pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (25권5호 216-220)
Effects of Mn and Si Contents on the Castabilities and Mechanical Properties of Al-5%Mg Base Alloys
Al-5%Mg 합금의 주조성과 기계적 성질에 미치는 합금원소 Mn 및 Si의 영향
Jeong-Min Kim, Ki-Dug Seong, Joong-Hwan Jun, Ki-Tae Kim, Woon-Jae Jung
Korea Institute of Industrial Technology
High ductility Al-Mg alloys often contain some Mn and Si, however the effects of these minor alloying elements on various properties of alloys have not been fully understood. In this study the castability and mechanical properties of Al-5%Mg alloy were investigated according to the addition of Mn and Si. The fluidity of the alloys was generally increased by increasing Si or Mn contents. The feedability was also increased by increasing Si content, but it was rather decreased by increasing Mn content. Both the tensile strength and the ductility appeared to be deteriorated by Si addition, while they were found to be improved by Mn addition.
Al-Mg alloy, Fluidity, Feedability, Tensile properties
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