Crystallographic Orientation Relationship Between a Al2O3 and Al in In Situ Al2O3 Reinforced Al-4Mg Matrix Composites
OUYANG Liuzhang; LUO Chengping
College of Mechanical Engineering; South China University of Technology; Guangzhou 510641
Cite this article:
OUYANG Liuzhang; LUO Chengping. Crystallographic Orientation Relationship Between a Al2O3 and Al in In Situ Al2O3 Reinforced Al-4Mg Matrix Composites. Acta Metall Sin, 2005, 41(7): 750-754 .
Abstract Al2O3 particles, in situ decomposed from
Al2(SO4)3,
reinforced Al--4Mg matrix composites were made through stir casting.
Al2O3/Al interface in the Al--4Mg matrix composites
was studied by transmission electron microscopy (TEM). The measurements
of crystallographic orientation relationship between
Al2O3 and Al at Al2O3/Al interface show that
no fixed and unique orientation relationship existed, though the following
preferential ones were observed:
:( )Al2O3//(111) Al,[ ]Al2O3//[ ] Al,[ ]Al2O3//[ ] Al。
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MENG Xiangmin; LI Guanglai; ZHANG Futian; WU Yakun(Laboratory of Atomic Imaging of Solids; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang110015)Comspondent: MENG Xiangmin; Tel: (024)3843531-55491; Fax: (024)3891320; E-mail: lais imr ac.cn. TEM STUDIES OF GRAIN BOUNDARY BETWEEN MARTENSITE LATHES IN 9Ni STEEL[J]. 金属学报, 1998, 34(6): 565-570.