scholarly journals Generalized rabinowicz’ criterion for adhesive wear for elliptic micro contacts

2017 ◽  
Author(s):  
Valentin L. Popov
Keyword(s):  
Adhesive Wear ◽  
Rabinowicz Criterion

scholarly journals 60 years of Rabinowicz’ criterion for adhesive wear

Friction ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 341-348 ◽  
Author(s):  
Elena Popova ◽  
Valentin L. Popov ◽  
Dae-Eun Kim
Keyword(s):  
Adhesive Wear ◽  
Rabinowicz Criterion

scholarly journals GENERALIZED ARCHARD LAW OF WEAR BASED ON RABINOWICZ CRITERION OF WEAR PARTICLE FORMATION

2019 ◽  
Vol 17 (1) ◽  
pp. 39 ◽  
Author(s):  
Valentin Popov
Keyword(s):  
Elastic Energy ◽  
Normal Force ◽  
Adhesive Wear ◽  
Wear Particle ◽  
Work Of Adhesion ◽  
Wear Volume ◽  
Wear Particles ◽  
Work Of Separation ◽  
Sliding Distance ◽  
Rabinowicz Criterion

According to the Archard law of adhesive wear, the wear volume is proportional to the normal force, the sliding distance, and inversely proportional to the hardness of the softer of contact partners. This law does not contain any properties characterizing “adhesion” of materials, e.g. the work of separation, either inside of the material or at the interface. The criterion for formation of wear particles, first formulated by Rabinowicz in 1958, on the contrary, is based on the interplay of elastic energy and work of adhesion and contains as governing parameters the modulus of elasticity, hardness and the work of separation. Following recent advances in understanding and simulation of wear, we discuss the ways how both laws could be melted together to a “generalized” Archard-Rabinowicz law of wear.

scholarly journals Simulation and Experimental Study on Wear of U-Shaped Rings of Power Connection Fittings under Strong Wind Environment

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 735
Author(s):  
Songchen Wang ◽  
Xianchen Yang ◽  
Xinmei Li ◽  
Cheng Chai ◽  
Gen Wang ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Adhesive Wear ◽  
Surface Hardness ◽  
Wear Depth ◽  
Strong Wind ◽  
Wear Model ◽  
Wind Environment ◽  
Simulation Results ◽  
Oxidation Wear ◽  
Good Agreement

The objective of this study was to investigate the wear characteristics of the U-shaped rings of power connection fittings, and to construct a wear failure prediction model of U-shaped rings in strong wind environments. First, the wear evolution and failure mechanism of U-shaped rings with different wear loads were studied by using a swinging wear tester. Then, based on the Archard wear model, the U-shaped ring wear was dynamically simulated in ABAQUS, via the Umeshmotion subroutine. The results indicated that the wear load has an important effect on the wear of the U-shaped ring. As the wear load increases, the surface hardness decreases, while plastic deformation layers increase. Furthermore, the wear mechanism transforms from adhesive wear, slight abrasive wear, and slight oxidation wear, to serious adhesive wear, abrasive wear, and oxidation wear with the increase of wear load. As plastic flow progresses, the dislocation density in ferrite increases, leading to dislocation plugs and cementite fractures. The simulation results of wear depth were in good agreement with the test value of, with an error of 1.56%.

Investigation of the Suitability of Surface Treatments for Dry Cold Extrusion by Process-Oriented Tribological Testing

2015 ◽  
Vol 651-653 ◽  
pp. 473-479 ◽  
Author(s):  
Marco Teller ◽  
Markus Bambach ◽  
Gerhard Hirt ◽  
Ingo Ross ◽  
André Temmler ◽  
...  
Keyword(s):  
Metal Forming ◽  
Adhesive Wear ◽  
Pure Aluminum ◽  
Surface Treatments ◽  
Cold Extrusion ◽  
Workpiece Material ◽  
Initial Yield Stress ◽  
First Results ◽  
Tailored Surfaces ◽  
Steel Aisi

In cold extrusion of aluminum alloys adhesive wear can be prevented by an excessive lubrication of the process. While this causes additional process steps also environmental risks have to be addressed. Hence, dry metal forming, i.e. avoiding lubrication by means of coatings and topography modifications is highly desirable. In this paper first results concerning the behavior of tailored surfaces under dry metal forming conditions for pure aluminum are presented. Different surface treatments (laser polishing and Mo2BC coating) of the tool steel AISI H11 are tested in a compression-torsion-tribometer under conditions adapted from cold extrusion. Normal stresses six times higher than the initial yield stress of the tested workpiece material pure aluminum (AA1050-O) are applied. Furthermore, a strategy for the characterization of aluminum adhesions to the tool is introduced. The influences of different topographies and the presence of a coating on the loss of material due to adhesive wear are investigated.

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