Impact of aging temperature on the metallurgical and dry sliding wear behaviour of LM25 / Al2O3 metal matrix composite for potential automotive application

Ravinath, Harinath; Ahammed, Ijas; Harigovind, P; S, Achu Devan; R, Aravind Senan V; Shankar, Karthik V.; Nandakishor, S.

doi:10.1016/j.ijlmm.2023.01.002

Cited by 11 publications

(8 citation statements)

References 45 publications

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“…Figure 10 represents the 20 wt% SiC configuration, where a higher quantity of debris, pores, micro cracks, and adhesion debris are visible [69,70]. These may limit the wear and mechanical properties of the material.…”

Section: Morphology Of Worn Surfacesmentioning

confidence: 99%

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Pawar¹,

Gohari

Ahmed

et al. 2024

Mater. Res. Express

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This study aimed to investigate the tribological and microstructural characteristics of LM26 composites reinforced with silicon carbide to evaluate their suitability for high-temperature applications. For the sample fabrication, the modified stir-casting method was optimized using a Taguchi L16 orthogonal array. The wear rate and friction behavior were evaluated using the Taguchi's S/N ratio analysis. When SiC was incorporated into the composite, the wear resistance increased by up to 15 wt. %. The wear resistance of the LM26/SiC composite was improved compared to that of the pure LM26 aluminum alloy. The results of this study provide useful information to improve the wettability of metal matrix composites made from commercial-grade LM26 aluminum alloy by adjusting the SiC weight percentage. This type of composite has the potential as a replacement material for traditional applications such as heat sinks, heat exchanger fins, and electronic packaging.

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Section: Morphology Of Worn Surfacesmentioning

confidence: 99%

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Pawar¹,

Gohari

Ahmed

et al. 2024

Mater. Res. Express

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“…After solutionizing (at 538°C for 8 h), secondary phases or precipitates of the LM25 alloy that may have formed during casting were dissolved to create a more homogeneous microstructure, as shown in Figure 3(c). Another study for AMCs showed the same observation by Ravinath et al 34 According to Ravinath et al, creating a homogeneous microstructure through solutionizing helps enhance the mechanical properties and performance of the LM25 alloy. It promotes uniformity in the grain size distribution of alloying elements and reduces the presence of any potential defects or inhomogeneities that could compromise the material's structural integrity.…”

Section: Morphological Evaluationsupporting

confidence: 62%

“…58 However, the material's surface can become smoother at higher sliding velocities due to forming a protective oxide layer, leading to a decreased wear rate. 34…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, Bhasha and Balamurugan 34 studied the mechanical and strengthening characteristics of Al6061-based particulate hybrid AMCs incorporating rice husk ash (RHA) and TiC (titanium carbide) particles. The stir-casting method created composites with varied RHA and TiC content.…”

Section: Overviewmentioning

confidence: 99%

“…The author's findings can be used to optimize processing parameters and provide information about the precise temperatures at which reactions occur. Recently, Ravinath et al 34 investigated the effect of ageing temperatures on LM25 (low melting point 25) alloy reinforced with 10 wt% Al 2 O 3 particles. They observed that ageing at 155°C substantially increased the hardness values of LM25 alloy reinforced with 10 wt% Al 2 O 3 particles and decreased wear rate by enhancing sliding velocity.…”

Section: Overviewmentioning

confidence: 99%

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Influence of ageing temperature on the tribological characteristics of LM25/Al₂O₃/SiC hybrid metal matrix composite for lightweight applications

Shankar,

Fathi,

Saleh

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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The demand for hybrid composites has lately increased due to their extraordinary qualities, which include unique mechanical, tribological, and physical capabilities not found in other materials. These composites improve performance and utility by mixing different reinforcing components, making them highly sought after. However, there is a study gap on the effects of long-term ageing on the tribological characteristics of LM25 (Al–6.6Si–0.2Mg)/Al2O3/SiC metal matrix composites (MMCs). As a result, extensive studies on the influence of ageing temperature on the tribological properties of LM25/Al2O3/SiC MMCs via long-term ageing effects still need to be included. Therefore, this study investigated the metallurgical and hardness properties of stir-cast LM25 alloy reinforced with Al2O3 and SiC particulates with varying ageing temperatures. Furthermore, dry sliding wear behaviour is also examined. The investigation concluded that adding micron-sized Al2O3 and SiC particles to LM25 improves hardness and tribological properties. As the ageing temperature increased, the eutectic particles became coarser. Furthermore, the result illustrates that the coefficient of friction (COF) values also enhanced with wear rates. Higher loads increased the wear rate and COF, whereas higher sliding speeds decreased the COF and wear rate.

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Mechanical and Tribological Properties of Hybrid and Monolithic Reinforced Hypoeutectic Al–Si Matrix Composites

Rezaei,

Nazemnezhad,

Farahmandrad

2024

Adv Eng Mater

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This study investigates the combined influence of Si element and reinforcing particles on the hardness and wear performance of aluminum matrix composites. The composites in focus include Fe‐based metallic glass (FMG) monolithic reinforced and FMG/SiC hybrid reinforced Al‐5 wt% Si matrix composites, fabricated through spark plasma sintering (SPS). A comprehensive investigation was carried out, encompassing the analysis of microstructural attributes and the examination of worn surfaces through field emission scanning electron microscopy. Additionally, the study scrutinized two pivotal factors—hardness and density—recognizing their pivotal roles in determining the tribological performance of these composites. The experimental findings demonstrated the presence of an oxide protective layer on the worn surfaces of all specimens. Although, FMG/SiC hybrid reinforced Al‐5 wt% Si matrix composite possessed the highest hardness value, the best tribological performance was observed in Si‐bearing monolithic reinforced composite. The addition of Si to the matrix of monolithic reinforced composite facilitated improved densification behavior and enhanced the distribution of reinforcing particles, resulting in a more stable and protective oxide layer in this specific sample. Furthermore, the study identified a transition in the operative wear mechanisms from delamination to mild abrasion and adhesion with the inclusion of Si element.This article is protected by copyright. All rights reserved.

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Impact of aging temperature on the metallurgical and dry sliding wear behaviour of LM25 / Al2O3 metal matrix composite for potential automotive application

Cited by 11 publications

References 45 publications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Influence of ageing temperature on the tribological characteristics of LM25/Al₂O₃/SiC hybrid metal matrix composite for lightweight applications

Mechanical and Tribological Properties of Hybrid and Monolithic Reinforced Hypoeutectic Al–Si Matrix Composites

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Impact of aging temperature on the metallurgical and dry sliding wear behaviour of LM25 / Al2O3 metal matrix composite for potential automotive application

Cited by 11 publications

References 45 publications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Influence of ageing temperature on the tribological characteristics of LM25/Al2O3/SiC hybrid metal matrix composite for lightweight applications

Mechanical and Tribological Properties of Hybrid and Monolithic Reinforced Hypoeutectic Al–Si Matrix Composites

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Influence of ageing temperature on the tribological characteristics of LM25/Al₂O₃/SiC hybrid metal matrix composite for lightweight applications