通过两步搅拌铸造工艺掺入 SiC 和 MWCNT 对混合 AA2024 合金纳米复合材料功能性能的影响

IF 2.6 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING International Journal of Metalcasting Pub Date : 2024-05-07 DOI:10.1007/s40962-024-01351-3
M. Aruna, S. Kaliappan, D. V. V. S. B. Reddy Saragada, R. Venkatesh, V. Vijayan, Manzoore Elahi M. Soudagar, V. Mohanavel, Ismail Hossain, A. H. Seikh
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引用次数: 0

摘要

混合铝合金基复合材料具有高强度、高硬度、高稳定性和高热稳定性等技术优势,被广泛应用于高强度-重量比应用领域。本研究通过两步搅拌铸造工艺,在纳米碳化硅(SiC)颗粒和多壁碳纳米管(MWCNT)的混合作用下,增强混合铝合金(AA2024)纳米复合材料的微观结构和机械功能行为。根据美国材料与试验协会(ASTM)的程序,研究了碳化硅和多壁碳纳米管混合作用对混合 AA2024 纳米复合材料的金相、物理/机械质量和抗腐蚀特性的贡献效应,并与整体铸造的 AA2024 合金特性进行了比较。混合了 SiC 和 MWCNT(重量百分比分别为 5%和 8%)的混合 AA2024 纳米复合材料具有特定的定制优势,如均匀分散的增强体导致较低的孔隙率百分比值(≤ 1%)、330 兆帕的优异极限拉伸强度(可接受的伸长率范围为 10%)、128 HV 的更强抗压痕能力、15.2 J/mm2 的比韧性以及更强的耐腐蚀性能。
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SiC and MWCNT Blending Actions on Functional Performance of Hybrid AA2024 Alloy Nanocomposite Via Two Step Stir Cast Route

The hybrid aluminium alloy matrix composites are adopted in high-strength-to-weight ratio applications with technical benefits, including high strength, good hardness, better stability, and improved thermal stability. This research is enhancing microstructural and mechanical functional behaviours of the hybrid aluminium alloy (AA2024) nanocomposites by the blending actions of nano silicon carbides (SiC) particles and multi-walled carbon nanotube (MWCNT) via a two-step stir cast route. The contribution effect of SiC and MWCNT blending actions on metallography, physical/mechanical qualities, and resistance to corrosion individualities of hybrid AA2024 nanocomposites are studied by the procedure of the American Society for Testing and Materials (ASTM) and compared to monolithic cast AA2024 alloy characteristics. The hybrid AA2024 nanocomposite blended with SiC and MWCNT (weight percentages of 5 and 8%) exposed the specific tailored benefits like homogenous scattered reinforcements resulting in a lower percentage value of porosity (≤ 1%), excellent ultimate tensile strength of 330 MPa with acceptable elongation range of 10%, enhanced indentation resistance capabilities of 128 HV, specific toughness of 15.2 J/mm2, and enhanced corrosion performance.

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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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