Results 251 to 260 of about 32,641 (319)

Refractory high-entropy alloys

Intermetallics, 2010
Abstract Two refractory high-entropy alloys with near-equiatomic concentrations, W–Nb–Mo–Ta and W–Nb–Mo–Ta–V, were produced by vacuum arc melting. Despite containing many constituents both alloys have a single-phase body-centered cubic (BCC) structure.
O.N. Senkov, G.B. Wilks, D.B. Miracle, C.P. Chuang, P.K. Liaw   +4 more
openaire   +1 more source

Superior High‐Temperature Strength in a Supersaturated Refractory High‐Entropy Alloy

Advances in Materials, 2021
Refractory high‐entropy alloys (RHEAs) show promising applications at high temperatures. However, achieving high strengths at elevated temperatures above 1173K is still challenging due to heat softening.
R. Feng, Bojun Feng, M. Gao, Chuan Zhang, J. Neuefeind, J. Poplawsky, Y. Ren, K. An, M. Widom, P. Liaw   +9 more
semanticscholar   +1 more source

Senary refractory high entropy alloy MoNbTaTiVW

Materials Science and Technology, 2015
The design approach and validation of a single phase senary refractory high entropy alloy (HEA) MoNbTaTiVW was presented in the present study. The design approach was to combine phase diagram inspection of available binary and ternary systems and Calculation of Phase Diagrams prediction.
B. Zhang, M. C. Gao, Y. Zhang, S. Yang, S. M. Guo   +4 more
openaire   +1 more source

Dynamic mechanical response of TaMoNbZrTi refractory high entropy alloy via multi-wire arc additive manufacturing

Philosophical Magazine A
Here, the TaMoNbZrTi refractory high entropy alloy (RHEA) is fabricated by multi-wire arc additive manufacturing (MWAAM), and the dynamic mechanical behaviour is analysed. A pre-alloyed droplet transfer mode is proposed to facilitate decent metallurgical
Yujing Zhou, Siyi Peng, Yueling Guo, Xinglong Di, Bin Liu, Changmeng Liu   +5 more
semanticscholar   +1 more source

New structure in refractory high-entropy alloys

Materials Letters, 2014
Abstract The microstructure of a new refractory high-entropy alloy of composition close to Ti 35 Zr 27.5 Hf 27.5 Nb 5 Ta 5 prepared by arc melting and induction techniques was investigated using X-Ray diffraction (XRD) and transmission electron microscopy (TEM).
L. Lilensten, J.P. Couzinié, L. Perrière, J. Bourgon, N. Emery, I. Guillot   +5 more
openaire   +1 more source

Strengthening mechanisms in CrMoNbTiW refractory high entropy alloy

Materials Science and Engineering: A, 2021
Abstract We have investigated the strengthening mechanisms of as-cast CrMoNbTiW BCC refractory high entropy alloy (RHEA). The cast RHEA was deformed at a constant strain rate of 10−3 s−1 and a temperature range of 1100–1300 °C. The various factors contributing to the overall strength of the cast alloy are explored with comprehensive experimental ...
Lavanya Raman, Ameey Anupam, G. Karthick, Christopher C. Berndt, Andrew Siao Ming Ang, S V S Narayana Murty, Daniel Fabijanic, B S Murty, Ravi Sankar Kottada   +8 more
openaire   +2 more sources

Thermodynamic design of high-entropy refractory alloys

Journal of Alloys and Compounds, 2017
Abstract The method for design of stabile multicomponent solid solutions with use thermodynamic, mechanical and topological parameters of the constituent elements was developed. The alloys based on W, Ta, Mo, Nb, V, Ti, Zr, Hf and Cr elements were investigated using this approach.
A.B. Melnick, V.K. Soolshenko
openaire   +1 more source

WEDM machining of MoNbTaTiZr refractory high entropy alloy

CIRP Journal of Manufacturing Science and Technology, 2022
Refractory high entropy alloys (RHEAs) have shown great promise for a multitude of advanced engineering applications due to their high mechanical stability from cryogenic temperatures to 1600 °C. However, the low ductility they exhibit at room temperature limits their machinability when traditional machining techniques are used.
Günen, Ali, Ceritbinmez, Ferhat, Patel, Kunjal, Akhtar, Mst Alpona, Mukherjee, Sundeep, Kanca, Erdoğan, Karakaş, Mustafa Serdar   +6 more
openaire   +2 more sources

Thermodynamic properties of refractory high entropy alloys

Journal of Alloys and Compounds, 2016
Abstract As the potential radiation damage-tolerant materials, Hf Nb Ta Ti Zr high entropy alloys (HEAs) attract considerable attention, whereas the thermodynamic parameters are very limited at different temperatures and under high pressure. In this work we combine the ab initio calculations of supercell with the quasi-harmonic Debye-Gruneisen ...
Hongquan Song, Fuyang Tian, Dongping Wang   +2 more
openaire   +1 more source