The Influence of Low Melting Elements (Pb, Bi, Cd, In) on Tribological Properties of Al–Si–Cu Alloys

Mezrin, A. M.; Shcherbakova, O. O.; Muravyеva, T. I.; Шкалей, И. В.; Загорский, Д. Л.

doi:10.3103/s1068366619050088

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…It consists of hardening at 500 ℃ during 6 hours, hardening in water (mode T4), and precipitation heat treatment at 175 ℃ during 6 hours (mode T6). It is shown [8] that such heat treatment provides the best values of the hardness index. Samples were cleaned with acetone before testing.…”

Section: Tribological Testsmentioning

confidence: 99%

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Evolution of the Mechanical Properties of the Surface Layers of Aluminum Alloys under the Conditions of Sliding Friction

Torskaya

Mezrin

2021

KEM

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Mechanical properties of surface layers of aluminum alloys before and after friction tests are studied by nanoindentation. The influence of the composition of the alloys on these properties is analyzed. It is obtained that as a result of wear and tear, relatively compliant layer is formed on the surface of one of the alloys. Another sample demonstrates relatively rigid film at the surface of the friction path. Conclusions about different mechanisms of the wear and tear of alloys are made based on the analysis.

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Section: Tribological Testsmentioning

confidence: 99%

“…These conditions mostly cause wear. Good antifrictional and mechanical properties can be obtained by addition multiple elements to the aluminum alloys, including low-melting metals (a solid lubricant) [8,9]. Low-melting metals provides self-lubricating effect due to friction heating.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Mechanical Properties of the Surface Layers of Aluminum Alloys under the Conditions of Sliding Friction

Torskaya

Mezrin

2021

KEM

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“…Many studies showed that several inorganic materials with layered structure (MoS 2 , graphite and FeS) have a lubricating effect and are more widely used in tribological applications (Gafsi et al , 2021). However, other materials can also exhibit good lubricity despite not having a layered structure, including soft metals, polytetrafluoroethylene, polyimide and bismuth (Bi) (Mezrin et al , 2019; Zhang et al , 2020). Yin et al (2019) added Bi and FeS particles in the copper alloy matrix.…”

Section: Introductionmentioning

confidence: 99%

Effects of ball milling and load on transfer film formation of copper-based composites

Yin

Zhang

et al. 2022

ILT

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Purpose This paper aims to investigate how ball milling (BM) and load influence transfer film on counterbody and the correlation between transfer film and tribological properties of copper-based composites. Design/methodology/approach The copper-based mixed powders preprocessed by BM for different times were used to manufacture sintered materials. Specimens were tested by a custom pin-on-flat linear reciprocating tribometer and characterized prior and after tests by optical microscope, scanning electron microscope and energy-dispersive spectroscopy. Image J® and Taylor-hobson-6 surface roughness meter were used to quantify the coverage and thickness of the transfer film. Findings Main results show that an appropriate amount of BM time and applied load can contribute to the formation of the transfer film on counterbody and effectively improve the tribological properties of the copper-based material. The transfer film coverage is linearly related to the friction coefficient, thickness of transfer film and wear volume. As the transfer film coverage increases, the coefficient of friction decreases. As the thickness of the transfer film increases, the amount of wear increases. Originality/value This work intends to control and optimize the formation of transfer film, thereby helping improve the tribological properties of materials and providing a reference to guide the preparation of Cu-based composites with excellent tribological properties.

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“…In [ 8 ], antifriction aluminum-based alloys were studied. It was noted that the addition of low-melting components such as Bi, Cd, In and Pb to the Al-Si-Cu system leads to an increase in hardness and reduction in wear rate.…”

Section: Introductionmentioning

confidence: 99%

Properties of Journal Bearing Materials That Determine Their Wear Resistance on the Example of Aluminum-Based Alloys

Миронов

Гершман

et al. 2021

Materials

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Potential relations of tribological characteristics of aluminum antifriction alloys with their compositions and mechanical properties were investigated. In this regard, the properties of eight aluminum alloys containing tin from 5.4% to 11% doped with lead, copper, silicon, zinc, magnesium, and titanium were studied. Mechanical properties such as hardness, strength, relative extension, and impact strength were analyzed. Within the tribological tests seizure load and wear of material were evaluated and secondary structures were studied afterwards. The absence of a definitive correlation between tribological behavior and mechanical properties was shown. It was determined that doping tin over 6% is excessive. The seizure load of the alloys increases with the magnesium content. Secondary structures of the alloys with higher wear rates contain one order less magnesium and tin.

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The Influence of Low Melting Elements (Pb, Bi, Cd, In) on Tribological Properties of Al–Si–Cu Alloys

Cited by 3 publications

References 4 publications

Evolution of the Mechanical Properties of the Surface Layers of Aluminum Alloys under the Conditions of Sliding Friction

Evolution of the Mechanical Properties of the Surface Layers of Aluminum Alloys under the Conditions of Sliding Friction

Effects of ball milling and load on transfer film formation of copper-based composites

Properties of Journal Bearing Materials That Determine Their Wear Resistance on the Example of Aluminum-Based Alloys

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