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During the running-in of surfaces a change in roughness takes place. The presented model predicts this change for concentrated contacts using an elasto-plastic contact model based on a semi-analytical-method recently developed. Combining this method with a local coefficient of friction, which is determined using a mechanical threshold on the protective nature of the lubricant, and a strain related...
The reciprocating sliding friction and wear characteristics of five Si/SiC ceramic composites having different microstructures have been studied. The Si/SiC ceramic composites were prepared using natural materials, such as cotton fiber, wood powder, and jute fiber. The respective polymer composites were made from phenolic resin and then converted into Si/SiC ceramic composites by pyrolysis and liquid...
In the present article, the dry sliding wear behavior of aluminum matrix nanocomposites containing various amounts of Al 2 O 3 –AlB 12 (5, 10 and 15wt.%) particles was investigated. All specimens were prepared by mechanical milling of Al and Al 2 O 3 –AlB 12 nanocomposite powders, followed by hot pressing. Wear tests were carried out at room temperature...
The paper presents asymptotic modeling of the local contact of crossed elastic cylinders in reciprocating sliding wear under a prescribed constant normal load. The wear contact problem is formulated within the framework of the three-dimensional theory of elasticity in conjunction with Archard's generalized wear equation. It is shown that the asymptotic modeling approach, which maintains the experimentally...
Fe–Cr–Ni metastable austenitic stainless steel is widely used in industry because of its excellent performance of corrosion resistance in aggressive environment. The process of drawing austenitic stainless steel easily prompts to wear and the relevant friction behavior, under the condition of friction coupling plastic deformation, is seldom studied. This paper studies the friction behavior of SUS...
Results of experimental studies concerning the influence of permanent magnetic field on wear of dry sliding contact are presented.It was found that magnetic field of horizontal orientation is causing temporary reduction of material's hardness. It also facilitates and accelerates removal process of wear particles from the contact zone. Formation of bulges, consisting of accumulated and compacted anti-ferromagnetic...
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