Effects of Mn and Ca additions on microstructure and mechanical properties of Al-Mg alloy
The effects of Mn and Ca contents on the microstructure and mechanical properties in Al-Mg alloy were investigated.The results showed that mechanical properties of Al-4.5wt.%Mg were increased as Mn content was raised from 0.1 to 0.5wt.%.Thermodynamic analysis and FE-SEM observation showed that Al15(Fe,Mn)3Si2 phase began to form as Mn content exceeded 0.3wt.%.The case of Ca addition, the tensile strength and elongation of Al-4.5wt.%Mg were decreased as Ca content was increased from 0 to 3wt.%.The maximum solubility of Ca for Al is very lower to 0.074wt.%, the most of Ca precipitated in the form of Al2Ca phase which is very brittle and the increase of Ca content was reduced the mechanical properties.
Al-Mg alloy Microstructure Mechanical property Thermodynamic simulation casting alloy
S.W.Choi Y.C.Kim C.S.Kang J.M.Jung S.K.Hong
KITECH,6 Cheomdan-gwagiro 208 beon-gil,Buk-gu,Gwangju 500-480,Republic of Korea KITECH,6 Cheomdan-gwagiro 208 beon-gil,Buk-gu,Gwangju 500-480,Republic of Korea;Chonnam National Uni Chonnam National University,77 Yongbong-ro,Buk-gu,Gwangju 500-757,Republic of Korea
国际会议
香港
英文
427-430
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）