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Synthesis and Characterization of Silicon Nitride Reinforced Al–Mg–Zn Alloy Composites
Metals and Materials International ( IF 3.5 ) Pub Date : 2021-01-03 , DOI: 10.1007/s12540-020-00906-3
G. Anbuchezhiyan , B. Mohan , N. Senthilkumar , R. Pugazhenthi

Abstract

In this work, aluminium metal matrix composite reinforced with hard silicon nitride (Si3N4) particles have been performed experimentally. Squeeze casting technique was adopted to synthesis the novel AMMC for different weight fractions of Si3N4 (3, 6 and 9%). The AMMC is characterized for their tensile strength, micro-Vickers, density and porosity, compressive strength, impact, corrosion and wear resistance, as per ASTM standards. Observation shows that, with the inclusion of Si3N4 particle, the mechanical behaviour, corrosion and wear-resistant of synthesized composites was considerably improved. Scanning Electron microscope micrograph of worn surfaces displays the presence of grooves parallel to the sliding direction and some plastic deformations. The inclusion of Si3N4 shows deep grooving, that is associated with abrasive wear.

Graphic Abstract



中文翻译:

氮化硅增强的Al-Mg-Zn合金复合材料的合成与表征

摘要

在这项工作中,已经进行了用硬氮化硅(Si 3 N 4)颗粒增强的铝金属基复合材料的实验。采用挤压铸造技术合成了不同重量分数的Si 3 N 4(3%,6%和9%)的新型AMMC 。根据ASTM标准,AMMC的特征在于其拉伸强度,微维氏硬度,密度和孔隙率,抗压强度,冲击,耐腐蚀和耐磨性。观察表明,含Si 3 N 4颗粒,使合成复合材料的机械性能,腐蚀和耐磨性得到了显着改善。磨损表面的扫描电子显微镜显微照片显示,存在平行于滑动方向的凹槽以及一些塑性变形。Si 3 N 4的夹杂物显示出深沟槽,这与磨料磨损有关。

图形摘要

更新日期:2021-01-03
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