Wire + Arc Additive Manufacturing (WAAM) is an advanced manufacturing technology by inexpensive Gas Tungsten Welding (GTAW) technology. Key microstructural features of the as-built WAAM alloy include large columnar β grains, grain boundary α colonies, and Heat Affected Zone (HAZ) banding, which generally leads to low ductility anisotropy. In this study, Ti–6Al–xV (x = 0, 2, 4) alloys were prepa...

The influence of various preparation methods on the performance of V-Nb-0 catalysts has been investigated. It was found that the activity and selectivity of a vanadium site depend on the nature of the neighbouring atoms. Vanadium neighbours provide activity, while niobium neighbours provide selectivity. Careful preparation of these catalysts ensures a homogeneous distribution and good mixing of...

This work studies the effect of incorporating a mix reinforcement particles hard and soft nature on microstructure mechanical physical properties high-strength aluminum alloy, AA7075. A friction stir processing technique was used for compositing surface this alloy. The vanadium carbide (VC) selected to be reinforcement, while boron nitride (BN) graphene nanoplates (GNPs) were chosen as reinforc...

Since the beginning of the last century, it has been known that ascidians accumulate high levels of a transition metal, vanadium, in their blood cells, although the mechanism for this curious biological function remains unknown. Recently, we identified three vanadium-binding proteins (vanabins), previously denoted as vanadium-associated proteins (VAPs) [Zool. Sci. 14 (1997) 37], from the cytopl...

A creative hydrothermal synthesis method followed by calcination for vanadium nitride (VN) is reported. The oxygen reduction reaction (ORR) study of the catalyst shows that VN possesses a comparable catalytic performance to commercial Pt/C catalyst. The ORR catalytic activity study of vanadium nitride, vanadium carbonitride, and vanadium carbide reveals that tuning anions offers a promising rou...

This article describes experimental investigations to determine the corrosion compatibility of candidate matrix materials a capillary-porous structure (CPS) with liquid tin-lithium alloy at high temperatures. The studies were conducted Sn 75 -Li 25 and samples 12Ch18Ni10Ti grade austenite stainless steel, VEL-3 vanadium, TT tantalum. Experiments on interaction CPS temperatures carried out an Ti...

Sixteen ram lambs were fed 0, 50 or 200 ppm supplemental vanadium daily as NH4VO3 for 90 d and coccygeal vertebrae were sampled at 0, 15, 30, 6 0 a n d 90 d after the imposition of dietary treatments. Vertebral vanadium content was elevated (P<.05) after exposure to 200 ppm added vanadium in the diet for 15 d, but nonsignificant increases occurred thereafter. Increasing dietary vanadium increas...