冷轧 Ni/Ti 多层中的固态非晶化反应——Ⅰ.等温退火处理  

SOLID STATE AMORPHIZATION REACTION IN COLD-ROLLED Ni/Ti MULTILAYERS——I.AN ISOTHERMAL ANNEALING TREATMENT

作　　者：沈同德[1] 全明秀[1] 王景唐[1] 

机构地区：[1]中国科学院金属研究所快速凝固非平衡合金国家重点实验室

出　　处：《材料科学进展》1993年第1期25-30,共6页

基　　金：国家自然科学基金;5880014

摘　　要：通过重复冷轧 Ni/Ti 包覆粉末制备出 Ni/Ti 多层。使用 XRD,SEM,TEM 和磁性分析方法研究了该多层由等温退火导致的固态非晶化反应。运用瞬态形核模型首次在 Ni/Ti 系统中研究了非晶层生长的三类定量关系,即①临界厚度与等温温度②临界退火时间与等温温度③温度-时间-转变关系。上述的定量研究可为三维大尺寸的研制提供理论上的指导。The Ni/Ti multilayers was produced through repeated cold rolling of coatedNi/Ti powders.The isothermal-annealing-induced solid state amorphization in themultilayers was studied by means of XRD,SEM,TEM and magnetic analysis.Atransient-nucleation model was used for the first time to study the three kinds of relationships(1)between the critical amorphous layer thickness and isothermal temperature,(2)between thecritical annealing time and isothermal temperature,and(3)among the temperature,time,andtransition.It is believed that the above-mentioned quantitative studies can give a direction forthe preparation of bulk amorphous alloy.

关 键 词：退火 凝固 铸造 金属玻璃 

分 类 号：TG27[金属学及工艺—铸造]