Results 31 to 40 of about 119,278 (296)

Novel Co-rich high entropy alloys with superior tensile properties

Materials Research Letters, 2019
We developed a series of Co-rich CoxCr25(FeNi)75−x (x = 35, 45, 55, 65) high entropy alloys with improved strength and/or ductility, derived from lowering the stacking fault energy (SFE) and reducing the fcc phase stability of the equiatomic CoCrFeNi ...
Daixiu Wei, Xiaoqing Li, Weicheng Heng, Yuichiro Koizumi, Feng He, Won-Mi Choi, Byeong-Joo Lee, Hyoung Seop Kim, Hidemi Kato, Akihiko Chiba   +9 more
doaj   +1 more source

Unusual two-step dealloying mechanism of nanoporous TiVNbMoTa high-entropy alloy during liquid metal dealloying

Journal of Materials Research and Technology, 2021
In this study, 3D interconnected nanoporous (3DNP) TiVNbMoTa HEAs were synthesized from the (TiVNbMoTa)25Ni75 as-cast precursor alloy using the liquid metal dealloying (LMD).
Soo-Hyun Joo, I.V. Okulov, H. Kato
doaj   +1 more source

Machine learning guided BCC or FCC phase prediction in high entropy alloys

Journal of Materials Research and Technology
High entropy alloys （HEAs） have excellent properties because they can form simple solid solution (SS) phases, including body-centered cubic (BCC) phase, face-centered cubic (FCC) phase, or FCC + BCC phase, so phase prediction is the first step in alloy ...
Zhongping He, Huan Zhang, Hong Cheng, Meiling Ge, Tianyu Si, Lun Che, Kaiyuan Zheng, Lingrong Zeng, Qingyuan Wang   +8 more
doaj   +1 more source

Ternary coherent phase diagram on the FCC lattice [PDF]

Journal de Physique I, 1994
In this paper, we describe a general and original method to study the ground state problem, in multicomponent systems. The method is illustrated by considering the nearest neighbour Ising model in ternary FCC lattices, and leads to the occurrence as a ground state of a new phase called L'.
Cénédèse, P., Calvayrac, Y., Marty, A.   +2 more
openaire   +2 more sources

Supersolid of Hardcore Bosons on the Face Centered Cubic Lattice

, 2007
We investigate a supersolid state in hardcore boson models on the face-centered-cubic (FCC) lattice. The supersolid state is characterized by a coexistence of crystalline order and superfluidity.
A. F. Andreev, Naoki Kawashima, Takahumi Suzuki   +2 more
core   +1 more source

Nanoindentation into a dual-phase bicontinuous lamellar high-entropy alloy

Journal of Materials Research and Technology
The plastic response of a dual-phase high-entropy alloy to nanoindentation is studied using molecular dynamics simulation. The sample has a bicontinuous lamellar structure consisting of an equiatomic FeNiCrCo fcc phase and an Al50(FeNiCrCo)50 bcc/B2 ...
Iyad Alabd Alhafez, Orlando R. Deluigi, Diego Tramontina, Felipe Valencia, Nina Merkert, Diana Farkas, Alfredo Caro, Herbert M. Urbassek, Eduardo M. Bringa   +8 more
doaj   +1 more source

Synthesis and Self-Assembly of fcc Phase FePt Nanorods

Journal of the American Chemical Society, 2007
We report a synthesis of FePt nanorods by confining decomposition of Fe(CO)5 and reduction of Pt(caca)2 in surfactant reverse cylindrical micelles. The controlled nucleation and growth kinetics in confined environment allows easy control over Fe/Pt composition, nanorod uniformity, and nanorod aspect ratio.
Min, Chen, Timothy, Pica, Ying-Bing, Jiang, Peng, Li, Kazuaki, Yano, J Ping, Liu, Abhaya K, Datye, Hongyou, Fan   +7 more
openaire   +3 more sources

Lattice vibrations and structural instability in Cesium near the cubic to tetragonal transition

, 2000
Under pressure cesium undergoes a transition from a high-pressure fcc phase (Cs-II) to a collapsed fcc phase (Cs-III) near 4.2GPa. At 4.4GPa there follows a transition to the tetragonal Cs-IV phase.
Andersen O K, Born M, Christensen N E, Christensen N E, Hall H T, O Jepsen, Takemura K, Vosko S H, Y Kong   +8 more
core   +2 more sources

Hot wear of single phase fcc materials [PDF]

, 2021
The severe sliding abrasion of single-phase metallic materials is a complex issue with a gaining importance in industrial applications. Different materials with different lattice structures react distinctly to stresses, as the material reaction to wear of counter and base body is mainly determined by the deformation behavior of the base body.
Berger, Aaron (Dr.-Ing.), Walter, Maximilian (Dr.-Ing.), Benito, Santiago Manuel (Dr.-Ing.), Weber, Sebastian (Prof. Dr.-Ing.)   +3 more
openaire  

Fcc-bcc transition for Yukawa interactions determined by applied strain deformation

, 2004
Calculations of the work required to transform between bcc and fcc phases yield a high-precision bcc-fcc transition line for monodisperse point Yukawa (screened-Couloumb) systems.
E. C. Whipple, E. Verwey, F. Milstein, F. Reif, G. Dupont, M. P. Allen, Mark O. Robbins, N. W. Ashcroft, R. G. Larson, Robert S. Hoy, Y. Monovoukas   +10 more
core   +1 more source