非晶态Zr65Cu17.5Ni10Al7.5合金氧化和晶化过程研究

金属功能材料, 2002, 9(2): 16-20. doi: 10.3969/j.issn.1005-8192.2002.02.005

非晶态Zr65Cu17.5Ni10Al7.5合金氧化和晶化过程研究

王焕荣 ^1, , 石志强 ^2, , 张均燕 ^3, , 滕新营 ^4, , 闵光辉 ^5, , 叶以富 ^6,

1.山东大学材料液态结构及其遗传性教育部重点实验室,济南,250061

2.山东大学材料液态结构及其遗传性教育部重点实验室,济南,250061

3.山东大学材料液态结构及其遗传性教育部重点实验室,济南,250061

4.山东大学材料液态结构及其遗传性教育部重点实验室,济南,250061

5.山东大学材料液态结构及其遗传性教育部重点实验室,济南,250061

6.华东理工大学资源与环境工程学院,上海,200237

基金项目: 国家自然科学基金(59871025)

关键词：非晶态 , 合金 , 氧化 , 晶化 , 二十面体

Investigation on Oxidation and Crystallization Behavior of Amorphous Zr65Cu17.5Ni10Al7.5 Alloy

利用X射线衍射(XRD)和差示扫描量热法(DSC)研究了在连续加热条件下非晶态Zr65Cu17.5Ni10Al7.5合金在空气中的氧化和晶化过程.结果表明,在450℃以下,非晶态Zr65Cu17.5Ni10Al7.5合金表面的ZrO2晶粒长大过程服从抛物线规律;当温度超过450℃时,由于非晶基体内部发生晶化过程,阻碍了表面氧化过程的发展,此时ZrO2晶粒大小满足线性规律,并给出了ZrO2晶粒尺寸与温度的函数表达式.非晶态Zr65Cu17.5Ni10Al7.5合金的晶化过程是先形成二十面体相,然后转变为稳定的晶化相.

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