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首页> 外文期刊>Journal of Engineering & Applied Sciences >Premixes Production for Synthesis of Wear-Resistant Composite Materials
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Premixes Production for Synthesis of Wear-Resistant Composite Materials

机译：用于合成耐磨复合材料的预混料

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摘要

State of the art line of powder metallurgy is application of initial powders as micro-composites with additional components-premixes. Usage of premixes inhibits segregation of added components and implies the homogeneity of powder charge composition and finally it has a significant impact on structure formation and properties of end products. The aim of the present research was to design the new production technology of premixes based on iron powder which is layer-by-layer plated by aluminium and copper. We propose to carry out production of Cu-Al-Fe premixes in two stages: cladding of iron powder by aluminium and coating of the obtained composite by copper. The self-developed technique of vibration treatment of iron and aluminium powder mixture was chosen for this purpose. The uniform in thickness and unbroken copper-plating of Fe-Al powders were carried out by chemical technique. Physico-chemical properties and production conditions of premixes-powders were studied, besides optimal parameters of production and further heat-treatment were selected. In the result of the present study the Fe-Al-Cu premixes with laminated structure comprising of iron core, Fe-Al and Cu-Al intermetallide shells were synthesised.
机译：粉末冶金的最新线是用另外的组分预混料施加初始粉末作为微复合材料。预混物的用法抑制添加组分的偏析，并意味着粉末电荷组合物的均匀性，最后它对最终产品的结构形成和性质产生了重大影响。本研究的目的是根据铝和铜的层，设计基于铁粉的预混物的新生产技术。我们建议在两个阶段开展Cu-Al-Fe预混物：通过铝包层，通过铜通过所得复合材料涂覆。为此目的选择了钢铁和铝粉混合物的振动处理的自我开发技术。通过化学技术进行Fe-Al粉末的厚度和不间断镀铜的均匀性。研究了预混物粉末的物理化学性质和生产条件，除了最佳的生产参数还是选择进一步的热处理。在本研究的结果中，合成了包含铁芯，Fe-A1和Cu-Al金属间壳的层压结构的Fe-Al-Cu预混物。

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