According to a recent Hume-Rothery approach, the electron concentration, e/a, and average radius can be used identify domain of stability HEAs estimate phases that may occur in alloy. The present study investigates influence electronic structure on hardness for series HEA alloys. alloys investigated this work all contained Co, Fe Ni as base elements. To system one or more elements were added, i...

Interdiffusion in Ti-rich β solid solutions Ti–Al–Zr alloys was investigated at 1473 K. In the alloys, main interdiffusion coefficients (i.e., and , respectively) cross coefficients, have positive values, as well a slight concentration dependence. The values of are larger than those . Ti–Al–X (= V, Cr, Fe, Co, Zr) Repulsive interactions occur between Al X atoms because ratio to ones sign. On ot...

V ions exhibit cytotoxicity in a culture medium from concentrations of ^0.2 mg/L. Ti, Zr, Nb and Ta are biocompatible elements. A new Ti–15Zr–4Nb–4Ta alloy for medical implants is being developed. Its microstructure, mechanical properties, corrosion resistance and corrosion fatigue properties in a physiological saline solution, biocompatibility with cultured cells, new bone tissue response thro...

Inorganic elements in crude oil have been used the reconstruction of sedimentary environment and oil–oil (source) correlations; however, effect biodegradation on these has not investigated sufficiently. In this study, 14 oils from Miaoxi Sag Bohai Bay Basin, eastern China, were analyzed using molecular markers, trace elements, major to determine inorganic elements. The markers indicated that ar...

Dissimilar materials brazing of Ti2AlNb alloy to GH99 superalloy is great pragmatic importance in the aerospace field, especially lightweight space aircraft components manufacturing. In this work, TiZrCuNi amorphous filler was used as filler, and experiments were carried out at different temperatures times investigate changes interfacial structures properties joints. The typical microstructure ...