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首页> 外文会议>International symposium on metastable, mechanically alloyed and nanocrstalline materials >Mechanical Alloying and Thermal Treatment of the Fe-Co-Ag System
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Mechanical Alloying and Thermal Treatment of the Fe-Co-Ag System

机译：Fe-Co-AG系统的机械合金化和热处理

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The phase transformations occurring during the mechanical alloying process of the Fe-Co-Ag system for different Ag compositions keeping the Fe-Co in equiatomic ratio, were investigated. High energy ball milling of mixed elemental powders with nominal composition of (FeCo)_x-Ag_(100-2x) and Fe_x-Co_x-Ag_(100-2x) were studied for different milling periods with the aim to study the phase transformations taking place during the process and also to evaluate the microstructure obtained and the possible miscibility of Ag in the system. Heat treatments of the mechanically alloyed powders were performed and structural characterization of the sintered powders was carried out. The mechanically alloyed powders of the ternary systems showed a good dispersion of Ag into the FeCo grains. However after heat treatment as silver content increases sintering is more effective and higher densification is obtained. Silver acts as the cementing phase between FeCo particles. The final microstructure of the sintered alloys shows FeCo particles surrounded by silver contours.
机译：研究了在保持Fe-Co以赤贫率的不同Ag组合物的Fe-Co-Ag系统的机械合金处理过程中发生的相变化。研究了具有（FECO）_-AG_（100-2X）和FE_X-CO_-AG_（100-2X）的标称组成的混合元素粉末的高能球铣削，针对不同的铣削期，目的是研究发生的相变在该过程中并且还评估了所获得的微观结构和系统中的AG可能的混溶性。进行机械合金粉末的热处理，进行烧结粉末的结构表征。三元体系的机械合金化粉末显示出良好的Ag分散到FECO颗粒中。然而，在热处理后，作为银含量的增加，烧结更有效，获得更高的致密化。银作为FECO颗粒之间的固井相。烧结合金的最终组织显示由银轮廓包围的FECO颗粒。

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