采用创新搅拌铸造法对合成的Al6061/TiO微复合材料力学行为的研究。

Investigation of the Mechanical Behavior of Synthesized Al6061/TiO Microcomposites Using an Innovative Stir Casting Method.

作者信息

Badran A H, Alamro Turki, Bazuhair Rabeea W, El-Mawla Ahmed Ali Gad, El-Adben S Z, Fouly Ahmed

机构信息

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, Minya 61111, Egypt.

Department of Mechanical Engineering, College of Engineering and Islamic Architecture, Umm Al Qura University, Mecca 24382, Saudi Arabia.

出版信息

Nanomaterials (Basel). 2022 May 12;12(10):1646. doi: 10.3390/nano12101646.

DOI:10.3390/nano12101646

PMID:35630868

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9144662/

Abstract

Aluminum composites are preferred in many kinds of applications such as aviation, space, automotive, and marine, owing to their outstanding properties, high strength, and corrosion resistance. The main objective of the current study is to evaluate the mechanical properties of aluminum alloy 6061/titanium dioxide (micro-TiO) microcomposite synthesized using the stir casting method. The effects of changes in stir casting parameters, such as stirring speed and tiring durations, were studied. Al6061 matrix was reinforced with micro-TiO particles with weight fractions of 1, 2, 3, 4, and 5 wt.%. Microstructural and chemical analyses were conducted to explore microstructural transformation resulting from the presence of the TiO microparticles. The mechanical characteristics were evaluated, and the results showed a considerable enhancement in the mechanical strength and hardness resulting from the incorporation of micro-TiO into Al606. The additions of 2 wt.% and 5 wt.% of micro-TiO recorded the highest ultimate tensile strength and hardness, respectively.

摘要

由于铝合金复合材料具有出色的性能、高强度和耐腐蚀性，因此在航空、航天、汽车和船舶等多种应用中备受青睐。本研究的主要目的是评估采用搅拌铸造法合成的6061铝合金/二氧化钛（微米级TiO₂）微复合材料的力学性能。研究了搅拌铸造参数（如搅拌速度和搅拌持续时间）变化的影响。用重量分数为1%、2%、3%、4%和5%的微米级TiO₂颗粒增强Al6061基体。进行了微观结构和化学分析，以探索TiO₂微粒的存在所导致的微观结构转变。对力学特性进行了评估，结果表明，将微米级TiO₂加入Al6061中可显著提高其机械强度和硬度。添加2 wt.%和5 wt.%的微米级TiO₂分别获得了最高的极限抗拉强度和硬度。