热处理对NbTi合金临界电流密度的影响  

EFFECT OF HEAT TREATMENT ON CRITICAL CURRENT DENSITY FOR NbTi ALLOYS

作　　者：林建伟[1] 李成仁[2] 

机构地区：[1]河海大学 [2]西北有色金属研究院

出　　处：《低温物理学报》1990年第5期394-399,共6页Low Temperature Physical Letters

摘　　要：研究了不同热处理次数、热处理温度、热处理时间和真实应变对 Nb50 wt%Ti 与 Nb46.5wt%Ti 合金 Jc 的影响.研究结果表明,适度升高热处理温度,增加最终真实应变,对 NbTi合金获得高 Jc 是有利的.经三次 420℃×40h 时效热处理的 Nb50%wtTi(Nb46.5 wt%Ti)合金,在5T 外场下,最佳 Jc 值达到3100 A/mm^2(3000A/mm^2).The effect of heat treatment temperature heat treatment time,number of heat treatments and final drawing strain εf on critical current density Jc for Nb46.5wt%Ti and Nb50wt%Ti have been investigated.Experimental results show that the increase in heat treatment temperature and final drawing strain are oeneficial to obtaing high Jc alloy.The maxinum Jc(5T) reaches about 3000A/mm2 for Nb46.5wt%Ti and 3100A/mm2 for Nb50wt%Ti when both alloys are given three heat treatments at 420℃ for 40 hours.

关 键 词：热处理 NBTI 合金 临界 电流密度 

分 类 号：TM263[一般工业技术—材料科学与工程]