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OALib Journal期刊
ISSN: 2333-9721
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机械研磨Tix(Cu0.45Ni0.55)94-xSi4B2合金系的玻璃形成范围
, PP. 364-368
Keywords: 机械合金化,非晶态合金,晶化
Abstract:
利用X射线衍射、透射电子显微镜和差示扫描量热热计分析表征了Tix(Cu0.45Ni0.55)94-xSi4B2(x=50,60,70,75,80)合金粉末高能球磨后产物的相组成.结果表明,合金成分在50≤x≤70范围,球磨产物主要为非晶相,是但仍残留α-Ti纳米晶体;当x＞70%时,机械研磨仅导致初始晶体相的晶粒细化,形成纳米晶结构,未发生非晶化;不同Ti含量非晶相的晶化行为依赖于合金成分;用2%的V,Zr,Nb元素分别部分替代x=70和x=75合金中Ti时,对非晶相形成范围的扩展没有明显的作用.
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