作者单位:Wang Dongsheng,Xu Baoqiang,Dai Yongnian,Liu Dachun,Xiong Heng(National Engineering Laboratory for Vacuum Metallurgy,Kunming 650093,Yunnan,China;Key Laboratory for Nonferrous Metals Vacuum Metallurgy of Yunnan Province,Kunming 650093,Yunnan,China;Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China)王东生,徐宝强,戴永年,刘大春,熊恒(真空冶金国家工程实验室,云南昆明650093;云南省有色金属真空冶金重点实验室,云南昆明650093;昆明理工大学冶金与能源工程学院,云南昆明650093)