Crystallography of directionally solidified magnesium alloy AZ91期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Crystallography of directionally solidified magnesium alloy AZ91

Authors:	Ketil Pettersen Nils Ryum

Affiliation:	(1) Division of Metallurgy, SINTEF, N-7034 Trondheim, Norway;(2) Institute of Metallurgy, The Norwegian Institute of Technology, N-7034 Trondheim, Norway

Abstract:	The crystallographic direction of growth in directionally solidified magnesium alloy AZ91 has been studied by TEM and EBSP techniques in SEM. The main direction of growth is found to be $\left\langle {11\bar 20} \right\rangle$ . The dendrites have sixfold symmetry around the main direction, with secondary arms lying along the traces of the (0001), $\left( {1\bar 101} \right)$ , and $\left( {\bar 1101} \right)$ -planes, respectively. The secondary arms lying in the basal plane are crystallographically of the same type as the main direction: $\left\langle {\bar 12\bar 10} \right\rangle$ and $\left\langle {2\bar 1\bar 10} \right\rangle$ .

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