非晶态合金的退火脆化及其影响因素  

Annealing Embrittlement of Amorphous Alloys and Affecting Factors

作　　者：车晓舟[1] 徐颖[1] 胡赓祥[1] 

机构地区：[1]上海交通大学

出　　处：《材料科学与工程》1995年第4期30-34,共5页Materials Science and Engineering

摘　　要：本文综合论述了非晶态合金的退火脆化具有明显的成分依赖性，并对组织结构和制备工艺比较敏感。微量杂质元素的偏聚显著增大合金的脆化倾向，而微量稀土元素铈的适当添加则可以明显减轻杂质元素的不利影响，使延性得到改善。快速退火滞后了合金结构的变化过程，可有效地抑制磁性优化退火过程中非晶态合金的延—脆转化的发生。Annealing embrittlement of amorphous alloys depends strongly on alloy composition and is obviously susceptible to their structure, constituent and qnenching conditions from the melt.The segregation of impurities causes high tendency towards embrittlement, but the suitable amount of microaddition of cerium can reduce the harmful effect of impurities and improve the ductility, Fast anneal slows the structure variating process and effectively restrains the ductile -brittle transition of amorphous alloys in magnetic perfecting anneals.

关 键 词：非晶态合金 退火 脆化 影响因素 

分 类 号：TG166[金属学及工艺—热处理]