Wear mechanisms in ball-cratering tests with large abrasive particles

Stachowiak, Gwidon

doi:10.1016/j.wear.2003.10.029

Cited by 28 publications

(8 citation statements)

References 12 publications

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“…Also in this case, the sands from the desert differed from the general trend, due to their rounded morphology. Several authors previously reported the influence of the roundness of the abrasive particles on the damaging effects [29][30][31]. In fact, in spite of the quartz composition, both sands (Aswan and Djanet) showed a slight abrasive effect.…”

Section: Abrasive Effect Of the Sandsmentioning

confidence: 98%

Reduction of corrosion protection properties of organic coatings due to abrasive damage produced by natural sands

Rossi¹,

Deflorian²,

Risatti³

2006

Wear

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Section: Abrasive Effect Of the Sandsmentioning

confidence: 98%

Reduction of corrosion protection properties of organic coatings due to abrasive damage produced by natural sands

Rossi¹,

Deflorian²,

Risatti³

2006

Wear

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“…The new abrasion-corrosion tribometer described in this paper has been developed as an extension of the three-body abrasion studies using a ball-cratering method with coarse abrasives [61,62]. So far, majority of the tribocorrosion testing conducted using this new tribometer was carried out under three-body abrasion-corrosion conditions.…”

Section: Short Review Of Abrasion-corrosion Experimental Set-upsmentioning

confidence: 99%

New Experimental Rig to Investigate Abrasive–Corrosive Characteristics of Metals in Aqueous Media

Salasi

Stachowiak

2010

Tribol Lett

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A new tribometer to investigate a conjoint effect of three-body abrasion and corrosion has been developed. In this design, a flat wear sample is loaded against a rotating cylindrical disc counterface and the abrasive slurry is delivered to the contact interface. Capabilities of the newly developed tribometer have been assessed through conducting abrasion-corrosion tests involving simultaneous electrochemical measurements. In this work, the stability of the passive layer on stainless steel under three-body abrasive wear in a near neutral electrolyte was investigated using potentiodynamic polarization tests. 316L Stainless Steel wear samples were abraded by coarse garnet particles in an aerated sodium sulphate electrolyte. The effects of load and speed on the polarization curves and passivity of 316L steel were determined. It was found that under abrasion-corrosion conditions 316L steel became more thermodynamically active and the passive corrosion rate has increased. Increasing the contact load resulted in a small increase in the passive corrosion current, while increasing the rotating speed had the opposite effect of decreasing the current. Linear polarization resistance method was used to analyse corrosion current changes with time during abrasion-corrosion testing. The existence of three distinct stages was explained by the third-body effect on the corrosion potential and current. First stage was revealed by continuous decrease of corrosion potential. Then, the potential reached a plateau for the second and third stages. In the first and second stages, particle constraint in the contact zone plays the major role and a linear rise in corrosion current with time has been recorded. After a certain amount of surface roughening, no further increase in particles entrapment is expected. Therefore, in the third stage steady-state corrosion current values are anticipated. The rig developed can also be used to simulate two-body abrasion-corrosion. The capabilities of the new rig have been compared against other experimental set-ups used in studies of combined abrasion-corrosion behaviour.

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“…Some investigations were already done in order to compare the wear rate obtained with different abrasive particle materials and different types of slurries [18,19]. Studies with large particles size in micro-abrasion wear tests were already done [20][21][22]. However, no comparative studies with different abrasive particle size in the same test conditions were found.…”

Section: Introductionmentioning

confidence: 99%

Influence of the abrasive particles size in the micro-abrasion wear tests of TiAlSiN thin coatings

Andrade

Martinho

Silva

et al. 2009

Wear

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Ball rotating micro-abrasion tribometers are commonly used to carry out wear tests on thin hard coat-ings. In these tests, different kinds of abrasives were used, as alumina (Al2 O3 ), silicon carbide (SiC) or diamond. In each kind of abrasive, several particle sizes can be used. Some studies were developed in order to evaluate the influence of the abrasive particle shape in the micro-abrasion process. Nevertheless, the particle size was not well correlated with the material removed amount and wear mechanisms. In this work, slurry of SiC abrasive in distilled water was used, with three different particles size. Initial sur-face topography was accessed by atomic force microscopy (AFM). Coating hardness measurements were performed with a micro-hardness tester. In order to evaluate the wear behaviour, a TiAlSiN thin hard film was used. The micro-abrasion tests were carried out with some different durations. The abrasive effect of the SiC particles was observed by scanning electron microscopy (SEM) both in the films (hard material) as in the substrate (soft material), after coating perforation. Wear grooves and removed material rate were compared and discussed.

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Wear mechanisms in ball-cratering tests with large abrasive particles

Cited by 28 publications

References 12 publications

Reduction of corrosion protection properties of organic coatings due to abrasive damage produced by natural sands

Reduction of corrosion protection properties of organic coatings due to abrasive damage produced by natural sands

New Experimental Rig to Investigate Abrasive–Corrosive Characteristics of Metals in Aqueous Media

Influence of the abrasive particles size in the micro-abrasion wear tests of TiAlSiN thin coatings

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