铝元素添加对Cu_(55)Hf_(45)二元合金玻璃形成能力的影响
Materials for Mechanical Engineering（2013）
Abstract
在具有高玻璃形成能力(GFA)的铜铪二元合金基础上,研究了铝元素添加对Cu55Hf45二元合金凝固组织及GFA的影响。结果表明:添加7%的铝(原子分数)可显著提高Cu55Hf45合金的GFA,其玻璃形成临界直径由1.5mm提高到8mm;Cu53Hf40Al7合金具有最佳GFA,其压缩应变达到2.1%～3.9%,屈服强度可达2 210～2 470MPa。
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Key words
eutectic reaction,Cu-based alloy,metallic glass,glass-forming ability(GFA)
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