摘要
运用电位方法测量纯金属铍剩余电阻比,研究了时效处理制度对金属铍的剩余电阻比的影响。结果表明:金属铍的剩余电阻比不仅与时效温度和金属内杂质的浓度有关,而且受时效时间的影响;剩余电阻比值随金属铍样品纯度的增加而增加,纯金属铍(纯度大于99.91%)的剩余电阻比值为20-147,并随时效温度和时效持续时间的不同而变化;高纯度(99.94%)金属铍具有合金时效处理倾向,可以作为时效型微合金来研究杂质对金属的性能影响。
The effect of aging treatment on residual resistance ration of pure beryllium was studied by the use ot electric potential approach. The results show that the residual resistance ration relates not only to the aging temperature and the impurity concentration of the metal, but also to the aging time. Residual resistance ration is improved with the increase of beryllium purity. The residual resistance ration value of pure beryllium is 20-147, and it changes with the aging temperature and aging time, High pure beryllium has ageing tendency just as alloy, so it can be used as aging low alloy to investigate the effect of impurity on the metal performance.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2007年第7期1124-1128,共5页
The Chinese Journal of Nonferrous Metals
基金
江苏大学资助项目(05JDG009)
关键词
铍
剩余电阻比
时效处理
beryllium
residual resistance ration
aging treatment
作者简介
通讯作者：张青来，副教授，博士；电话：051l-8797324；E-mail：qlfzhang@sh163net
