Corrosion reduces wet abrasive wear of structural steel

Liu, Yueting; Mol, J.M.C.; Janssen, G. C. A. M.

doi:10.1016/j.scriptamat.2015.05.028

Cited by 14 publications

(18 citation statements)

References 14 publications

(17 reference statements)

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“…In seawater, the wear rate was the smallest. This order is the same as was obtained in sliding wear in these liquids [14]. For higher impact heights, the wear rate difference among three liquids decreases.…”

Section: Wear Rate Comparisonsupporting

confidence: 84%

“…In seawater, the ratio change is the most dramatic from less than 20% to roughly 60%, when the impact height increases from 0.2 mm to 1 mm. Additionally, the wear track, overall, is smooth except for the situation where the impact height is the least, 0.2 mm, which shows a level of roughness, similar to the situation in pure sliding [14]. …”

Section: Wear Track Analysismentioning

confidence: 71%

“…Typically, the interaction leads to a positive synergistic effect and results in higher wear rate. However, research has shown the beneficial effect of the interaction between corrosion and abrasion, where corrosion is able to modify the sample surface by dissolving the soft phase and leaving the hard phase protruding, and subsequently, abrasion redistributes the hard phase, increasing the wear resistance [14]. However, in real slurry transport situations, no noticeable wear difference between corrosive and non-corrosive mediums was observed and reported.…”

Section: Discussionmentioning

confidence: 99%

“…In a corrosive environment, especially electrochemical corrosion, the surface of the material changes and the change could potentially alter the original material properties like hardness, and therefore it influences the final wear rate. In a previous paper [14], the authors reported the micro-coupling effect, occurring in a multiphase material in an electrochemically corrosive environment. In that study, a pearlitic steel, consisting of ferrite and cementite, was exposed in seawater while subject to abrasive wear.…”

Section: Introductionmentioning

confidence: 99%

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Impact Wear of Structural Steel with Yield Strength of 235 MPa in Various Liquids

Liu

Janssen

2017

Coatings

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Abstract:The wear of pipelines, used in slurry transport, results in high costs for maintenance and replacement. The wear mechanism involves abrasion, corrosion, impact, and the interaction among them. In this work, we study the effect of impact on the wear mechanism and wear rate. Results show that when the effect of impact is small, the wear mechanism is dominated by electrochemically induced surface modification, which leads to a lower wear rate in a corrosive environment than in a non-corrosive environment. By contrast, when the effect of impact is large, the wear mechanism is drastically altered. In that regime plastic deformation is important. The influence of corrosion in the high impact regime can be neglected. Our findings show the importance of including impact effect in the distinction of wear of slurry pipes.

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Section: Wear Rate Comparisonsupporting

confidence: 84%

Section: Wear Track Analysismentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact Wear of Structural Steel with Yield Strength of 235 MPa in Various Liquids

Liu

Janssen

2017

Coatings

Self Cite

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“…The presence of voids in amorphous silicon (a-Si) and germanium (a-Ge) was postulated in the late 1960s by Brodsky and Title 2 and Moss and Graczyk, 3 with the aid of electron spin resonance (ESR) and small-angle electron diffraction measurements, respectively, to explain the low mass density of amorphous Si/Ge (by about 10-15%) from their crystalline counterparts. In the intervening decades, a number of experimental techniques, ranging from small-angle x-ray scattering (SAXS), 4 spectroscopic ellipsometry (SE), Fourier transform infrared spectroscopy (FTIR), 5 and effusion of hydrogen and implanted-helium measurements 6 in a-Si:H to nuclear magnetic resonance (NMR), 7 provided an impressive database of experimental information on structural properties of a-Si and its hydrogenated counterpart. By contrast, until recently, 8 computational efforts [9][10][11][12] to address structural and electronic properties of a-Si have been mostly limited to results obtained from small atomistic models, consisting of a few to several hundreds of atoms, depending upon the quantum-mechanical or classical nature of atomic interactions employed in building those models.…”

Section: Introductionmentioning

confidence: 99%

Effect of low-temperature annealing on void-related microstructure in amorphous silicon: A computational study

Paudel

Atta‐Fynn

Drabold

et al. 2019

J. Phys.: Conf. Ser.

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We present a computational study of the void-induced microstructure in amorphous silicon (a-Si) by generating ultra-large models of a-Si with a void-volume fraction of 0.3%, as observed in small-angle x-ray scattering (SAXS) experiments. The relationship between the morphology of voids and the intensity of scattering in SAXS has been studied by computing the latter from the Fourier transform of the reduced pair-correlation function and the atomic-form factor of amorphous silicon. The effect of low-temperature (≤ 600 K) annealing on the scattering intensities and the microstructure of voids has been addressed, with particular emphasis on the shape and size of the voids, by studying atomic rearrangements on the void surfaces and computing the average radius of gyration of the voids from the spatial distribution of surface atoms and the intensity plots in the Guinier approximation. The study suggests that low-temperature annealing can lead to considerable restructuring of void surfaces, which is clearly visible from the three-dimensional shape of the voids but it may not necessarily reflect in one-dimensional scattering-intensity plots.

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Influences of Load and Microstructure on Tribocorrosion Behaviour of High Strength Hull Steel in Saline Solution

et al. 2019

Tribol Lett

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The tribocorrosion behaviour of two different hull steels (namely, EH36 and EH47) was investigated using a ball-on-disk tribometer under varying normal loads from 10 to 100 N in a 3.5 wt% NaCl saline solution. Sliding in pure water was also performed for a comparison purpose. The results indicate that the corrosion products mainly consist of lath lepidocrocite (γ-FeOOH) with residual NaCl crystals when sliding against both steels EH36 and EH47 in the saline solution. Tribocorrosion on EH36 (pearlitic steel) shows lower coefficient of friction (COF) values than those obtained in water, while tribocorrosion on EH47 (bainitic steel) leads to higher COF values instead. The former is due to the formation of considerable hydroxide particulates and films with small sizes. In contrast, the latter is ascribed to the ploughing of hydroxides with smaller amounts and bigger sizes. In particular, the synergistic effects of corrosion and wear in tribocorrosion result in much higher total materials degradation, compared to that obtained through pure mechanical wear in water.

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Corrosion reduces wet abrasive wear of structural steel

Cited by 14 publications

References 14 publications

Impact Wear of Structural Steel with Yield Strength of 235 MPa in Various Liquids

Impact Wear of Structural Steel with Yield Strength of 235 MPa in Various Liquids

Effect of low-temperature annealing on void-related microstructure in amorphous silicon: A computational study

Influences of Load and Microstructure on Tribocorrosion Behaviour of High Strength Hull Steel in Saline Solution

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