Effect of microstructure on the oxidative wear behavior of plain carbon steel

Abouei, V.; Sadrnia, Hassan; Kheirandish, Shahram

doi:10.1016/j.wear.2006.11.009

Cited by 59 publications

(28 citation statements)

References 15 publications

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“…3) [32]. Here, the friction coefficient decreases [39,47] and converges to l & 1, which is comparable to the experimentally observed value for the dry sliding of steel surfaces [22,48], thus validating this surface model for the reproduction of experimental friction coefficients. Figure 4 shows the change in the friction behaviour when CNO and CND nanoparticles are present at various coverages when P z = 1.0 GPa.…”

Section: Effect Of Nanoparticle Coveragesupporting

confidence: 86%

Nonequilibrium Molecular Dynamics Investigation of the Reduction in Friction and Wear by Carbon Nanoparticles Between Iron Surfaces

et al. 2016

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For the successful development and application of novel lubricant additives, a full understanding of their tribological behaviour at the nanoscale is required, but this can be difficult to obtain experimentally. In this study, nonequilibrium molecular dynamics simulations are used to examine the friction and wear reduction mechanisms of promising carbon nanoparticle friction modifier additives. Specifically, the friction and wear behaviour of carbon nanodiamonds (CNDs) and carbon nano-onions (CNOs) confined between a-iron slabs is probed at a range of coverages, pressures, and sliding velocities. At high coverage and low pressure, the nanoparticles do not indent into the a-iron slabs during sliding, leading to zero wear and a low friction coefficient. At low coverage and high pressure, the nanoparticles indent into, and plough through the slabs during sliding, leading to atomic-scale wear and a much higher friction coefficient. This contribution to the friction coefficient is well predicted by an expression developed for macroscopic indentation by Bowden and Tabor. Even at the highest pressures and lowest coverages simulated, both nanoparticles were able to maintain separation of the opposing slabs and reduce friction by approximately 75 % compared to when no nanoparticle was present, which agrees well with experimental observations. CNO nanoparticles yielded a lower indentation (wear) depth and lower friction coefficients at equal coverage and pressure with respect to CND, making them more attractive friction modifier additives. Potential changes in behaviour on harder and softer surfaces are also discussed, together with the implications that these results have in terms of the application of the studied nanoparticles as lubricants additives.

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Section: Effect Of Nanoparticle Coveragesupporting

confidence: 86%

Nonequilibrium Molecular Dynamics Investigation of the Reduction in Friction and Wear by Carbon Nanoparticles Between Iron Surfaces

et al. 2016

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“…The resulting rise in temperature helps atmospheric oxidation over the wearing surface and formation of an oxide layer. This oxide layer gets removed by repeated and multiple contacts of pin asperities, and wear debris of oxide particles are generated . For SQ sample, due to the large and non‐uniformly distributed martensite particles (Figure ), the wear resistance of wearing surface is not uniform, as martensite is more resistance to wear in comparison with ferrite.…”

Section: Resultsmentioning

confidence: 99%

“…For all samples, the steady state friction curve has two parts: a first part with low friction coefficient and less fluctuations and a second part with higher friction coefficient and more fluctuations. The fluctuations in friction coefficient is caused by continuing process of removal of the oxide layer and its reformation and thickening . In the second part of friction coefficient curve, the fluctuations may also include the contribution resulting from the entrapment of wear debris between the sliding surfaces and activation of three‐body abrasion mechanism.…”

Section: Resultsmentioning

confidence: 99%

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

Ashrafi

Sadeghzade

Emadi

et al. 2016

steel research int.

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The aim of present study is to investigate the influence of heat treatment schedule on the microstructure, tensile properties, and wear behavior of dual phase (DP) steels. In this regard, a cold‐rolled low carbon steel (0.18% C, 1.25% Mn) is subjected to intercritical annealing (IA), step quenching (SQ), and intermediate quenching (IQ) heat treatment cycles to produce DP steels with different microstructures. The results show that the tensile strength, strength‐elongation balance, and wear resistance of DP steels change in the order of SQ < IA < IQ. Variation of work hardening rate (θ = dσ/dϵ) with stress for the IA treated DP steel shows a one stage behavior corresponding to stage III, where θ linearly decreases with increasing flow stress. In contrast, for IQ and SQ treated specimens, a two stage behavior corresponding to an initial rapid decrease of θ with stress (transition stage) followed by stage III hardening are observed. The dominant wear mechanism for DP steels produced by IA and IQ treatments is a combination of abrasion and oxidation, while for the SQ treated specimen, a combination of oxidation and delamination is observed.

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“…It is found that a harder matrix held an oxide layer more firmly compared with a softer one, which complied with the reported researches. [23,24] The longitudinal cross-section observation of the worn surfaces identified that the extent of plastic deformation in subsurface matrix of the low-hardness-tempered sorbite was more severe than those of high-hardness-tempered martensite and tempered troostite. For example, within a load ranging from 150 to 300 N, the thickness of the plastically deformed region reached approximately 70 to 140 lm in the former but only 15 to 20 lm in the latter.…”

Section: B Wear Mechanismsmentioning

confidence: 99%

Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

Wei

Wang

Zhao

et al. 2010

Metall Mater Trans A

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The wear behavior and mechanisms of a Cr-Mo-V cast hot-working die steel with three microstructures (tempered martensite, troostite, and sorbite) were studied systematically through the dry-sliding wear tests within a normal load range of 50 to 300 N and an ambient temperature range of 298 K to 673 K (25°C to 400°C) by a pin-on-disk high-temperature wear machine. Five different mechanisms were observed in the experiments, namely adhesive, abrasive, mild oxidative, oxidative, and extrusive wear; one or more of those mechanisms would be dominant within particular ranges of load and temperature. The transition of wear mechanisms depended on the formation of tribo-oxides, which was related closely to load and temperature, and their delamination, which was mainly influenced by the matrix. By increasing the load and ambient temperature, the protective effect of tribo-oxides first strengthened, then decreased, and in some cases disappeared. Under a load ranging 50 to 300 N at 298 K (25°C) and a load of 50 N at 473 K (200°C), adhesive wear was the dominant wear mechanism, and abrasive wear appeared simultaneously. The wear was of mild oxidative type under a load ranging 100 to 300 N at 473 K (200°C) and a load ranging 50 to 150 N at 673 K (400°C) for tempered martensite and tempered troostite as well as under a load of 100 N at 473 K (200°C) and a load ranging 50 to 100 N at 673 K (400°C) for tempered sorbite. At the load of 200 N or greater, or the temperatures above 673 K (400°C), oxidative wear (beyond mild oxidative wear) prevailed. When the highest load of 300 N at 673 K (400°C) was applied, extrusive wear started to dominate for the tempered sorbite.

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Effect of microstructure on the oxidative wear behavior of plain carbon steel

Cited by 59 publications

References 15 publications

Nonequilibrium Molecular Dynamics Investigation of the Reduction in Friction and Wear by Carbon Nanoparticles Between Iron Surfaces

Nonequilibrium Molecular Dynamics Investigation of the Reduction in Friction and Wear by Carbon Nanoparticles Between Iron Surfaces

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

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