Results 61 to 70 of about 359,986 (266)

Microstructure refinement in Cu-Fe alloy using high pressure torsion

open access: yes, 2014
The effect of high pressure torsion (HPT) on the microstructure evolution of Cu-Fe 36% wt alloy has been studied. The initial Cu-Fe alloy has a dendritic structure, the length of dendrites is up to 100 gm. As a result of HPT (20 anvil rotations at 400 °C)
A. Lukyanov   +6 more
semanticscholar   +1 more source

Microstructure and Properties of W–Cu Composite/Fe-Based Powder Alloy Vacuum Brazed Joint with Different Filler Metals

open access: yesHigh Temperature Materials and Processes, 2017
W–Cu composite and Fe-based powder alloy were brazed with filler metals of Ag–Cu and Cu–Mn–Co alloys in a vacuum furnace. Both of filler metals can join W–Cu composite with Fe-based powder alloy directly in the experiment process.
Xia C. Z., Yang J., Xu X. P., Zou J. S.
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

open access: yesAdvanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

Alloy design strategies for Fe-rich particle manipulation via unveiling the solidification behavior of Cu-Fe-Si alloys

open access: yesMaterials & Design
Precise control of Fe-rich particles in Cu-Fe-Si alloy system is crucial for achieving balanced multi-properties such as electromagnetic and processability.
Jae Kwon Kim   +4 more
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

open access: yesAdvanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara   +4 more
wiley   +1 more source

Entropy-engineered spinel oxide coatings to enhance oxidation resistance and electrical performance of solid oxide fuel cell interconnectors

open access: yesApplied Surface Science Advances
This study investigates spinel oxide coatings derived from medium- to high-entropy alloy systems for solid oxide fuel cell interconnect applications.
Cheng-Ju Tsai   +5 more
doaj   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

Coarsening of Incoherent α-Fe Particles in a Cu–Fe Alloy

open access: yes, 1991
The coarsening of α-Fe particles in a Cu-Fe alloy was examined. Using the Lifshitz-Slyozov-Wagner (LSW) theory of Ostwald ripening, the interfacial energy between α-Fe and Cu estimated to be 3.3 j/m 2 .
T. Fujii, M. Kato, Tsutomu T. Mori
semanticscholar   +1 more source

Development of a Three‐Axis Planar Hall Magnetoresistance Sensor Using a Superparamagnetic Nanoparticle‐Based Flux Guide

open access: yesAdvanced Functional Materials, EarlyView.
A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon   +10 more
wiley   +1 more source

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