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首页> 外文期刊>Materials Transactions, JIM >Effect of Preparation Methods on the Incorporation/Distribution of Ceramic Particulates in Metal Based Composite Powders
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Effect of Preparation Methods on the Incorporation/Distribution of Ceramic Particulates in Metal Based Composite Powders

机译：制备方法对金属基复合粉末中陶瓷颗粒结合/分布的影响

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In this study, Al-based alloy composite powders were successfully synthesized using ball milling, spray atomization and coinjection and composite melt atomization techniques. The results of the microstructural characterization studies revealed that the penetration of SiC particulates in the metallic powders was size dependent for the powders greater than 100 μm in diameter, synthesized using ball milling technique and for the powders with diameter less than 20 μm synthesized using spray atomization and coinjection technique. For composite melt atomization technique, no such size dependency was observed. The results also indicated that the final distribution of ceramic particulates in the metallic powders was predominantly governed by the processing parameters (as in ball milling technique) and the coupled influence of both the processing parameters and interaction with the solidification front (as in spray atomization and coinjection and composite melt atomization techniques). Finally, the SEM examinations revealed a strong correlationship between the final distribution of the SiC particulates in the bulk material with that observed in the metallic powders.
机译：在这项研究中，成功​​地使用球磨，喷雾雾化和共注射以及复合熔体雾化技术合成了铝基合金复合粉末。微观结构表征研究的结果表明，对于直径大于100μm的粉末（通过球磨技术合成）和对于直径小于20μm的粉末（通过喷雾雾化合成），金属粉末中SiC颗粒的渗透率与尺寸有关。和共注射技术。对于复合熔体雾化技术，没有观察到这种尺寸依赖性。结果还表明，金属粉末中陶瓷颗粒的最终分布主要受加工参数（如球磨技术）以及加工参数和与固化前沿相互作用的耦合影响（如在喷雾雾化和氧化过程中）的共同控制。共注射和复合熔体雾化技术）。最后，SEM检查显示散装材料中SiC颗粒的最终分布与金属粉末中观察到的分布之间具有很强的相关性。

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