The ribbons of NdFeB/College of Material Science ＆ Engineering, Xihua University, Chengdu 610039, China-Fe composite alloy were prepared by melt spinning and post crystallizing technique. The element distri- butions ...The ribbons of NdFeB/College of Material Science ＆ Engineering, Xihua University, Chengdu 610039, China-Fe composite alloy were prepared by melt spinning and post crystallizing technique. The element distri- butions and phase component of both surfaces of as-spun ribbons were measured by energy dispersive spectrometry （EDS） and X-ray diffraction （XRD）. Because of the centrifugation, a segregation of B, Fe, and Nd concentrations was observed at the cross section. After crystallizing annealing, the element concentration segregation still existed in the as-crystallized ribbons. Due to the segregation of B, Fe, and Nd, the B-rich phase was observed near the wheel side surface. The B-rich phase may deteriorate the magnetic property of NdFeB/a-Fe composite alloy.展开更多
基金The support of"Key Laboratory of Special Materials and Preparation in Sichuan Province"
文摘The ribbons of NdFeB/College of Material Science ＆ Engineering, Xihua University, Chengdu 610039, China-Fe composite alloy were prepared by melt spinning and post crystallizing technique. The element distri- butions and phase component of both surfaces of as-spun ribbons were measured by energy dispersive spectrometry （EDS） and X-ray diffraction （XRD）. Because of the centrifugation, a segregation of B, Fe, and Nd concentrations was observed at the cross section. After crystallizing annealing, the element concentration segregation still existed in the as-crystallized ribbons. Due to the segregation of B, Fe, and Nd, the B-rich phase was observed near the wheel side surface. The B-rich phase may deteriorate the magnetic property of NdFeB/a-Fe composite alloy.
