非晶态合金的电阻应变系数  

THE STRAIN COEFFICIENT OF ELECTRCAL RESISTANCE OF SEVERAL METALLIC GLASSES

作　　者：何华春[1] 冯本政[1] 

机构地区：[1]昆明贵金属研究所

出　　处：《物理学报》1989年第1期140-144,共5页Acta Physica Sinica

摘　　要：本文系统地研究了Pd-,Cu-,Ni-和Fe-基非晶态合金在拉伸过程中的电阻变化以及成分、冷变形和热处理对电阻应变系数k的影响。电阻随应变增大而升高,k为正。合金电阻应变系数总是低于纯组元。硬态试样的电阻应变系数比淬火态的高,比退火态的更高。应用推广的Ziman电阻率理论讨论了非晶态合金电阻应变系数的物理本质及其影响因素。The change in electrical resistance of Pd-, Cu-, Ni- and Fe-base metallic glasses in tensile process and the effect of composition, cold deformation and heat treatment on the strain coefficient of resistance k, have been investigated. The results show that the resistivity increases with the increase of strain and K is positive. K of all the alloys are always less than those of pure metals; k of cold deformed state and annealed state samples are greater than that of rapidly quenched state samrte. The physical nature of K and its factors of influence on metallic glasses are discussedpl in virtue of generalized Ziman theory.

关 键 词：非晶态合金 电阻应变系数 

分 类 号：TG14[一般工业技术—材料科学与工程]