Improvement in dry sliding wear resistance of Al-17Si-5Cu alloy after an enhanced heat treatment process

Hazra, Biplab; Baranwal, Pankaj; Bera, Supriya; Show, Bijay Kumar

doi:10.1016/s1003-6326(18)64814-9

Cited by 14 publications

(4 citation statements)

References 14 publications

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“…In another study [12], the coefficient of friction of hypereutectic Al-14wt%Si-Cu alloy subjected under dry sliding pin-on-disk wear was reported in the range of 0.15-0.6, which are comparable to those computed in this article. Comparable results were also reported for Al-17Si-Cu alloys [14], Al-57.5Si-Cu-Mg [19], LM30-sillimanite composite [20] and among others.…”

Section: Wear Analysissupporting

confidence: 65%

“…Focus of most research on this subject has been to use alloying elements during casting to produce secondary alloys with comparable results to the primary alloys [8]- [10]. Wear is among the most significant property for automotive application of cast Al-Si alloys and various studies have been successfully conducted to understand the wear mechanisms and improve wear resistant of these alloys [11]- [14]. Despite this progress, there are very few publications reporting on the evaluation of wear performance of the secondary cast Al-Si alloys for automotive application.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear Characteristics of Recycled Cast Al-6Si-3Cu Alloys

Mwema¹,

Obiko²,

Leso³

et al. 2019

Tribol. Ind.

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Recycling of Al-Si alloys for high integrity structural components for the automotive industry applications has gained attention in the recent times. In this article, scrap of cylinder heads containing 6.01%Si and 2.62%Cu were recycled by casting into four alloys invariants: base alloy (no alloying elements added), 0.02%Ca, 0.38%Fe and 0.9%Fe+0.45%Mn additions. The structural properties were analysed through optical and SEM/EDS microscopy, X-ray diffraction (XRD). The wear characteristics of the alloys were investigated using a multi-pass ball on the flat reciprocating method under a normal load of 30 N and velocity of 4 mm/s. The results showed delamination and adhesive wear as the predominant wear mechanisms for the recycled Al-Si alloys. The base and 0.02%Ca alloys exhibited the lowest coefficients of friction and rates of wear. A comparison of the wear data to the published data on primary alloys revealed that our secondary alloys have the potential for applications in the automotive industry.

show abstract

Section: Wear Analysissupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Wear Characteristics of Recycled Cast Al-6Si-3Cu Alloys

Mwema¹,

Obiko²,

Leso³

et al. 2019

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

“…AlN alloys are High-Temperature Self-Lubricating Metal Nitride-Based Nanostructure Composite Films DOI: http://dx.doi.org/10.5772/intechopen.86124 usually considered as a superior oxidation resistant due to the formation of Al 2 O 3 layers, which prevent oxygen diffusion toward the coating interior. In addition, Al and Al alloys exhibit low wear resistance although they are used in a wide range of automobile and aerospace industries [11]. Yang et al [12] prepared Mo1-x Alx N thin films on stainless steel coins, alumina sheet, and silicon wafer substrates by using dc reactive magnetron sputtering technique and studied the effect of N2 and Al content (0.06-0.33) on the coating properties including structural, hardness, and oxidation resistance.…”

Section: Molybdenum Nitride Tungsten Nitride and Vanadium Nitride-bmentioning

confidence: 99%

High-Temperature Self-Lubricating Metal Nitride-Based Nanostructure Composite Films

Ju¹

2019

Friction, Lubrication and Wear

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The film technology is one of the most efficient methods of modifying the surface properties of materials. The focus of recent attention in the solid lubricating materials is on the hard transition metal nitride films' excellent high-temperature tribological properties applied in powertrains and cutting tools. This chapter reviewed the formation mechanism of Magnéli phases and the influence of Magnéli phases on the high-temperature tribological properties of hard transition metal nitride films synthesized using magnetron sputtering. The self-lubricating behavior and wear mechanism of the Magnéli phases are discussed from the point of view of crystallography. Some methods to enhance the wear resistance property of the metal nitride film are also discussed.

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“…Moreover, the needle-like Al 5 FeSi brittle phase formed in the alloy tends to cause stress concentration and reduce the mechanical properties of the Al-Si alloy. Consequently, this remains a challenge for Al-Si alloys [ 4 , 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Cast Al-Si-Cu-Mg-Ni-Cr Alloys: Effects of Time and Temperature on Two-Stage Solution Treatment and Ageing

Qin

Liu

et al. 2023

Materials

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Ameliorating the high-temperature performance of cast Al-Si alloys used as engine components is essential. The effects of different T6 heat-treatment processes on the microstructure and mechanical properties of cast Al-Si-Cu-Mg-Ni-Cr alloys were investigated in the present study. The results demonstrate that, under the optimal solution treatment conditions of 500 °C for 2 h and 540 °C for 4 h, the T-Al9FeNi phase was present in the alloy, and the roundness of primary Si and the aspect ratio of eutectic Si in the alloy reached valley values of 1.46 and 2.56, respectively. With increasing ageing time at 180 °C, the tensile strength significantly improved, while the microhardness first increased and then decreased. When the ageing time was 4 h, microhardness reached a peak value of 155.82 HV. The fracture characteristics changed from quasi-cleavage to the coexistence of quasi-cleavage and dimples. After heat treatment, the high-temperature tensile properties of the alloy improved, which is a significant advantage compared to the as-cast alloy. The stable Al3Ni and Al9FeNi phases inhibited the cracking of the alloy at 350 °C.

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Improvement in dry sliding wear resistance of Al-17Si-5Cu alloy after an enhanced heat treatment process

Cited by 14 publications

References 14 publications

Wear Characteristics of Recycled Cast Al-6Si-3Cu Alloys

Wear Characteristics of Recycled Cast Al-6Si-3Cu Alloys

High-Temperature Self-Lubricating Metal Nitride-Based Nanostructure Composite Films

Microstructure and Mechanical Properties of Cast Al-Si-Cu-Mg-Ni-Cr Alloys: Effects of Time and Temperature on Two-Stage Solution Treatment and Ageing

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