The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The present work investigates microstructure evolution in pure aluminium under lubricated contact conditions. The initial wear scars were obtained in unidirectional sliding up to a pre-defined number of cycles N. After this pre-imparted severe plastic deformation, the sliding direction was reversed and the resulting microstructure was characterized using hardness measurements and microscopy techniques...
Two running-in processes, i.e., polishing a diamond-like carbon (DLC) coated disk and pre-sliding in ambient air, were suggested as a delamination suppression method for self-mating DLC coatings in water, and the effects of these methods were verified using a ball-on-disk tribometer. An a-C:H-type DLC coating was deposited on SUJ2 bearing steel balls and disks using plasma chemical vapor deposition...
This study was conducted to investigate the wear behavior of electrodeposited Ni-Fe-Al2O3 coating and to assess the effect of its multilayer (ML) structure. The ML Ni-Fe-Al2O3 coatings were deposited by frequent changing of duty cycle between two values of 90% and 20%. The matrix of alternative layers contained 28 and 54wt% Fe corresponding to the duty cycles of 90% and 20% respectively, with embedded...
The basic significance of a method of evaluating the anti-adhesion characteristics of diamond-like carbon (DLC) films by a reciprocating wear test using a high-frequency, linear-oscillation tribometer under a step loading condition was verified with a single test condition, and processes up to the occurrence of delamination were investigated in this study. The failure load, corresponding to the anti-adhesion...
This paper presents the results of a study of the mechanisms of delamination and the formation of longitudinal cracks in the structure of multi-layered nano-structured coatings to predict the mechanisms for further improvement of tool life and the reliability of metal-cutting tools. Various mechanisms of formation of longitudinal cracks and delaminations in coatings on rake and flank tool surfaces,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.