AA1050 metal matrix composites reinforced by high-entropy alloy particles via stir casting and subsequent rolling

Luo, Kaiguang; Xiong, Hanqing; Zhang, Yun; Gu, Hao; Li, Zhide; Kong, Charlie; Yu, Huimin

doi:10.1016/j.jallcom.2021.162370

Cited by 37 publications

(10 citation statements)

References 40 publications

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“…Due to the excessive shear deformation, the upper and lower surfaces of the material had different deformation rates, therefore, sheet warping was easy to occurrence. However, the ACR adopted in this paper limited warpage of the sheets due to HEAp/AMCs excellent performance in cryogenic environment and low coefficient thermal expansion IOP Publishing doi:10.1088/1757-899X/1270/1/012079 6 [19]. At the same time, ACR had the advantages of low rolling force and low deformation resistance, and could realize the deformation of the material under lower rolling force.…”

Section: Microstructure Analysismentioning

confidence: 99%

Effect of asymmetric rolling on microstructure and mechanical properties of aluminum matrix composites

Luo

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The lightweight of structural materials was an important research focus for reduced energy consumption and transport efficiency. Aluminium matrix composites (AMCs) had the advantages of high specific strength and good wear resistance, so they were widely used in automobile, aerospace and other fields. At present, the deformation mechanism of AMCs reinforced by high-entropy alloy particles (HEAp) in asymmetric rolling was not clear. In this work, AMCs ingot reinforced with 6 wt% HEAp was prepared by stir casting process. Then the mechanical properties of HEAp/AMCs under different rolling processes were studied by asymmetric rolling (AR) and asymmetric cryorolling (ACR) processes. High-entropy alloy (HEA) had excellent strength and toughness, which imparted good deformation ability when added to AMCs as reinforcement. The microstructure of AMCs reinforced by HEAp was refined by ACR. At the same time, the HEAp/AMCs obtained by ACR displayed a higher ultimate tensile strength (UTS) than that obtained by AR. The study of ACR shows that AMCs reinforced with HEAp have good toughness. ACR can reduce the thickness of HEAp/AMCs to a greater extent so as to produce AMCs strip with excellent mechanical properties.

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Section: Microstructure Analysismentioning

confidence: 99%

Effect of asymmetric rolling on microstructure and mechanical properties of aluminum matrix composites

Luo

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…To address the issues of pore defects and insufficient mechanical properties in the prepared materials, some researchers have adopted post-processing methods such as heat treatment, [47,[79][80][81] cryogenic treatment, [82,83] and rolling. [82,[84][85][86][87][88] These methods aim to further enhance the quality and performance of the material by adjusting its structure.…”

Section: Posttreatmentmentioning

confidence: 99%

Preparation, Microstructure, and Mechanical Properties of Al Matrix Composites Reinforced with High‐Entropy Alloys: A Review

Ren,

Zheng,

Zhao

et al. 2024

Adv Eng Mater

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Al matrix composites (AMCs) are innovative materials prepared by introducing various reinforcements into Al alloys using suitable processes. Traditional particle‐reinforced AMCs usually have high strength but poor interfacial bonding, resulting in low plasticity. Researchers are attempting to solve this problem by identifying more proper reinforcing particles. High‐entropy alloys (HEAs) with excellent mechanical properties including high strength, ductility, and wear resistance are becoming attractive candidates for the reinforcement of Al alloys. The HEAs‐reinforced AMCs (HEAs@AMCs) combine the lightweight property of Al alloys and superior mechanical properties of HEAs. This article provides a comprehensive overview on the HEAs@AMCs, starting with an introduction to the properties of HEAs, followed by the design principle of HEAs for the metal matrix composites (MMCs). After that, the preparation, microstructure, and mechanical properties of the HEAs@AMCs are examined. In addition, the effects of HEAs on the microstructure and mechanical properties of the HEAs@AMCs are explored.This article is protected by copyright. All rights reserved.

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“…The advent of composites has widened the scope of materials with properties that can be tuned to meet specific structural and/or design requirements. Metal-matrix composites (MMCs) have illustrated properties and performances that are superior to those of their conventional, monolithic metallic counterparts [1]. Advancements in research on MMCs have resulted in overcoming challenges such as economical processing, design and characterization of composite materials along with an improved understanding of the interfacial interactions between the matrix and the selected reinforcements [2].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Thermal Properties of LM13- Quartz- Fly-Ash Hybrid Composites

Murthy,

Ambekar,

Hiremath

2024

J. Compos. Sci.

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In the present work, a metal–matrix composite was casted using the LM13 aluminum alloy, which is most widely used for casting automotive components. Such applications require materials to withstand high operating temperatures and perform reliably without compromising their properties. In this regard, particulate-reinforced composites have gained widespread adaptability. The particulate reinforcements used comprise of one of the widely available industrial by-products. which is fly ash, along with the abundantly available quartz. Hybrid composites are fabricated through the economical liquid route that is widely used in mass production. Though there are numerous published research articles investigating the mechanical properties of metal–matrix composites, very few investigated the thermal properties of the composites. In the present work, thermal properties such as thermal conductivity and thermal diffusivity of cast hybrid composites were evaluated. The particulate reinforcements were added in varied weight percentages to the molten LM13 alloy and were dispersed uniformly using a power-driven stirrer. The melt with the dispersed particulate reinforcements was then poured into a thoroughly dried sand mold, and the melt was allowed to solidify. The quality of the castings was ascertained through density evaluation followed by a microstructural examination. It was found that the composites with only the fly ash particles as a reinforcement were less dense in comparison to the composites cast with the quartz particulate reinforcement. However, the hybrid composite, with both particulate reinforcements were dense. The microstructure revealed a refined grain structure. The thermal diffusivity and thermal conductivity values were lower for the composites cast with only the fly ash reinforcement. On the other hand, the composites cast with only quartz as the particulate reinforcement exhibited higher thermal diffusivity and thermal conductivity. The specific heat capacity was found to be lower for the fly ash-reinforced composites and higher for the quartz-reinforced composites in comparison to the LM13 base matrix alloy. However, the highest value of thermal diffusivity and thermal conductivity were reported for the hybrid composites with a 10 wt.% inclusion of both fly ash and quartz particulate reinforcements.

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AA1050 metal matrix composites reinforced by high-entropy alloy particles via stir casting and subsequent rolling

Cited by 37 publications

References 40 publications

Effect of asymmetric rolling on microstructure and mechanical properties of aluminum matrix composites

Effect of asymmetric rolling on microstructure and mechanical properties of aluminum matrix composites

Preparation, Microstructure, and Mechanical Properties of Al Matrix Composites Reinforced with High‐Entropy Alloys: A Review

An Investigation of the Thermal Properties of LM13- Quartz- Fly-Ash Hybrid Composites

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