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IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design Pub Date : 2025-04-10 DOI:10.1016/j.matdes.2025.113932

Wang Hongding , Hu Mingshuai , Zhao Hongwei , Yao Yacheng , Liu Hong , Li Zhengning , Wei Yupeng

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引用次数: 0

摘要

本研究采用化学修饰增强剂结合热挤压方法，有效地生产出碳化硅装饰还原氧化石墨烯（SiC/RGO，0.1、0.3 和 0.5 wt%）增强 Al5083 复合材料。研究了这些 SiC/RGO/Al5083 复合材料的微观结构和机械性能，重点是 Al5083 MMC 的增强机制。研究结果表明，位于 RGO 表面的 SiC 颗粒抑制了 Al4C3 相的形成。SiC/RGO 显著增强了 Al5083 MMC 的机械性能。强化率为 0.3 wt% 的 Al5083 MMC 的屈服强度和极限强度分别达到 258 MPa 和 317 MPa。与经过类似处理的纯 Al5083 相比，分别提高了 43% 和 38%。对强化机理的分析表明，本研究中的 Al5083 复合材料的强度主要受 RGO 带来的载荷传递改善和 SiC 带来的晶粒细化效应的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Strength-ductility synergistic mechanism of SiC-decorated reduced graphene oxide on 5083 aluminum alloy

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Strength-ductility synergistic mechanism of SiC-decorated reduced graphene oxide on 5083 aluminum alloy

This investigation employed chemical modification of reinforcement combined with hot extrusion methods to effectively produce silicon carbide decorated reduced graphene oxide (SiC/RGO, 0.1, 0.3 and 0.5 wt%) reinforced Al5083 composites. The microstructure and mechanical properties of these SiC/RGO/Al5083 composites were investigated with a focus on the strengthening mechanism of Al5083 MMC. The findings demonstrated that SiC particles positioned on the RGO surface inhibit the formation of the Al₄C₃ phase. SiC/RGO notably enhanced the mechanical properties of the Al5083 MMC. The yield strength and ultimate strength of the Al5083 MMC with 0.3 wt% reinforcement reached 258 and 317 MPa, respectively. This corresponds to a 43 % and 38 % enhancement compared to pure Al5083 that has been processed similarly. Analyses of the strengthening mechanisms reveal that the strength of Al5083 composites in this study is mainly governed by the improved load transfer enabled by RGO and the grain refinement effects contributed by SiC.

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来源期刊

Materials & Design Engineering-Mechanical Engineering

CiteScore

14.30

自引率

7.10%

发文量

1028

审稿时长

85 days

期刊介绍： Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry. The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.