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Variation of Fluidity and Mechanical Properties of Al-Mg Alloys with the Addition of Si, Mn, and Zn  

Kim, Jeong-Min (Light Materials Research Team, Korea Institute of Industrial Technology)
Seong, Ki-Dug (Light Materials Research Team, Korea Institute of Industrial Technology)
Jun, Joong-Hwan (Light Materials Research Team, Korea Institute of Industrial Technology)
Kim, Ki-Tae (Light Materials Research Team, Korea Institute of Industrial Technology)
Jung, Woon-Jae (Light Materials Research Team, Korea Institute of Industrial Technology)
Publication Information
Journal of Korea Foundry Society / v.24, no.3, 2004 , pp. 138-144 More about this Journal
Abstract
Effects of alloying elements such as Si, Mn, Zn on the fluidity and mechanical properties of high ductility Al-Mg based alloys were investigated. The fluidity of alloys was evaluated using a vacuum suction fluidity test, and Si addition was observed to increase the fluidity of AI-Mg binary alloys substantially while Zn somewhat decreased the fluidity. However, both the strength and ductility were significantly deteriorated by the Si additions. It was observed that a small amount of Mn addition to Al-Mg alloy increased the tensile strength effectively without losing much ductility but the effect of Zn addition on the strength was relatively small.
Keywords
Al; Mg; fluidity; strength; ductility;
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