Crystallographic Orientation Relationship Between a Al2O3 and Al in In Situ Al2O3 Reinforced Al-4Mg Matrix Composites
原位生成Al2O3增强Al-4Mg基复合材料中的Al2O3/Al位向关系

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: (1210)Al2O3//(111)Al> 1012]Al2O3 // 112]A1, 2021]Al2O3 // 101]Al.