%0 Journal Article
%T Microstructure and properties of Mg-Al binary alloys
%A ZHENG Wei-chao
%A LI Shuang-shou
%A TANG Bin
%J China Foundry
%D 2006
%I Foundry Journal Agency
%X The effects of different amounts of added Al, ranging from 1 % to 9 %, on the microstructure and properties of Mg-Al binary alloys were investigated. The results showed that when the amount of added Al is less than 5%, the grain size of the Mg-Al binary alloys decreases dramatically from 3 097 ¦Ìm to 151 ¦Ìm with increasing addition of Al. Further addition of Al up to 9% makes the grain size decrease slowly to 111 ¦Ìm. The ¦Á-Mg dendrite arms are also refined. Increasing the amount of added Al decreases the hot cracking susceptibility of the Mg-Al binary alloys remarkably, and enhances the micro-hardness of the ¦Á-Mg matrix.
%K Mg-Al binary alloys
%K grain size
%K ¦Á-Mg dendrite
%K eutectic microstructure
%K hot cracking
%U http://www.foundryworld.com/uploadfile/20094161419781.pdf