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首页> 外文期刊>Science and Engineering of Composite Materials >Fabrication of electroless Ni plated Fe-TiC metal matrix composites : Science and Engineering of Composite Materials
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Fabrication of electroless Ni plated Fe-TiC metal matrix composites : Science and Engineering of Composite Materials

机译：化学镀镍的Fe-TiC金属基复合材料的制备：复合材料的科学与工程

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Ni-Fe metal matrix composites reinforced with TiC have been fabricated by tube furnace sintering at various temperatures. A uniform nickel layer on TiC and Fe powders was deposited using electroless plating technique prior to sintering, allowing closer surface contact than can be achieved using conventional methods, such as mechanical alloying. The reactivity between TiC and Fe powders, to form carbides of Fe, is controlled through Ni layer existing on the starting powders. A composite consisting of quaternary additions, a ceramic phase, TiC, within a matrix of FeNi, has been prepared at the temperature range 1000–1400°C under argon shroud. X-ray diffraction, scanning electron microscope (SEM), compressive testing and hardness measurements were employed to characterize the properties of the specimens. Experimental results carried out at 1200°C suggest that the best properties, such as maximum compression strength (σmax) and hardness (HB), were obtained at 1200°C and the tube sintering of electroless Ni plated TiC and Fe powders, is a promising technique to produce ceramic reinforced Ni-Fe composites.
机译：TiC增强的Ni-Fe金属基复合材料是通过在不同温度下进行管式炉烧结而制成的。烧结前使用化学镀技术在TiC和Fe粉末上沉积均匀的镍层，与传统方法（例如机械合金化）相比，可以实现更紧密的表面接触。 TiC和Fe粉末之间形成Fe碳化物的反应性是通过存在于起始粉末上的Ni层来控制的。在氩气罩下，在1000–1400°C的温度范围内，制备了由季铵盐，陶瓷相TiC组成的复合材料，该相位于FeNi基体中。用X射线衍射，扫描电子显微镜（SEM），压缩测试和硬度测量来表征样品的特性。在1200°C下进行的实验结果表明，在1200°C时可获得最佳性能，例如最大抗压强度（σmax）和硬度（HB），并且对化学镀Ni的TiC和Fe粉末进行管式烧结是有希望的生产陶瓷增强镍铁复合材料的技术。

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