Results 11 to 20 of about 1,674,719 (294)

Universal Jamming Phase Diagram in the Hard-Sphere Limit [PDF]

open access: yes, 2010
We present a new formulation of the jamming phase diagram for a class of glass-forming fluids consisting of spheres interacting via finite-ranged repulsions at temperature $T$, packing fraction $\phi$ or pressure $p$, and applied shear stress $\Sigma ...
Haxton, Thomas K.   +2 more
core   +4 more sources

Influence of σ Phase on the Allotropic Transformation of the Matrix in Co-Re-Cr-Based Alloys with Ni Addition

open access: yesMetals, 2018
Co-Re-Cr alloys are being developed for high-temperature application in gas turbines. In these alloys, the Cr2Re3-based σ phase is stable when the Cr content is higher than 20 atomic %. The addition of Ni is being studied to partially substitute Cr,
Kai Dörries   +5 more
doaj   +1 more source

Impact of different Cr contents on microstructural evolution and mechanical behaviour of CoCrxCuFeMnNiV high-entropy alloys

open access: yesJournal of Materials Research and Technology, 2022
The CoCrxCuFeMnNiV (x = 0, 0.25, 0.5, 0.75, 1) high-entropy alloy was prepared via vacuum arc smelting, and the effect of different Cr contents on the microstructure evolution and mechanical properties of it was evaluated.
Wen He   +4 more
doaj   +1 more source

Microstructural Transformation in a Root Pass of Superduplex Stainless Steel Multipass Welding [PDF]

open access: yesMaterials Research, 2017
The microstructure of the root pass in a superduplex stainless steel multipass welding was investigated.Results showed that the welding metal has an austenite matrix with particles of sigma phase formed in the ferrite/austenite interface and ...
Doris Ivette Villalobos-Vera   +1 more
doaj   +1 more source

Competition between hidden order and antiferromagnetism in URu_2Si_2 under uniaxial stress studied by neutron scattering [PDF]

open access: yes, 2005
We have performed elastic neutron scattering experiments under uniaxial stress sigma applied along the tetragonal [100], [110] and [001] directions for the heavy electron compound URu2Si2.
G. Motoyama   +12 more
core   +3 more sources

Evaluation of the low corrosion resistant phase formed during the sigma phase precipitation in duplex stainless steels [PDF]

open access: yesMaterials Research, 1999
The duplex stainless steels, having a volumetric fraction of 50% ferrite and 50% austenite, conciliate high corrosion resistance with good mechanical properties.
Darlene Yuko Kobayashi, Stephan Wolynec
doaj   +1 more source

Microstructure Evolution in Super Duplex Stainless Steels Containing σ-Phase Investigated at Low-Temperature Using In Situ SEM/EBSD Tensile Testing

open access: yesMetals, 2018
An in situ scanning electron microscope (SEM) study was conducted on a super duplex stainless steel (SDSS) containing 0%, 5% and 10% σ-phase. The material was heat treated at 850 °C for 12 min and 15 min, respectively, to achieve the different ...
Christian Oen Paulsen   +4 more
doaj   +1 more source

Kinetics of sigma phase formation in a Duplex Stainless Steel

open access: yesMaterials Research, 2009
This work determines the kinetics of sigma phase formation in UNS S31803 Duplex Stainless Steel (DSS), describing the phase transformations that occur in isothermal aging between 700 and 900 ºC for time periods up to 1032 hours, allowing the ...
Rodrigo Magnabosco
doaj   +1 more source

Structure of the S304H Steel after 20,000 Hours of Ageing [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The S304H steel is used in the construction of pressure components of boilers with supercritical operating parameters. The paper presents the results of the research on the microstructure after ageing for 20,000 hours at 650 and 700°C. The microstructure
R. Wersta   +4 more
doaj   +1 more source

Chiral Phase Transition within Effective Models with Constituent Quarks [PDF]

open access: yes, 2000
We investigate the chiral phase transition at nonzero temperature $T$ and baryon-chemical potential $\mu_B$ within the framework of the linear sigma model and the Nambu-Jona-Lasinio model.
D. H. Rischke   +25 more
core   +2 more sources

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