用正电子湮没技术研究微量铝对铁基非晶态合金的影响  

A Study of Effect of Aluminum on Iron-Based Amorphous Alloys by Positron Annihilation

作　　者：王景成[1] 尤富强[1] 殷俊林[1] 高国华[1] 

机构地区：[1]上海市金属功能材料开发应用重点实验室

出　　处：《上海钢研》2002年第1期7-11,共5页Journal of Shanghai Iron and Steel Research

摘　　要：用正电子湮没技术研究了七种铁基非晶态合金,结果表明铝含量高的合金的正电子湮没参数大于铝含量低的合金,意味着铝的存在会造成铁基非晶态合金微观结构的不均匀性,很可能是较多的类空位缺陷出现。Seven Fe-based amorphous alloys have been studied by Doppler broadening and lifetime techniques of positron annihilation. It is shown that the parameters of positron annihilation in the Fe-based amorphous alloys containing more aluminum are higher than those in the alloys with less aluminum, which means that the existence of element aluminum in Fe-based amorphous alloys results in a more inhomogeneous structure on a smaller scale, probably, more vacancy-like defects.

关 键 词：正电子湮没技术 非晶态合金 铝 铁基 类空位缺陷 微观结构 变压器 

分 类 号：TM2[一般工业技术—材料科学与工程] TG139.8[电气工程—电工理论与新技术]