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Processing of High Strength Magnesium Alloy with Enhanced Plasticity Using Squeeze Casting

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Abstract:

Crystalline Mg-Cu-Y alloy system was fabricated using the squeeze casting technique. Microstructure showed the multiphase structure composed of primary Mg rich phase distributed among the lamellae patterns, alternative layers of LPSO Mg phase and intermetallic phases. High microhardness and tensile strength of 104 HV and 223 MPa respectively were observed in the squeeze cast alloy. A good combination of compressive strength (706 MPa) and ductility (19%) was also achieved in the crystalline alloy which is unlikely to be attainable in amorphous Mg-Cu-Y system. The formation of LPSO phase in the current Mg-Cu-Y alloy mainly contributed to the high mechanical properties.

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Periodical:

Advanced Materials Research (Volume 1119)

Pages:

613-616

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1119.613

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Online since:

July 2015

Authors:

Khin Sandar Tun*, Goh Chwee Sim, Xing He Tan, Kwok Weng Jimmy Chan, Wai Onn Richard Kwok, Teck Kheng Lee, Manoj Gupta

Keywords:

Mg-Cu-Y Alloy, Microstructure and Mechanical Properties, Squeeze Casting

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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