Journal ArticleDOI
Liquid phase separation in transition element high entropy alloys
TLDR
In this article, high-resolution scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) capabilities were used for microstructural characterization of transition metal (Co-Cu-Fe) high entropy alloys.About:
This article is published in Intermetallics.The article was published on 2017-07-01. It has received 33 citations till now. The article focuses on the topics: High entropy alloys & Spinodal decomposition.read more
Citations
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Predictive multiphase evolution in Al-containing high-entropy alloys
Louis J. Santodonato,Peter K. Liaw,Raymond R. Unocic,Hongbin Bei,James R. Morris,James R. Morris +5 more
TL;DR: An approach where parameters from first principle simulations are incorporated into Monte Carlo simulations to reproduce phase evolution of aluminium-containing high entropy alloys is developed.
Journal ArticleDOI
Microstructures and hydrogen storage properties of LaNiFeVMn alloys
TL;DR: In this paper, the effect of the alloy chemical composition on the hydrogen storage properties is elucidated in terms of the structure, phase composition and alloy formation entropies, and the results of phase analysis indicate that laser manufactured alloys possess a primary two-phase structure that changes from σ+−La(Ni,Mn)5 to FCC+La( Ni,Mm)5 alloys.
Journal ArticleDOI
A novel intermediate temperature self-lubricating CoCrCu1-xFeNix high entropy alloy fabricated by direct laser cladding
Ahmad Ostovari Moghaddam,M. N. Samodurova,Kirill Pashkeev,M. Doubenskaia,Alexey Sova,Evgeny A. Trofimov +5 more
TL;DR: In this article, a self-lubricating CoCrCu1-xFeNix (x = 0, 0.1, 0.3 and 0.5) HEA coating was in-situ prepared by laser cladding and demonstrated that an adequate amount of nearly pure copper segregated into the interdendritic regions could effectively smear the surface of the alloy and provide a Cu-rich protective oxide layer during dry sliding condition at an intermediate temperature of 400°C.
Journal ArticleDOI
Heat treatment influence on the microstructure and mechanical properties of AlCrFeNiTi0.5 high entropy alloys
TL;DR: In this paper, the influence of heat treatments and cooling rates on the microstructure and mechanical properties of AlCrFeNiTi0.5 alloys were investigated using a variety of techniques such as DTA, XRD, SEM, Vickers microhardness, and compression tests.
Journal ArticleDOI
Liquid Phase Separation in High-Entropy Alloys-A Review.
N. Derimow,Reza Abbaschian +1 more
TL;DR: The objective of this review is to bring forth and summarize the findings of the experiments which detail liquid phase separation (LPS) in HEAs, MPEAs, and CCAs and to draw parallels between HEAs and the conventional alloy systems which undergo liquid-liquid separation.
References
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Journal ArticleDOI
Thermo-Calc & DICTRA, computational tools for materials science
TL;DR: It is shown how advanced thermodynamic calculations have become more accessible since: - A more user-friendly windows version of Thermo-Calc, TCW, has been developed, and there is an increasing amount of thermodynamic databases for different materials available.
Journal ArticleDOI
Giant magnetoresistance in heterogeneous Cu-Co alloys.
Ami E. Berkowitz,J. R. Mitchell,Matthew J. Carey,A. P. Young,Shufeng Zhang,Frederick E. Spada,F. T. Parker,Andreas Hütten,G. Thomas +8 more
TL;DR: Giant magnetoresistance in heterogeneous thin film Cu-Co alloys consisting of ultrafine Co-rich precipitate particles in a Cu-rich matrix is observed, modeled by including spin-dependent scattering at the interfaces between the particles and the matrix, as well as the spin- dependent scattering in the Co- rich particles.
Book
Electron Microprobe Analysis
TL;DR: In this article, the electron microprobe was used for energy-dispersive analysis of X-ray spectrometers, and it was shown that the resulting analysis can be used to identify the origin of characteristic X-rays.
Journal ArticleDOI
Design of a twinning-induced plasticity high entropy alloy
Yun Deng,Yun Deng,Cemal Cem Tasan,Konda Gokuldoss Pradeep,Konda Gokuldoss Pradeep,Hauke Springer,Aleksander Kostka,Dierk Raabe +7 more
TL;DR: In this article, a liquid metallurgy synthesized, non-equiatomic Fe 40 Mn 40 Co 10 Cr 10 high entropy alloy is designed to undergo mechanically-induced twinning upon deformation at room temperature.
Journal ArticleDOI
Liquid immiscibility in copper-iron and copper-cobalt systems in the supercooled state
TL;DR: In this article, the immiscibility gap is nearly symmetrical about the axis corresponding to the equi-atomic composition, and the temperatures of critical mixing for the Cu-Fe and Cu-Co systems are respectively 20° and 90°C below the liquidus curves at the equinear composition.
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