Results 91 to 100 of about 395,568 (271)

In Situ Observation by X-Ray Radioscopy of Liquid Decomposition During Directional Solidification of Al-Cu-Sn Alloys

open access: yesMetals
Immiscible Al–Sn–Cu alloys may offer attractive properties, attaining superior tribological and mechanical properties when Sn-rich soft particles are homogeneously distributed in the reinforced Al–Cu matrix.
Sarah De Albuquerque   +5 more
doaj   +1 more source

Synthesis of Au –Ag– Cu trimetallic alloy nanoparticles prepared by electrical exploding wire technique in distilled water

open access: yesIraqi Journal of Physics, 2019
Formation of Au–Ag–Cu ternary alloy nanoparticles (NPs) is of particular interest because this trimetallic system have miscible (Au–Ag and Au–Cu) and immiscible (Ag– Cu) system. So there is a possibility of phase segregation in this ternary system.
Hammad R. Humud
doaj   +1 more source

Lubricated sliding wear behaviour of aluminium alloy composites

open access: yes, 2005
Interest in aluminium alloy (Al-alloy) composites as wear resistant materials continues to grow. However, the use of the popular Al-alloy-SiC composite can be limited by the abrasive nature of the SiC, leading to increased counterface wear rates.
Rainforth, W.M., Jones, H., Walker, J.C.
core   +1 more source

Design and Evaluation of a High-Throughput Ball Mill for Parallel Alloy Processing

open access: yesPowders
With growing performance demands, sectors such as aerospace and energy are driven to rapidly develop and optimize advanced materials. High-energy ball milling is a route to produce novel high-performance materials.
Colton A. Gilleland   +3 more
doaj   +1 more source

Grain Refinement of Hypereutectic Immiscible Cu-50Cr Alloy during Rapid Melting and Solidification Induced by High Power Density Laser Beams

open access: yesMetals, 2019
The microstructure of hypereutectic immiscible Cu-50Cr alloy (wt%) was effectively refined and homogenized by a high power density Nd:YAG continuous laser beam (power density 104−105 MW/m2). The average grain size of Cr was effectively refined from
Litian Zhang   +4 more
doaj   +1 more source

Evolution of hierarchical microstructures in Cu–Fe immiscible alloy driven by liquid-state mixing

open access: yesMaterials Today Advances
Copper–iron (Cu–Fe) immiscible alloys are known for their potential to form hierarchical microstructures with superior mechanical properties under rapid solidification conditions.
S. Sarmast-Ghahfarokhi   +6 more
doaj   +1 more source

Using Mechanical Alloying to Create Bimetallic Catalysts for Vapor-Phase Carbon Nanofiber Synthesis

open access: yesFibers, 2015
Carbon nanofibers were generated over bimetallic catalysts in an atmospheric pressure chemical vapor deposition (APCVD) reactor. Catalyst compositions of Fe 30 at%, Cu and Ni 30 at% and Cu were mechanically alloyed using high-energy ball milling over ...
Laura Guevara   +3 more
doaj   +1 more source

A predictive fatigue life model for anodized 7050 aluminium alloy [PDF]

open access: yes, 2013
The objective of this study is to predict fatigue life of anodized 7050 aluminum alloy specimens. In the case of anodized 7050-T7451 alloy, fractographic observations of fatigue tested specimens showed that pickling pits were the predominant sites for ...
Chaussumier, Michel   +4 more
core   +1 more source

Thermo-mechanical strengthening mechanisms in a stable nanocrystalline binary alloy – A combined experimental and modeling study

open access: yesMaterials & Design, 2019
An immiscible nanocrystalline (NC) copper-tantalum (Cu-Ta) alloy is shown to exhibit a stable microstructure under thermo-mechanical loading conditions with exceptional mechanical strength (i.e., 1200 MPa strength at 298 K) indicating anomalous ...
C. Kale   +7 more
doaj   +1 more source

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