An in situ observation of the s'phase morphology and its orientation with the matrix in an Al-Li base alloy was carried out by means of double-tilt rotating around[220]a in a transmission electron microscope(TEM)....An in situ observation of the s'phase morphology and its orientation with the matrix in an Al-Li base alloy was carried out by means of double-tilt rotating around[220]a in a transmission electron microscope(TEM).The results show that the s'phase precipitates in the form of bundles.The units of s'phase are lath-shaped,grow along the<100>,orientation,and have habit planes of{210}*.Many units of the s'phase grow in the same orientation and get together to form a plate-shaped bundle of s'phase laths which lie on the{110}a planes.展开更多
文摘An in situ observation of the s'phase morphology and its orientation with the matrix in an Al-Li base alloy was carried out by means of double-tilt rotating around[220]a in a transmission electron microscope(TEM).The results show that the s'phase precipitates in the form of bundles.The units of s'phase are lath-shaped,grow along the<100>,orientation,and have habit planes of{210}*.Many units of the s'phase grow in the same orientation and get together to form a plate-shaped bundle of s'phase laths which lie on the{110}a planes.
