Thermal stability and mechanical properties of a Zr-based bulk amorphous alloy
Thermal stability and mechanical properties of a Zr-based bulk amorphous alloy
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DOI：
10.1016/j.msea.2004.01.088
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发表时间：
2004-12
期刊：
影响因子：
6.4
通讯作者：
D. Fátay;J. Gubicza;P. Szommer;J. Lendvai;M. Blétry;P. Guyot
中科院分区：
文献类型：
--
作者：
D. Fátay;J. Gubicza;P. Szommer;J. Lendvai;M. Blétry;P. Guyot
研究了Zr-Al-Cu-Ti-Ni大块非晶合金的热性能和力学性能。用量热法和X射线衍射法研究了其玻璃化转变和晶化过程。结果表明，结晶分两步进行。测定了析出相和活化能。结果表明，晶化过程受合金化的铜、镍原子扩散控制。通过压痕试验研究了材料的蠕变行为。由压痕测定的变形过程的粘度和活化能与压缩试验得到的结果基本一致。
The thermal and mechanical properties of a Zr–Al–Cu–Ti–Ni bulk metallic glass were investigated. The glass transition and the crystallization were studied by calorimetry and X-ray diffraction. It was found that the crystallization occurred in two steps. The precipitating phases, and the activation energies were determined. It was established that the crystallization was controlled by the diffusion of the alloying Cu and Ni atoms. The creep behavior was investigated by indentation tests. The viscosity and the activation energy of the deformation process determined from indentation were in reasonable agreement with those obtained by compression tests.