高压下Al与Fe-Mo-Si-B合金固态反应形成Al-Fe基玻璃合金的研究

A GLASSY Al Fe BASED ALLOY FORMED BY SOLID STATE REACTION BETWEEN Al AND AMORPHOUS Fe Mo Si B ALLOY UNDER HIGH PRESSURE

在４ＧＰａ，７８０～９００Ｋ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７８０～８４０Ｋ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８７０Ｋ左右。还对Ａｌ－Ｆｅ基玻璃合金的形成机理进行了研究。

A solid state reaction between Al and amorphous (Fe 0.99 ,Mo 0.01 ) 78 Si 9B 13 alloy was investigated under 4GPa,at temperatures ranging from 780K to 900K.The microstructures of the diffusion bands formed by the reaction on the interfaces of Al and the amorphous(Fe 0.99 ,Mo 0.01 ) 78 Si 9B 13 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 780K to 840K.Its crystallization temperature is estimated to be about 870K.The formation mechanisms of the Al Fe based glass are discussed.