pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (30권6호 205-209)
The Effect of Sr Addition and Holding Time on Mechanical Property and Electrical Conductivity of Al-10.5%Si-2%Cu Secondary Die-casting Alloys
Al-10.5wt%Si-2wt%Cu 다이 캐스팅용 2차 지금의 기계적 특성과 전기전도도에 미치는 Sr 양과 유지시간의 영향 II
Sang-Soo Shin, Myung-Yong Kim*, Gil-Yong Yeom**
Korea Institute of Industrial Technology, *KOMSCO Co., **ECO-Diecast Korea Co.
This study evaluates the influence of strontium addition and holding time on mechanical properties for Al-10.5wt%Si-2wt%Cu secondary die-casting alloy and the measured electrical conductivity of modified alloys. A general improvement in the mechanical properties of the alloy was observed after adding the strontium. Ultimate tensile strength, elongation and electrical conductivity of modified alloys were improved by increasing strontium content and holding time. From these results, the optimal strontium content and holding time were identified on the mechanical properties of Al- 10.5wt%Si-2wt%Cu secondary die-casting alloys.
Eutectic Si, Die-casting alloys, Electrical Conductivity, UTS, Elongation.
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