LABORATORY INVESTIGATIONS OF WEAR RESISTANCE UNDER FRICTION OF A SURFACE LAYER OF 41CrAlMo7 STEEL AFTER GLOW DISCHARGE NITRIDING AS WELL AS ABLATION LASER TEXTURING
Journal Title: Tribologia - Year 2013, Vol 249, Issue 3
Abstract
The paper presents the results of laboratory investigations including measurements of selected parameters in the node of friction (temperature, friction force, wear resistance) with the use of the measured line method for the surface layer of samples steel 41CrAlMo7 after nitriding and laser texturing in combination with cast iron samples. Surface layers after glow discharge nitriding steel were modified using ablative laser micromachining to change its macro- and micro-geometry. In the manufacture regular shaped oil micro-channels and spherical microparticles, we used a Nd: YAG laser with a special focusing system. Comparative research has been subjected to the steel surface topography formed by conventional machining and plasma nitriding and modified after nitriding and laser ablation micromachining. The laboratory tribological investigation used the "pin on disc" method based on a T-11 tribometer. The best results of increasing wear resistance under friction was obtained for the association sample made of steel 41CrAlMo7 after glow discharge nitriding and ablative laser texturing in the geometric arrangement mico-oil containers (micro spherical cap) with a degree of covering of about 25% worked with cast iron anti-samples.
Authors and Affiliations
Wojciech Napadłek, Czesław Pakowski, Adam Woźniak
Wpływ korozji na eksploatację kompozytowych tarcz hamulcowych
THE TRIBOLOGICAL PROPERTIES OF DLC COATINGS LUBRICATED WITH THE BIODEGRADABLE CUTTING FLUID
This paper presents the tribological results of diamond-like carbon DLC a type of a-C:H coating deposited on SW7M steel using the technique of chemical vapour deposition CVD. An observation of the coating structure was c...
ZACIERANIE I PITTING STALOWEGO WĘZŁA TARCIA Z ELEMENTAMI POKRYTYMI POWŁOKAMI NISKOTARCIOWYMI NANOSZONYMI METODAMI PVD
W artykule przedstawiono wyniki badań zacierania i powierzchniowej trwałości zmęczeniowej (pittingu) modelowego węzła tarcia aparatu czterokulowego smarowanego mineralnym olejem wzorcowym RL 219, syntetycznym polialfaole...
INFLUENCE OF A TRACK CONFIGURATION ON THE RESISTANCES OF MOVEMENT OF A SCRAPER PIPE CONVEYOR
Nowadays, scraper pipe conveyors are implemented in a wider range in many industrial branches because of technological and ecological reasons and industrial safety. Besides many advantages, like simple construction and s...
WPŁYW OBNIŻANIA TEMPERATURY NA ZMIANĘ MODUŁU YOUNGA ORAZ WSPÓŁCZYNNIKA TARCIA WYBRANYCH ŚLIZGOWYCH MATERIAŁÓW POLIMEROWYCH
Zmiany temperatury w przypadku materiałów polimerowych są przyczyną zmian własności materiału, a co za tym idzie i właściwości tribologicznych par ślizgowych. Tematem podjętym w niniejszym artykule jest określenie zmiany...