轧制对Zr65Al7.5Ni10Cu17.5块体非晶合金硬度的影响

稀有金属材料与工程, 2008, 37(9): 1624-1627.

轧制对Zr65Al7.5Ni10Cu17.5块体非晶合金硬度的影响

刘慧斌 ^1, , 李金富 ^2, , 胡勇 ^3, , 周尧和 ^4,

1.上海交通大学,金属基复合材料国家重点实验室,上海,200030

2.上海交通大学,金属基复合材料国家重点实验室,上海,200030

3.上海交通大学,金属基复合材料国家重点实验室,上海,200030

4.上海交通大学,金属基复合材料国家重点实验室,上海,200030

基金项目: 国家自然科学基金(50671066)

关键词：锆基块体非晶合金 , 轧制 , 力学性能 , 自由体积

Influence of Cold-Rolling on the Hardness of Zr65Al7.5Ni10Cu17.5 Bulk Metallic Glass

用等速率连续加热退火获得不同驰豫态的Zr65Al7.5Ni10Cu17.5块体非晶合金,在室温下对其进行轧制变形,分析变形后材料的结构.结果发现,最大变形量为95%时,该非晶合金仍然保持单一的非晶结构,不断进行的轧制变形仅是在其中引入了逐渐增多的剪切带,非晶合金的硬度也因此而不断下降.非晶合金在变形前的弛豫程度越高,硬度下降的越快.虽然非晶合金的自由体积在应变量大于80%时达到饱和,但随变形量的提高硬度继续下降.

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材料期刊网

轧制对Zr65Al7.5Ni10Cu17.5块体非晶合金硬度的影响

Influence of Cold-Rolling on the Hardness of Zr65Al7.5Ni10Cu17.5 Bulk Metallic Glass

参考文献