Hybrid Filler Actions on Functional Performance Evaluation of Magnesium Alloy (AZ61) Hybrid Nanocomposites

IF 2.6 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING
R. Venkatesh, K. Logesh, Pradeep Kumar Singh, Mohanavel Vinayagam, Ismail Hossain, Manzoore Elahi M. Soudagar, Sami Al Obaid, Sulaiman Ali Alharbi, V. K. Ramachandaramurthy
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Abstract

The proposed research of magnesium alloy (AZ61) hybrid nanocomposites followed by advanced liquid-state processing associated with the squeeze die-cast process overcomes the drawbacks (micro-voids, agglomerated particles, and oxidation during open melting) of conventional liquid stir gravity die casting. The boron nitride (BN) and silicon carbide (SiC) nanoparticles are the source of hybrid filler material for composing the AZ61 alloy hybrid nanocomposites. Finding the role of hybrid filler materials during the squeeze casting processing on surface morphological, mechanical, and tribological performance is evaluated by the ASTM standard, and its outcomes are compared with cast AZ61 alloy and AZ61/3 wt% of BN nanocomposites. The advanced liquid-state processing features with squeeze die cast proved void-free structure composite surface and homogenous particle distribution was confirmed by scanning electron microscope analysis. The crystal peaks are confirmed with the support of X-ray diffraction analysis. Besides, the actions of hybrid filler material in AZ61 alloy matrix provided significant results and the composite contained with 3 wt% of BN 7.5 wt% SiC offered improved density (1.851 g/cc), reduced porosity (0.54%), optimum yield, and ultimate tensile strength performance of 184.7 ± 9 and 307.1 ± 6 MPa, maximum hardness (84.6 ± 4 HV), hiked impact strength (24.2 ± 1 J/mm2), reduced volumetric wear loss (0.97 mm3/m) and improved coefficient of friction (0.47). The best functional performance of composite sample (AZ61/3 wt% BN/7.5 wt% SiC) is advised for automotive top roof frame applications.

Abstract Image

混合填料对镁合金(AZ61)混合纳米复合材料功能性能评估的影响
拟议的镁合金(AZ61)混合纳米复合材料研究采用与挤压压铸工艺相关的先进液态加工方法,克服了传统液态搅拌重力压铸工艺的缺点(微空洞、颗粒团聚和开放熔化过程中的氧化)。氮化硼(BN)和碳化硅(SiC)纳米颗粒是构成 AZ61 合金混合纳米复合材料的混合填充材料来源。根据 ASTM 标准评估了挤压铸造过程中混合填充材料对表面形貌、机械和摩擦学性能的作用,并将其结果与铸造的 AZ61 合金和 AZ61/3 wt% BN 纳米复合材料进行了比较。通过扫描电子显微镜分析,证实了挤压铸造的先进液态加工特点,即复合材料表面无空隙结构,颗粒分布均匀。X 射线衍射分析证实了晶体峰值。此外,混合填料在 AZ61 合金基体中的作用效果显著,含有 3 wt% BN 7.5 wt% SiC 的复合材料密度提高(1.851 g/cc),孔隙率降低(0.54% ),最佳屈服强度和极限拉伸强度分别为 184.7 ± 9 MPa 和 307.1 ± 6 MPa,最大硬度(84.6 ± 4 HV),冲击强度提高(24.2 ± 1 J/mm2),体积磨损损失降低(0.97 mm3/m),摩擦系数提高(0.47)。复合材料样品(AZ61/3 wt% BN/7.5 wt% SiC)的最佳功能性能建议用于汽车顶棚框架。
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来源期刊
International Journal of Metalcasting
International Journal of Metalcasting 工程技术-冶金工程
CiteScore
4.20
自引率
42.30%
发文量
174
审稿时长
>12 weeks
期刊介绍: The International Journal of Metalcasting is dedicated to leading the transfer of research and technology for the global metalcasting industry. The quarterly publication keeps the latest developments in metalcasting research and technology in front of the scientific leaders in our global industry throughout the year. All papers published in the the journal are approved after a rigorous peer review process. The editorial peer review board represents three international metalcasting groups: academia (metalcasting professors), science and research (personnel from national labs, research and scientific institutions), and industry (leading technical personnel from metalcasting facilities).
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