Effects of Sr Additions on Microstructures and Mechanical Properties in Al-10%Si-0.3%Mg Alloy

Al-10%Si-0.3%Mg 합금에서 Sr첨가가 미세조직 및 기계적 성질에 미치는 영향

The effects of strontium content as modifier on microstructure and mechanical properties were studied in Al-10%Si-0.3%Mg cast alloys. There were not big differences in the form of eutectic Si particle and its morphology depending on adding amount of strontium, but the alloy modified by 0.012%Sr had shown the higher values than the alloy modified 0.038%Sr in strength, elongation and impact value.