Results 41 to 50 of about 119,278 (296)

Large difference in the elastic properties of fcc and hcp hard-sphere crystals [PDF]

, 2003
We report a numerical calculation of the elastic constants of the fcc and hcp crystal phases of monodisperse hard-sphere colloids. Surprisingly, some of these elastic constants are very different (up to 20%), even though the free energy, pressure and ...
Frenkel, Daan, Pronk, Sander
core   +4 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

High-pressure phase transition in 3-D printed nanolamellar high-entropy alloy by imaging and simulation insights

Scientific Reports
We report on the high-resolution imaging and molecular dynamics simulations of a 3D-printed eutectic high-entropy alloy (EHEA) Ni40Co20Fe10Cr10Al18W2 consisting of nanolamellar BCC and FCC phases.
Andrew D. Pope, Wen Chen, Hangman Chen, Penghui Cao, Armenuhi Yeghishyan, Maksym Zhukovskyi, Khachatur Manukyan, Yogesh K. Vohra   +7 more
doaj   +1 more source

Evaluation of microstructure and mechanical property variations in AlxCoCrFeNi high entropy alloys produced by a high-throughput laser deposition method

, 2017
Twenty-one distinct AlxCoCrFeNi alloys were rapidly prepared by laser alloying an equiatomic CoCrFeNi substrate with Al powder to create an alloy library ranging x=0.15-1.32.
Borisevich, Albina, Flores, Katharine M., Gazquez, Jaume, Li, Mu, Mishra, Rohan   +4 more
core   +1 more source

Efficient Process Development for Laser Powder Bed Fusion of a Soft‐Magnetic Metallic Glass Composite

Advanced Engineering Materials, EarlyView.
Iron‐based metallic glass alloys exhibit excellent soft‐magnetic properties, and unprecedented geometrical freedom in the design of soft‐magnetic metallic glass components is made possible by additive manufacturing. An efficient workflow for developing parameters for laser‐based powder bed fusion of a Fe‐based metallic glass alloy is presented along ...
Julia Löfstrand, Priyanka Saha, Vidhiaza Leviandhika, Urban Wiklund, Alexander Elsen, Carolin Zintel, Lena Thorsson, Petra E. Jönsson   +7 more
wiley   +1 more source

Pressure induced irreversible phase transformation in an ordered high-entropy alloy

Scientific Reports
We report on a pressure induced irreversible phase transformation in an ordered eutectic high-entropy alloy (EHEA) AlCoCrFeNi2.1. The suction cast sample was synthesized by arc melting of raw elements resulting in an ordered B2 and FCC phase mixture for ...
Andrew D. Pope, Bijun Xie, Raimundas Sereika, Wuxian Yang, Wen Chen, Hangman Chen, Penghui Cao, Yogesh K. Vohra   +7 more
doaj   +1 more source

Contrasting mechanical behavior in precipitation hardenable AlXCoCrFeNi high entropy alloy microstructures: Single phase FCC vs. dual phase FCC-BCC

Materials Science and Engineering: A, 2019
Abstract AlxCoCrFeNi is a prominent high entropy alloy system with varying crystal structure from FCC to BCC depending on aluminum content. The mechanical behavior of Al0.7CoCrFeNi with dual phase FCC+BCC microstructure has been compared with that of single phase FCC Al0.3CoCrFeNi.
Sindhura Gangireddy, Bharat Gwalani, Vishal Soni, Rajarshi Banerjee, Rajiv S. Mishra   +4 more
openaire   +2 more sources

Mechanism of the fcc-to-hcp phase transformation in solid Ar [PDF]

The Journal of Chemical Physics, 2017
We present an atomistic description of the fcc-to-hcp transformation mechanism in solid argon (Ar) obtained from transition path sampling molecular dynamics simulation. The phase transition pathways collected during the sampling for an 8000-particle system reveal three transition types according to the lattice deformation and relaxation details. In all
Bingxi Li, Guangrui Qian, Artem R. Oganov, Salah Eddine Boulfelfel, Roland Faller   +4 more
openaire   +5 more sources

Crystalline and Electronic Structures of Molecular Solid C$_{50}$Cl$% _{10}$: First-Principles Calculation

, 2006
A molecular solid C$_{50}$Cl$_{10}$ with possible crystalline structures, including the hexagonal-close-packed (hcp) phase, the face-centered cubic (fcc) phase, and a hexagonal monolayer, is predicted in terms of first-principles calculation within the ...
B. Nuber, Gang Su, Qing-Bo Yan, Qing-Rong Zheng   +3 more
core   +1 more source

Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy. [PDF]

, 2020
Strategies involving metastable phases have been the basis of the design of numerous alloys, yet research on metastable high-entropy alloys is still in its infancy.
Chen, Sijing, Gludovatz, Bernd, Kim, Sang Jun, Oh, Hyun Seok, Park, Eun Soo, Ritchie, Robert O, Yu, Qian, Zhang, Ze   +7 more
core   +1 more source