scholarly journals Wear of a rough disc in dry sliding contact with a smooth ball: experiment and modeling

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Andrzej Dzierwa ◽  
Pawel Pawlus
Keyword(s):  
Strong Correlation ◽  
Sliding Contact ◽  
Dry Sliding ◽  
Volumetric Wear ◽  
Sliding Surfaces ◽  
Rotating Discs ◽  
Dry Contact ◽  
42Crmo4 Steel ◽  
Disc Configuration ◽  
Ball On Disc

AbstractThe main objective of this work is to model wear of a disc which was subjected to dry contact with a ball in unidirectional sliding. Tribological tests of sliding pairs were carried out using a tribological tester T-11 in a ball-on disc configuration. Stationary balls made of 100Cr6 steel with a hardness of 62 ± 2 HRC co-acted with rotating discs with 42CrMo4 steel with a hardness of 40 ± 2HRC. Discs were machined by lapping, grinding, milling, and vapour blasting. The values of the Sq parameter of disc surfaces were between 0.1 and 5.86 µm. Wear volumes of the discs were lower for bigger roughness heights. The simulation of disc wear was conducted on the basis of the repetitive contact between sliding surfaces. Strong correlation was achieved between the modeled and measured volumetric wear levels.

scholarly journals The Influence of Disc Surface Topography after Vapor Blasting on Wear of Sliding Pairs under Dry Sliding Conditions

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 102 ◽  
Author(s):  
Dzierwa ◽  
Pawlus ◽  
Zelasko
Keyword(s):  
Surface Topography ◽  
Tribological Properties ◽  
White Light ◽  
Dry Friction ◽  
Dry Sliding ◽  
Disc Surface ◽  
Steel Disc ◽  
42Crmo4 Steel ◽  
Wear Tests ◽  
Ball On Disc

Wear tests were performed using a ball-on-disc tribological tester. In this study, 42CrMo4 steel disc of hardness 40 HRC co-acted with 100Cr6 steel ball with hardness of 60 HRC. Disc surfaces were created using vapor blasting to obtain values of the Sq parameter close to 5 µm. However, other disc surface topography parameters varied. Dry friction tests were carried out. Wear levels of discs and balls were measured using a white light interferometer Talysurf CCI Lite. It was found that the surface topography had a significant impact on tribological properties under dry sliding conditions. The research also allowed to identify significant dependencies between surface topography parameters and wear.

scholarly journals The Effect of Ball Burnishing on Tribological Performance of 42CrMo4 Steel under Dry Sliding Conditions

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2127 ◽  
Author(s):  
Slawomir Swirad ◽  
Pawel Pawlus
Keyword(s):  
Residual Stresses ◽  
Friction And Wear ◽  
Tribological Performance ◽  
Dry Sliding ◽  
Ball Burnishing ◽  
Surface Topographies ◽  
42Crmo4 Steel ◽  
Compressive Residual Stresses ◽  
Wear Tests ◽  
Ball On Disc

Ball burnishing appears to be a very promising approach for reducing surface height, generating compressive residual stresses and increasing hardness. Ball burnishing treatment was carried out using a Haas CNC Vertical Mill Center VF-1 equipped with the Ecoroll burnishing system. After burnishing, surface topographies of machined samples and hardness were measured. Wear tests were conducted using a ball-on-disc tribotester in dry sliding conditions. During tests, the friction force was monitored as a function of time. After tests, wear volumes were determined on the basis of surface texture measurements. Tests revealed that ball burnishing in most cases resulted in minimizing friction and wear of contacting elements.

scholarly journals Influence of the ringer's solution on wear of vacuum mixed poly(methyl methacrylate) bone cement in reciprocating sliding contact with AISI 316l stainless steel

2021 ◽  
pp. 11-11
Author(s):  
Fatima Zivic ◽  
Nenad Grujovic ◽  
Slobodan Mitrovic ◽  
Jovan Tanaskovic ◽  
Petar Todorovic
Keyword(s):  
Stainless Steel ◽  
Bone Cement ◽  
316L Stainless Steel ◽  
Sliding Contact ◽  
Dry Sliding ◽  
Aisi 316L ◽  
Wear Factor ◽  
Aisi 316L Stainless Steel ◽  
Ringer’S Solution ◽  
Dry Contact

This paper presents microstructural properties and damage behaviour of a vacuum mixed poly(methyl metacrylate) (PMMA) bone cement, during the sliding contact with AISI 316L stainless steel, under micro-loads. Influence of the Ringer's solution on the wear was analysed in comparison to dry contact. The variation of load did not produce any significant change of the wear factor while the increase in the sliding speed induced significant increases in the wear factor, more pronounced in the case of dry sliding. The obtained wear factors were in average higher for the sliding in Ringer's solution than those obtained under dry conditions. Significant fragmentation of the worn tracks, of irregular shapes with broken edges, was observed, slightly more pronounced for the dry contact. Many cavities and voids were formed on the wear track surface, but they did not extend into the bulk material. Higher loads produced more uniform and less fragmented wear tracks. Abrasive, adhesive wear and plastic deformation grooves were observed, as well as fatigue and erosive wear. Fatigue cracks developed in the direction normal to sliding. Network of fine craze cracks was exhibited on the surface of wear tracks, especially pronounced in the case of dry sliding. These results are important since they contribute to understanding the sites of crack initiation, and development mechanisms on the surface of PMMA bone cements, also including synergistic effects of physiological environments pertaining to the non-steady crack and craze behaviour and crack pattern development in PMMA.

Interaction of tungsten in dry sliding against steel under high density electric current

2019 ◽  
pp. 101-109 ◽  
Author(s):  
M. I. Aleutdinova ◽  
V. V. Fadin ◽  
Yu. P. Mironov
Keyword(s):  
Electrical Contact ◽  
Analysis Data ◽  
Dry Sliding ◽  
Sliding Surface ◽  
X Ray ◽  
Sliding Surfaces ◽  
Quenched Steel ◽  
Sliding Electrical Contact ◽  
A Current ◽  
Tungsten Steel

The possibility of creating a wear-resistant dry sliding electrical contact tungsten/steel was studied. It was shown that tungsten caused severe wear of the quenched steel counterbody due to unlimited plastic flow of its surface layer at a current density up to 150 A/cm2 . This indicated the impossibility of achieving satisfactory characteristics of such a contact. Low electrical conductivity and wear resistance of the contact tungsten/steel were presented in comparison with the known high copper/steel contact characteristics under the same conditions. X-ray phase analysis data of the steel sliding surfaces made it possible to state that the cause of the unsatisfactory sliding of tungsten was the absence of the necessary concentration of FeO oxide on the sliding surface of the steel. 

Effect of counterface materials on friction and wear of graphene-coated steel under dry sliding contact

2021 ◽  
Author(s):  
Sudesh Singh ◽  
Pooja Verma ◽  
Rakesh Kumar Gautam ◽  
Rajnesh Tyagi
Keyword(s):  
Friction And Wear ◽  
Sliding Contact ◽  
Dry Sliding ◽  
Coated Steel

An analytical solution and an experimental procedure for thermal field at the interface of dry sliding surfaces

Meccanica ◽  
2010 ◽  
Vol 46 (3) ◽  
pp. 589-595 ◽  
Author(s):  
Gennaro Cuccurullo ◽  
Vincenzo D’Agostino ◽  
Roberta Di Giuda ◽  
Adolfo Senatore
Keyword(s):  
Analytical Solution ◽  
Thermal Field ◽  
Dry Sliding ◽  
Experimental Procedure ◽  
Sliding Surfaces

Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718

2020 ◽  
pp. 106773
Author(s):  
Bin Zhao ◽  
Iyas Khader ◽  
Hanlian Liu ◽  
Tianfeng Zhou ◽  
Georg Konrath ◽  
...  
Keyword(s):  
Inconel 718 ◽  
Sliding Contact ◽  
Dry Sliding ◽  
Tribological Characterization ◽  
Laser Heated

scholarly journals The Effect of Surface Texturing on Dry Gross Fretting

Lubricants ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 92 ◽  
Author(s):  
Agnieszka Lenart ◽  
Pawel Pawlus ◽  
Slawomir Wos ◽  
Andrzej Dzierwa
Keyword(s):  
Friction And Wear ◽  
Surface Texturing ◽  
Tribological Performance ◽  
Disc Surface ◽  
Abrasive Jet Machining ◽  
Wear And Friction ◽  
Steel Disc ◽  
Disc Configuration ◽  
Effect Of Surface ◽  
Ball On Disc

The effect of steel disc surface texturing on dry gross fretting in a ball-on-disc configuration was studied. Dimples were created with abrasive jet machining. The tribological performance of sliding pairs, steel–steel and steel–ceramics, was experimentally studied. The character of surface texturing effect was related to the dominant wear type. During steel–steel contact, the presence of dimples on disc surfaces could lead to increases in wear and friction. However, the escape of wear debris into dimples could result in reductions of friction and wear in the steel–ceramics configuration.

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