FINEMET非晶合金激波晶化中Cu和Nb作用的失效  

RESTRAINING OF Cu AND Nb FUNCTIONS IN SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOY FINEMET

作　　者：刘佐权[1] 张远第[1] 周效锋 刘贤 阚家德[1] 吕毓松[1] 

机构地区：[1]云南大学物理系,昆明650091 [2]曲靖高等师范专科学校物理系,曲靖655000

出　　处：《金属学报》2000年第2期120-122,共3页Acta Metallurgica Sinica

基　　金：国家自然科学基金!59671031;南京大学固体微结构国家重点实验室开放课题!M961117

摘　　要：应用ＸＲＤ， ＤＳＣ及ＴＥＭ等技术，将ＦＩＮＥＭＥＴ非晶合金的激波晶化与退火晶化及不含Ｃｕ，Ｎｂ的Ｆｅ－Ｂ－Ｓｉ和Ｆｅ－Ｍｏ－Ｂ－Ｓｉ合金的激波晶化作了对比研究结果表明，该合金的激波晶化除了具有极高的转变速率和相当完全的晶化度外，合金元素Ｃｕ和Ｎｂ在退火晶化时具有的细化晶粒。The crystallization behaviors of amorphous alloy FINEMET by shock wave and annealing were studied using XRD, DSC and TEM. Compared themwith the shock wave crystallization of Fe-B-Si and Fe-Mo-B-Si alloy, it was found that the finery effect of crystal size, the ability of preventing the growth of crystal and stabilization of the non-crystalline state produced by addition of element Cu and Nb are lost. To explain this phenomena, a model, the non-crystalline state become some fluid state under the action of the shock wave, was suggested.

关 键 词：非晶合金 激波晶化 类流体态 铜 铌 

分 类 号：TG139.8[一般工业技术—材料科学与工程]