% Al-22 at. % Nb. These alloys in the initial state contain an orthorhombic O phase (Ti 2 AlNb) ordered in terms of all three elements. The differential thermal analysis was performed at different heating and cooling rates, namely, 40 and 80 K/min. The solidus and liquidus temperatures ...
The thermodynamic description of the entire ternary Al–Nb–Ti system is obtained by CALPHAD modelling of the Gibbs energy of all individual phases, taking into account experimental data on phase equilibria and thermodynamic properties published and complemented by own experiments. The description includes...
First, a combined approach of a least-squares analysis of experimental diffraction data and ab-initio relaxations is used to study the structure of the icosahedral Ti-Zr-Ni quasicrystal. Second, the ground state phase diagram of the ternary Ti-Zr-Ni system is investigated by total energy ...
A more direct method based on the phase diagram is proposed to observe and determine triplet synchronization. Our results show that the stable triplet synchrony is observed in several intervals of the parameter space. Moreover, the experimental results are verified according to the theoretical model ...
The change in the GSFE surface indicates that the substitution of Ti with Cr, Nb, or V results in an increase in the yield strength because the ICRSS of the superlattice intrinsic stacking fault (SISF) partial slip increases. Interestingly, we find that Cr substitution on an Al site could...
Solidification microstructure characteristics of Ti–44Al–4Nb–2Cr–0.1B alloy under various cooling rates during mushy zone Solidification microstructure?Beta-solidifying TiAl alloy has great potential in the field of aero-industry as a cast alloy. In the present work, the ... P Han,HC Kou,JR...
This Ti–5 mass% Ta–1.8 mass% Nb alloy is basically an α(hcp)-phase alloy, although the presence of β(bcc)-stabilizers such as niobium, tantalum, and some residual iron of about 7 mass% in total contrib- utes to the presence of about 4 vol% to 5 vol% of the β-phase in ...
adftstudyoftheacetylenecyclotrimerizationcatalyzedbyfeo 系统标签: feo催化acetylene化气乙炔catalyzed 化学研究与应用第26卷 第26卷第6期 2014年6月 化学研究与应用 ChemicalResearchandApplication Vol.26,No.6 Jun.,2014 文章编号:10041656(2014)06092805 FeO催化乙炔三聚环化气相反应机理的理论研究 陈曙,鞠廷勇,杨华...
Motivated by the structure evolution experiments of Janus NiAu nanoparticles (NPs), we present a detailed study on the thermodynamic evolution of Ni and Au NPs with different ratios of Au and Ni through the molecular dynamics (MD) simulations. It is found that, for fixed Ni particle size (5.8...
4 of the entire experimental setup. High-harmonic generation We used the AURORE femtosecond Ti:sapphire laser at CELIA laboratory in Bordeaux (France) which is feeding up to 5 five beamlines dedicated to ultra-fast phenomena. The laser is delivering 7 mJ pulses of 30 fs FWHM duration at a...