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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Phase, microstructure, and wear behavior of AI_2O_3-reinforced Fe-Si alloy-based metal matrix nanocomposites
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Phase, microstructure, and wear behavior of AI_2O_3-reinforced Fe-Si alloy-based metal matrix nanocomposites

机译：Al_2O_3增强的Fe-Si合金基金属基纳米复合材料的相，微结构和磨损行为

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摘要

In the present work, phase, microstructure, and wear properties of Al2O3-reinforced Fe-Si alloy-based metal matrix nanocomposites have been studied. Composites using 2 wt.% and 5 wt.% of Si and rest Fe powder mix were synthesized via powder metallurgy and sintered at different temperature schedules. Iron-silicon alloy specimens were found to have high hardness and high wear resistance in comparison to pure iron specimens. Addition of 5 wt.% and 10 wt.% alumina reinforcement in Fe-Si alloy composition helped in developing iron aluminate (FeAl2O4) phase in composites which further improved the mechanical properties i.e. high hardness and wear resistance. Formation of iron aluminate phase occurs due to reactive sintering between Fe and Al2O3 particles. It is expected that the improved behavior of prepared nanocomposites as compared to conventional metals will be helpful in finding their use for wide industrial applications.
机译：在目前的工作中，已经研究了Al 2 O 3增强的Fe-Si合金基金属基纳米复合材料的相，微观结构和磨损性能。通过粉末冶金合成使用2wt。％和5wt。％的Si和剩余的Fe粉末混合物的复合材料，并在不同的温度方案下烧结。与纯铁样品相比，发现铁硅合金样品具有高硬度和高耐磨性。在Fe-Si合金组合物中添加5重量％和10重量％的氧化铝增强材料有助于在复合物中形成铝酸铁（FeAl 2 O 4）相，这进一步改善了机械性能，即高硬度和耐磨性。铝酸铁相的形成是由于Fe和Al2O3颗粒之间的反应性烧结而引起的。预期与常规金属相比，制备的纳米复合材料的改善的性能将有助于发现其在广泛的工业应用中的用途。

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