Microstructure and magnetic properties of rapidly solidified Sm(Co_(bal)Fe_(0.11)Cu_(0.10)Zr_x)_7 alloys  

作　　者：李丽娅 易健宏 葛毅成 

机构地区：[1]State Key Laboratory of Powder Metallurgy,Central South University

出　　处：《中国有色金属学会会刊：英文版》2007年第A02期1131-1134,共4页Transactions of Nonferrous Metals Society of China

基　　金：Project(04JJ6029) supported by the Natural Science Foundation of Hunan Province, China

摘　　要：Effects of Zr content on the structural,morphological,and magnetic properties of rapidly quenched Sm(CoFe0.11Cu0.10Zrx)7(x=0-0.04) alloys were investigated. The Zr-free ribbon crystallizes with the 1∶7H structure as a major phase while the ribbons with Zr addition adopts the 2∶17R structure type. The ribbons with x=0.03 exhibits a highest coercivity,Hci=933.7 kA/m,because a smaller uniform cellular structure along with a lamellar phase is formed. The decrease of Hci above x>0.03 is mainly related to the formation of 2∶7 phase.Effects of Zr content on the structural, morphological, and magnetic properties of rapidly quenched Sm（CoF0.11CU0.10Zrx）7 （x=0 0.04） alloys were investigated. The Zr-free ribbon crystallizes with the 2：17H structure as a major phase while the ribbons with Zr addition adopts the 2：17R structure type. The ribbons with x-0.03 exhibits a highest coercivity, Hci=933.7 kA/m, because a smaller uniform cellular structure along with a lamellar phase is formed. The decrease of Hci above x〉0.03 is mainly related to the formation of 2：7 phase.

关 键 词：钐合金 快速固化 微观结构 磁性 矫顽力 

分 类 号：TG113[金属学及工艺—物理冶金]