Results 1 to 10 of about 84,972 (300)

Phase-Field Simulation of γ′-Co3 (Al, W) Evolution Kinetics with Antiphase Boundaries in Co-Based Monocrystal Superalloys

open access: yesFrontiers in Materials, 2022
Antiphase boundaries (APBs) of L12 ordered γ′-Co3 (Al, W) precipitates have an essential effect on the high-temperature strength of Co-based monocrystal superalloys. In this work, the antiphase boundaries and their effects on the evolution kinetics of γ′
Yinfei Ju   +11 more
doaj   +1 more source

Rafting and redissolution of γʹ phase in Ni–Al alloy under external stress

open access: yesHeliyon, 2023
The volume fraction and rafting degree of the γʹ-Ni3Al phase under stress and high temperature are the key characteristics of mechanical properties in Ni-based superalloys, the rafting and redissolution of γʹ phase caused by the creep at high temperature
Jiajia Chen   +8 more
doaj   +1 more source

Large reversible magnetocaloric effect in high-entropy MnFeCoNiGeSi system with low-hysteresis magnetostructural transformation

open access: yesAPL Materials, 2022
High-entropy alloys have attracted tremendous research interest in recent years because of their special functional properties. However, the investigations on the high-entropy alloys with thermal- and magnetic-field-induced magnetostructural ...
Yong Guo   +11 more
doaj   +1 more source

Composition distribution and kinetics evolution of γ′ phase in Ni-(17−x) Al-x Mo (at.%) alloys

open access: yesJournal of Materials Research and Technology, 2021
Molybdenum plays a role in solid solution strengthening in Ni-based superalloys by sitting in the sublattice of L12 structure γ′-Ni3(Al,Mo) precipitates and dissolving in γ matrix.
Huiyu Wang   +4 more
doaj   +1 more source

Designing [100]-oriented Mn0.988Ni0.012CoSi/epoxy composites with large and reversible magnetic-field-induced strain by curing under a rotating magnetic field

open access: yesJournal of Materials Research and Technology, 2023
Nowadays, the development of magnetic energy-conversion devices stimulates the exploration of non-rare-earth materials and their polymer composites with large strain output under magnetic field. In this paper, we will provide a basic strategy to produce [
Zhishuo Zhang   +6 more
doaj   +1 more source

Phase-field simulation of evolution kinetics of second γ′ phase in Ni–Al alloy under tensile stress

open access: yesJournal of Materials Research and Technology, 2022
The precipitation and evolution of secondary γ′-Ni3Al phase under the tensile stress in Ni-17at. %Al alloy were studied by using phase-field simulation. The coarsening of secondary γ′ phase via the Ostwald ripening and coalescence coarsening is revealed ...
Yongsheng Li   +4 more
doaj   +1 more source

Behavior of platinum in the system of the matte-slag in the processing of copper-nickel materials [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
Copper-nickel sulfide ores are one of the main sources of platinum. One of the ways to extract precious metals from such ores involves melting of a concentrate in electric ore smelting furnaces, where the melt is divided into matte and slag.
Amdur A.   +4 more
doaj   +1 more source

Dynamic mechanical behavior, microstructure evolution, and restoration mechanism of a β‐Ti alloy during hot compression deformation

open access: yesInternational Journal of Mechanical System Dynamics, 2022
Metastable β titanium alloys are promising materials for lightweight and energy‐efficient applications due to their high strength and low density. Thermal–mechanical processing (TMP) is one of the most effective ways to improve the mechanical properties ...
Xi Pan   +8 more
doaj   +1 more source

Crystallographic Origin of Phase Transformation and Lamellar Orientation Control for TiAl-Based Alloys

open access: yesCrystals, 2022
TiAl intermetallics are typical metallic materials involving complex solid-state phase transformations, with crystal orientations that are difficult to control due to multi-transformation variants.
Gong Zheng   +10 more
doaj   +1 more source

A Study on the Brittle-to-Ductile Transition Temperature of Forged β-Solidifying TiAlMn and TNM Alloys

open access: yesCrystals, 2022
To further determine the brittle-to-ductile transition temperature, the microstructures and mechanical properties of typical forged β-solidifying Ti-42Al-5Mn (TiAlMn) and Ti-43Al-4Nb-1Mo-0.5B (TNM) alloys were studied.
Xiang Su   +7 more
doaj   +1 more source

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