Effect of B4Cp Volume Fraction on Microstructure and Properties of B4Cp/SiCp Hybrid Reinforced 2000 Series Aluminum Matrix Composites

IF 0.8 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI:10.1134/S2070205124701946

Can Li, Xiaojing Xu, Xin Yan

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Abstract

Micron boron carbide particle (B₄C_p) and 2 vol % nano silicon carbide particle (SiC_p) reinforced 2000 series aluminum matrix composites (AMCs) with different volume fractions of B₄C_p (10, 15, and 20 vol %) were fabricated by powder metallurgy. In this study, the microstructure of B₄C_p/SiC_p reinforced 2000 series AMCs was analyzed using an optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Additionally, X-ray diffraction (XRD) analysis was adopted to identify inter-metallic phases that were formed during the heat treatment. The hardness, electrical conductivity, and compressive properties of AMCs were systematically investigated. The results indicate that the reinforcements of 10 and 15 vol % B₄C_p are uniformly distributed, while the reinforcements of 20 vol % B₄C_p present agglomeration in the Al matrix. The hardness of B₄C_p/SiC_p reinforced 2000 series AMCs decreased after increasing, in which the composite with 15 vol % B₄C_p possessed the maximum hardness of 331.9 ± 16.6 HV. In addition, the electrical conductivity of composites decreased with the increase of B₄C_p content. The aluminum matrix composites containing 15 vol % B₄C_p achieved the maximum compressive strength and fracture strain values of 788 MPa and 6.23%, respectively.

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B4Cp体积分数对B4Cp/SiCp混杂增强2000系铝基复合材料组织和性能的影响

采用粉末冶金方法制备了B4Cp体积分数分别为10、15和20 vol %的微米级碳化硼颗粒（B4Cp）和2 vol %纳米碳化硅颗粒（SiCp）增强2000系列铝基复合材料（AMCs）。采用光学显微镜（OM）、扫描电镜（SEM）和能谱分析（EDS）对B4Cp/SiCp增强2000系列碳纤维的微观结构进行了分析。此外，采用x射线衍射（XRD）分析确定了热处理过程中形成的金属间相。系统地研究了复合材料的硬度、电导率和压缩性能。结果表明：10和15 vol % B4Cp的增强剂在Al基体中分布均匀，而20 vol % B4Cp的增强剂在Al基体中出现团聚现象；B4Cp/SiCp增强2000系列AMCs的硬度先升高后降低，其中B4Cp含量为15 vol %的复合材料硬度最高，为331.9±16.6 HV。此外，复合材料的电导率随B4Cp含量的增加而降低。含15 vol % B4Cp的铝基复合材料的最大抗压强度和断裂应变值分别为788 MPa和6.23%。

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来源期刊

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.