The behaviour of AZ91 magnesium-based alloy with Ni–Al2O3 reinforcement

Materials Science and Technology Pub Date : 2024-02-14 DOI:10.1177/02670836241228967

S. Dwivedi, Shubham Sharma

引用次数: 0

Abstract

This study focused on fortifying the AZ91 magnesium-based alloy with Ni–Al2O3 particles using the friction stir process. The resultant AZ91–Ni–Al2O3 composite exhibited a crack-free surface with uniform distribution, showcasing strong interfacial bonding. At 500× magnification, the composite displayed 3213.65 grains per square inch. It demonstrated a 51.75% increase in tensile strength and a 45.76% rise in hardness. The introduction of 2 wt-% Ni–5 wt-% Al2O3 led to a remarkable 76.92% reduction in the wear rate. The composite exhibited a coefficient of friction measuring 0.312. X-ray diffraction (XRD) analysis confirmed the presence of Mg, Mg2Al3, Ni and Al2O3. AZ91/5 wt-% Al2O3/2 wt-% Ni composite finds utility in diverse industries in manufacturing components for aerospace, automotive and structural applications.

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添加 Ni-Al2O3 增强材料的 AZ91 镁基合金的性能

本研究的重点是利用搅拌摩擦工艺，用 Ni-Al2O3 颗粒强化 AZ91 镁基合金。最终得到的 AZ91-Ni-Al2O3 复合材料表面无裂纹，分布均匀，显示出很强的界面结合力。放大 500 倍后，复合材料显示出每平方英寸 3213.65 个晶粒。拉伸强度提高了 51.75%，硬度提高了 45.76%。引入 2 wt-% Ni-5 wt-% Al2O3 后，磨损率显著降低了 76.92%。复合材料的摩擦系数为 0.312。X 射线衍射 (XRD) 分析证实了 Mg、Mg2Al3、Ni 和 Al2O3 的存在。AZ91/5 wt-% Al2O3/2 wt-% Ni 复合材料可用于不同行业，如航空航天、汽车和结构部件的制造。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Materials Science and Technology

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