The structure and properties of a high-entropy alloy (HEA) subjected to saturation with boron atoms by combined electron-ion-plasma method are characterized. On HEA film 5 ?m thickness deposited on AISI 304 steel, (boron + chromium) 1 was then the system “(Cr B) / (HEA steel) substrate” irradiated pulsed electron beam. It is shown that wear resistance resulting more than 30 times higher origina...

The aim of this study was to investigate the effect of antagonist material and configuration on combined wear, which was produced by alternating toothbrush wear and simulated occlusal wear on one specimen. Worn volume and maximum worn depth comparisons were done using two antagonist materials (steel and ceramic) and two antagonist configurations (flat and round). For the material factor, worn v...

The aim of this paper was to study the effects of die life through shot peening treatments on AISI H13 steel, and tests were performed to study the influential parameters of the shot peening process. To evaluate the effects of microstructure and the die life of AISI H13 steel after steel shot peening processes, we conducted and evaluated roughness tests, micro hardness and wear tests, and SEM m...

Two kinds of CoCrNi composite coatings, CoCrNiMo and CoCrNiMoBC, were prepared by laser cladding on the base metal 304 stainless steel. The wear corrosion properties coatings studied tests electrochemical tests. Results show that addition B4C promotes generation ceramic phase, therefore improving microhardness coating enhancing its resistance, while simutaneously keeps excellent resistance. Ene...

In this study, four different alloys of steel blocks with a thickness 15mm were manufactured in order to develop an alternative plates used wear exposed areas construction machines, trucks, and asphalt production plants. To further increase the resistance blocks, their was reduced 10mm by hot-rolling method. Wear specimens obtained from rolled blocks. These abraded at 20N, 40N, 60N loads recipr...

J. Burja, F. Tehovnik, F. Vode, B. Arh, Institute of Metals and Technology, Ljubljana, Slovenia In this chromium slags that form during melting of chromium alloyed steels are examined. During melting and oxidation of these steel grades a considerable amount of chromium is lost, and gained back with slag reduction. Laboratory experiments were performed to study the mechanism of chromium oxide re...

Wear tests were carried out on different DLC coatings under lubricated and dry slip-rolling friction in a Twin-Disc Testing rig. The analysis of Acoustic Emission (AE) provided an easy and comfortable tool for monitoring the wear life of DLC coatings. A DLC coating in-service was indicated by the appearance of no or just single AE events due to single damages (crack, small spallings, etc.) to t...

Casting infiltration technology was used to fabricate a high-chromium coating on the surface of parent ZG45 steel with different Ni content. SEM, EDS analysis, CALPHAD-type calculations, Rockwell hardness test and impact wear were utilized investigate influence microstructure, resistance performance. The as-cast microstructure casting coatings content less than 2.82 wt.% pearlite matrix reticul...