A Glassy Al-Fe Based Alloy Formed by Solid State Reaction between Al and Amorphous Fe-Mo-Si-B Alloy under High Pressure
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摘要: 在4 GPa，700~900 K温度范围内研究了Al与非晶(Fe0.99, Mo0.01)78Si9B13合金的固态反应过程。利用透射电镜、X射线衍射仪和扫描电镜研究了Al与非晶(Fe0.99, Mo0.01)78Si9B13合金界面所形成的扩散层的微观结构。在780~840 K温度范围内形成的扩散层中观察到Al-Fe基玻璃合金，其晶化温度为870 K左右。还对Al-Fe基玻璃合金的形成机理进行了研究。Abstract: A solid state reaction between Al and amorphous (Fe0.99, Mo0.01)78Si9B13 alloy was investigated under 4 GPa, at temperatures ranging from 780 K to 900 K. The microstructures of the diffusion bands formed by the reaction on the interfaces of Al and the amorphous (Fe0.99, Mo0.01)78Si9B13 alloy were studied by use of transmission electron microscope, X-ray diffractometer and scanning electron microscope. And a glassy Al-Fe based alloy was observed in the diffusion bands produced at temperature of 780 K to 840 K. Its crystallization temperature is estimated to be about 870 K. The formation mechanisms of the Al-Fe based glass are discussed.
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Key words:
- high pressure /
- solid state reaction /
- glassy alloy
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