A Novel Method for Quantitative Determination of Ultra-low Wear Rates of Materials, Part I: On Steels

Li, Y.-R.; Shakhvorostov, D.; Pereira, Gavin; Lachenwitzer, A.; Lennard, W. N.; Norton, P. R.

doi:10.1007/s11249-008-9401-7

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…The low-wear-rate method has been introduced and discussed extensively in Part I [10]. The main steps of the method are: (1) implantation of Au as a marker into the tested materials; (2) measurement of the amount and profile of Au by carbon-Rutherford backscattering spectroscopy (C-RBS); (3) wear testing of the implanted samples and (4) re-measurement of the amount and profile of Au by C-RBS and then calculation of extent of the loss of the gold during the wear process.…”

Section: Low-wear-rate Methodsmentioning

confidence: 99%

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A Novel Method for Quantitative Determination of Ultra-low Wear Rates of Materials, Part II: Effects of Surface Roughness and Roughness Orientation on Wear

Shakhvorostov

Lennard

et al. 2008

Tribol Lett

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A novel method of measurement of the very low wear-rates of materials in the ultra-mild wear regime, which involves the use of implanted gold as a marker, was used to understand the effects of surface roughness and roughness orientation on wear under reciprocating sliding conditions. AISI 1095 steel coupons with various Vickers hardness values and different surface roughness and roughness orientation relative to the sliding direction were tested under the same sliding conditions. It was found that parallel sliding causes more wear compared with transverse sliding for the harder samples (Vickers hardness (VH); 450 HV, 650 HV and 1000 HV). Furthermore, the average friction coefficient of parallel sliding is also higher than that of transverse sliding for these samples. Severe wear takes place when the samples are too soft (250 HV), resulting in the complete loss of implanted gold. Surface topographic images were taken before and after the wear tests. It was found that parallel sliding dramatically increases the surface roughness, while transverse sliding does not increase the surface roughness for harder samples (450 HV, 650 HV and 1000 HV). For the soft sample (250 HV), the surface roughness increases significantly under parallel or transverse sliding.

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Section: Low-wear-rate Methodsmentioning

confidence: 99%

“…Many studies have shown that surface texturing offers good performance from the boundary lubrication to hydrodynamic lubrication regimes [7][8][9]. Our new low-wear-rate method (see previous paper; [10]) was applied to further understand the behaviour of surface texture on wear performance.…”

Section: Introductionmentioning

confidence: 99%