This work focuses on the examination of two High Entropy Alloys (HEAs), AlTiVCr and AlTiVCr–Si 7.2, which have been observed to fail in a brittle manner directly after casting. Understanding failure mechanics is prerequisite for an alternative enhanced alloy design order prevent early without loading application. The specimens were produced using Vacuum Arc Melting methodology protective argon ...

Cr–Si–O–N coatings with different oxygen contents were deposited by multi-arc ion plating, where various O2/(N2 + O2) reactive gas rates were adopted. The XRD and XPS results showed that the CrN crystals disappeared with the increasing of the oxygen flux ratio to 10 at.%. The microhardness of all the Cr–Si–O–N coatings was approximately 2000 Hv0.05, which were dramatically plummeted compared to...

The paper demonstrates the potential of wet ball milling metals for synthesis various carbides and carbohydrides. work reports on multicomponent formed in Ti-(Cu/Fe/Si)-C, W-Fe-C, Nb-(Cu/Fe/Si/Al)-C systems, as well metastable or high-temperature intermetallics Ti-Si, Nb-Si, Nb-Al, Nb-Cu-Fe which are stabilized with interstitial carbon. formation phase composition powders fabricated under mecha...

Abstract The effects of Ti and Si addition on the phase equilibrium mechanical properties equiatomic CoCrFeMnNi high entropy alloy (Cantor alloy) were investigated. at 1000 °C was determined from result X-ray diffraction electron probe micro-analysis. stabilizes $$\sigma$$ σ phase, A12 C14-Laves while A13 pha...

UNLABELLED Cell culture system has been used to evaluate alloy cytotoxicity under different environments, testing the extracts, but the effect of temperature variation on the cytotoxicity of dental alloys has not been analyzed. OBJECTIVE The aim of the present study was to investigate if temperature variation could affect dental alloy cytotoxicity, testing alloy extracts in an epithelial cell...

AS TR 6 33 A st ro ph ys ic al T ec hn iq ue s 70 30 6 3. 00 00 1 AC TI VE 0 20 0 0 0 20 0% 0% TB A to T BA lo ca tio n IF A C 22 1 (M ax R m . c ap ac ity 3 0) (I ns tr: J H en ry ) L ec tu re /D ic us si on AS TR 6 99 D ire ct ed R es ea rc h 70 30 7 1. 00 00 1 AC TI VE 0 25 0 0 0 25 0% 0% TB A to T BA lo ca tio n TB A TB A (M ax R m . c ap ac ity 9 99 ) ( In st r: Jo sh ua B ar ne s) D ire c...

Stellar parameters of 25 planet-hosting stars and abundances Li, C, O, Na, Mg, Al, S, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni, Zn, Y, Zr, Ba, Ce, Pr, Nd, Sm Eu, were studied based on homogeneous high resolution spectra uniform techniques. The iron abundance [Fe/H] key elements (Li, Si) indicative the planet formation, as well dependencies [El/Fe] $T_{cond}$, analyzed. determined in our sample with de...

and Applied Analysis 3 where {αn} be a real sequence in [0, 1]. If ∑∞ n 1 αn ∞, then {xn}n 0 converges strongly to the unique fixed point of T . In 2006, Rafiq 7 considered a class of mappings satisfying the following condition: ∥ ∥Tx − Ty∥ ≤ hmax { ∥ ∥x − y∥, ‖x − Tx‖ ∥ ∥y − Ty∥ 2 , ∥ ∥x − Ty∥,∥y − Tx∥ } , CR 0 < h < 1. This class of mappings is a subclass of mappings satisfying the following ...

In the present study, the influence of substitutional elements (Ti and Al) on the structural stability, mechanical properties, electronic properties and Debye temperature of Ta5Si3 with a D8m structure were investigated by first principle calculations. The Ta5Si3 alloyed with Ti and Al shows negative values of formation enthalpies, indicating that these compounds are energetically stable. Based...