomolding of Mg alloys produces fine microstructure of about 5-10 micron alpha phase grain size, surrounded by divorced eutectic phases. During the period from 1995 to 2009, this process and microstructure has captured broad applications around the globe-in markets such as electronics (lap-tops,...
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Veröffentlicht in: | Materials science forum 2010-01, Vol.654-656, p.574-579 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Thixomolding of Mg alloys produces fine microstructure of about 5-10 micron alpha phase grain size, surrounded by divorced eutectic phases. During the period from 1995 to 2009, this process and microstructure has captured broad applications around the globe-in markets such as electronics (lap-tops, cameras and cell phones), autos, sports and hand tools. Thermomechanical processing has been applied recently to the Thixomolded precursor to further refine the grain size and eutectic phases-providing yield strength above 300 MPa, fatigue strength of 150 MPa along with elongation of 10%. Alloys studied include AM60, AZ61L and thixoblended alloys of higher Zn content. Microstructure is related to processing and properties. Metal/epoxy fiber composites based on this Mg product have demonstrated yield strength of 900 MPa, with E of 90 GPa. |
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ISSN: | 0255-5476 |
DOI: | 10.4028/www.scientific.net/MSF.654-656.574 |