SELF-LUBRICATING THIN FILMS FOR TOOL STEELS
Journal Title: Materials Engineering - Materialove inzinierstvo (MEMI) - Year 2012, Vol 19, Issue 2
Abstract
Specimens made from Vanadis 6 cold work tool steel were machined, ground, heat processed by standard regime and finally mirror polished. After that, they were layered with CrAgN. The Ag-content in the layers was chosen to 3 wt% and 15 wt% respectively. Microstructural analysis revealed that the addition of 3 wt%Ag did not influence the growth manner of the films but the addition of 15 wt%Ag has made considerable changes in the film growth. The layer with 3 wt%Ag had excellent adhesion on the steel substrate. On the other hand, the addition of 15%Ag had strongly negative impact on the coating adhesion. Similar effect of different Ag addition has been established also to both the hardness and the Young modulus of the films, also. Both films have superior tribological properties against hard material (alumina) as well as against soft counterpart (CuSn6 as-cast bronze).
Authors and Affiliations
Peter Jurči, Stanislav Krum
Interaction of sub-zero treated Cr-V ledeburitic steel with alumina,100 Cr6 steel and bronze in dry sliding
The interaction of the Vanadis 6 steel, processed without/with an application of sub-zero treatment, with alumina (hard counterface), 100Cr6-ball bearing steel (counterface of an intermediate hardness) and CuSn6 (soft co...
EFFECTIVNESS OF THE FATIGUE CRITERIA FOR COMBINED BENDING – TORSION LOADING
Most of mechanical components in the engineering are frequently subjected to combined loading, which can lead to sudden fatigue failure. In present work the fatigue life of plasma-nitrided and virgin specimens is studied...
PITTING CORROSION OF STAINLESS STEEL AT THE VARIOUS SURFACE TREATMENT
The stainless steel surface treatment is very important with regard to its pitting corrosion susceptibility. An effect of various types surfacing on pitting corrosion resistance of AISI 304stainless steel is investigated...
CYCLIC PLASTIC BEHAVIOUR OF UFG COPPER UNDER CONTROLLED STRESS AND STRAIN LOADING
The influence of stress- and strain-controlled loading on microstructure and cyclic plastic behaviour of ultrafine-grained copper prepared by equal channel angular pressing was examined. The stability of microstructure i...
COMPUTER CONTROLLED EXPERIMENTAL DEVICE FOR INVESTIGATIONS OF TRIBOLOGICAL INFLUENCES IN SHEET METAL FORMING
Sheet metal forming, especially deep drawing process is influenced by many factors. Blank holding force and drawbead displacement are two of them that can be controlled during the forming process. For this purpose, an e...