The study presents a possible mechanism to produce carbides and diborides of transition metals, such as titanium, vanadium, chromium zirconium. carbothermal synthesis metal has defined the direct dependence between thermodynamic stability oxides temperature range reduction onset (the stronger oxide, higher value is). It reaches 2000-2100, 1500-1600, 1300-1400 2100-2200°C for TiC, VC 0,88 , Cr 3...

Ni-Hard4 white cast iron is excellent wear resistant material and has been widely used in wearaffected equipment operated under extreme conditions, such as in mineral processing, cement, copper and iron manufacturing. In this study the effect of titanium addition (1.2, 0.7 and 0.2 wt.%) to the Ni-hard 4 cast iron with the nominal composition of Si= 1.5%, Mn=0.5%, C=3%, P=0.05%, S= 0.05%, Mo= 0....

Both erosive and abrasive wear are common in mechanical systems moving components industrial production. Once they occur machine parts, the task of breakdown maintenance should be carried out, leading to high production costs. Previous research has shown that high-chromium cast iron (HCCI), a commonly used wear-resistant material, experiences repeated particle impacts break up chromium carbides...

In the present work, transitional wear of atmospheric plasma sprayed Cr2O3 and Cr3C2 coatings on low carbon steel substrate have been investigated with coating thickness 100μm 200μm. The produced coated uncoated mild samples were characterized by means microscopic examinations, hardness sliding tests for varying parameters load, speed, distance, SEM analysis carried out characterization studies...

Titanium carbide is used as an attractive reinforcement to produce particulate metal matrix composites. One of the problems to use this carbide as a reinforcement in copper-based composites is the lack of wetability in Cu-TiC system. This property improves as the C/Ti ratio in carbide decreases. Problems to use this carbide as a reinforcement in copper-based composites is the lack of wetabiity...

In the current practice of applying carbide-based coatings by thermal spraying, starting material usually contains a metal binder. However, it is important to study possibility spraying binder-free carbides, since components reduce operating temperature and corrosion resistance cermet coatings. this work, powder chromium carbide, Cr3C2, was sprayed using CCDS2000 detonation gun. Acetylene–oxyge...

This paper presents the results of a study on preparation and characterization Cr-DND/MoN detonation chromium-nanodiamond coating deposited cemented tungsten carbide (WC–3 wt.% Co) mill blades using Arc-PVD electrodeposition methods. The physical mechanical characteristics coatings were investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), XRD analysis,...