Few-layered graphene reinforced Al-10 wt% Si-2 wt% Cu matrix composites

Şenyurt, Berk; Küçükelyas, Burak; Bellek, Mustafa; Kavak, Sina; Borand, Gökçe; Uzunsoy, Deniz; Ağaoğulları, Duygu; Akçamlı, Nazlı

doi:10.1016/j.jmrt.2022.09.049

Cited by 10 publications

(1 citation statement)

References 73 publications

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“…Comparison of a) average COF value and b) specific wear rate of [Sn 5 ×Si‐rich]⊚Al–matrix composites with other Al–matrix composites. [ 10,36,42,66–88 ] …”

Section: Resultsmentioning

confidence: 99%

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Dong,

Zou,

Kong

et al. 2023

Adv Eng Mater

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In this work, a novel Sn self‐lubricating Al matrix composites with in‐situ Si reinforced gradient structure ([Sn×Si‐rich]◎Al‐matrix composites) is proposed. [Sn×Si‐rich]◎Al‐matrix composites is successfully prepared by controlling synergistic separation of primary Si and Sn under rotating magnetic field. The results show the wear‐resistant structure of “soft Sn surrounding hard Si” persists in [Sn5×Si‐rich] layer. [Sn5×Si‐rich]◎Al‐matrix composites with 5 wt.% Sn addition is advised to balance self‐lubrication of Sn with its negative effects on hardness and tensile strength. The Vickers hardness of [Sn×Si‐rich] layer/Al‐matrix for [Sn5×Si‐rich]◎Al‐matrix composites reaches 1062 HV/120 HV, successfully achieving gradient design of mechanical properties. Meanwhile, tensile strength and average coefficient of friction (COF) value/wear rate are 263 MPa, 0.43/3.81×10‐4 mm3/(N·m), respectively. Furthermore, the average COF and wear rate of [Sn5×Si‐rich]◎Al‐matrix composites increase firstly, then decrease slightly, and finally increase, with increasing wear temperatures. And the lower COF/wear rate of 0.52/5.41×10‐4 mm3/(N·m) occurs at 300 °C as a turning point, because the soft Sn melts into liquid phase and can better spread over wear surface to form a self‐lubricating film to reduce wear. This study can accelerate the development and application of Sn self‐lubricating Al‐matrix composites in high‐temperature industrial systems for automotive lightweight and aerospace.This article is protected by copyright. All rights reserved.

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“…Comparison of a) average COF value and b) specific wear rate of [Sn 5 ×Si‐rich]⊚Al–matrix composites with other Al–matrix composites. [ 10,36,42,66–88 ] …”

Section: Resultsmentioning

confidence: 99%

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Dong,

Zou,

Kong

et al. 2023

Adv Eng Mater

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Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates

Mertdinç‐Ülküseven,

Ovalı‐Döndaş,

Süzer

et al. 2024

Adv Eng Mater

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Herein, investigations on the microstructural, physical, and mechanical properties of molybdenum disilicide (MoSi2)‐ and tungsten disilicide (WSi2)‐reinforced aluminum (Al)–copper (Cu) matrix composites are reported. Powder metallurgy methods such as mechanochemical synthesis (MCS), mechanical alloying (MA), cold pressing, and pressureless sintering are combined to produce composites. First of all, MoSi2 and WSi2 nanoparticles are synthesized by MCS and selective acid leaching, yielding reinforcement materials for Al–Cu matrix. Powder blends consisting of 95 wt% Al and 5 wt% Cu are mixed with metal disilicides at different weight percentages (1, 2, and 5 wt%). MA for 4 h is conducted on these overall blends using a high‐energy ball mill. Microstructural and thermal properties of the as‐blended and mechanically alloyed powders are determined, and then they are compacted under 450 MPa and sintered at 550 °C for 2 h. Mechanical characterization of the composites reveals an increase in hardness and wear resistance with an increasing amount of reinforcement content. Among bulk samples, 5 wt% WSi2‐reinforced composites have the highest microhardness (165 ± 15 HV) and lowest wear rate (1.69 × 106 μm3 Nm−1) values. However, under the compression forces, the highest toughness and strength are obtained from 2 wt%‐reinforced composites.

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High entropy (HfTiZrVNb)B2 ceramic particulate reinforced Al matrix composites: Synthesis, mechanical, microstructural and thermal characterization

Süzer,

Özçakıcı,

Tekinşen

et al. 2024

Ceramics International

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Few-layered graphene reinforced Al-10 wt% Si-2 wt% Cu matrix composites

Cited by 10 publications

References 73 publications

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates

High entropy (HfTiZrVNb)B2 ceramic particulate reinforced Al matrix composites: Synthesis, mechanical, microstructural and thermal characterization

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Few-layered graphene reinforced Al-10 wt% Si-2 wt% Cu matrix composites

Cited by 10 publications

References 73 publications

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Electromagnetic Preparation and Wear Behavior of In Situ Si‐Reinforced Al–Matrix Gradient Self‐Lubricating Composites

Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi2 and WSi2 Particulates

High entropy (HfTiZrVNb)B2 ceramic particulate reinforced Al matrix composites: Synthesis, mechanical, microstructural and thermal characterization

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Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates