以Zr52.5Cu17.9Ni14.6Al10Ti5五元锆基非晶合金为研究对象,在以工业级海绵锆为原料制备的合金中加入元素Sc,制备出楔形试样,从微观角度分析了元素Sc提高非晶合金玻璃形成能力的机理.结果表明,元素Sc的加入可显著改变Zr52.5Cu17.9Ni14.6Al10Ti5五元锆基块体非晶态合金在非晶态-晶态过渡区中先析相的相结构及组织形态.元素Sc强烈的脱氧作用可减少合金中锆氧化物/锆氧团簇,从而消除了过冷液体中异质形核的核心,提高了Zr52.5Cu17.9Ni14.6Al10Ti5五元锆基块体非晶态合金的玻璃形成能力.
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