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A Study on the Die Casting of Mg-9Al-1Zn Alloy for Air Bag Case  

Kim, Sun-Ho (신라대학교 공과대학 자동차기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.10, 2002 , pp. 77-83 More about this Journal
Abstract
Magnesium alloys casting are gaining increased acceptance in the automotive and electronic industeries and die casting is the most efficient method of manufacturing such mass produced parts. This study has been investigated the microstructures and mechanical properties of Mg-9Al-lZn alloy fabricated by die casting process for development of air bag case. The microstructure of die casted specimen were composed of pro-eutectic magnesium solid solution and $\beta$(Mg17Al12) precipitates. The tensile strength of as-fabricated Mg-9Al-lZn alloy revealed 231.4MPa. It was found that Mg-9Al-lZn alloy have good corrosion resistance in electrochemical polarization test.
Keywords
die casting; Mg-9Al-lZn alloy air bag case; precipitateselectrochemical polarization test;
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