Results 61 to 70 of about 127,872 (334)

Mg/ZrO2 Metal Matrix Nanocomposites Fabricated by Friction Stir Processing: Microstructure, Mechanical Properties, and Corrosion Behavior

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Magnesium (Mg) and its alloys have attached more and more attention because of their potential as a new type of biodegradable metal materials. In this work, AZ31/ZrO2 nanocomposites with good uniformity were prepared successfully by friction stir ...
Ke Qiao   +10 more
doaj   +1 more source

The Effect of Grain Refiner on Aluminium Filtration

open access: yes, 2021
Grain refinement of aluminium and its alloys is a common industrial practice. Fine equiaxed, grain structure leads to improved castability, strength, machinability, formability, and good surface finish. Filtration is one of the widely used technologies to remove inclusions from the melt.
Bao, Sarina   +6 more
openaire   +3 more sources

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld   +9 more
wiley   +1 more source

Melt conditioned direct chill casting (MC-DC) of wrought Al-alloys [PDF]

open access: yes, 2008
Melt Conditioned Direct Chill (MC-DC) casting is a new development for producing high-quality billets and slabs. In the MC-DC process, liquid metal is continuously fed into a MCAST (melt conditioning by advanced shear technology) machine, where the ...
Fan, Z, Hagheyghi, R, Liu, Y
core   +1 more source

Grain refinement and the microstructure evolution of Mg–9Al–5Ca alloy solidified under permanent magnetic stirring

open access: yesMaterials Research Express, 2020
To achieve the grain refinement of the as-cast Mg–9Al–5Ca alloy and understand the microstructure evolution during the grain refinement process, the permanent magnetic stirring(PMS) was applied to the solidification process of the alloy and the water ...
Huanming Ji
doaj   +1 more source

Analysis of Temperature and Stress Distribution on the Bond Properties of Hybrid Tailored Formed Components

open access: yesAdvanced Engineering Materials, EarlyView.
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek   +7 more
wiley   +1 more source

Shear enhanced heterogeneous nucleation in some Mg- and Al- alloys [PDF]

open access: yes, 2009
Intensive shearing was applied to alloy melts at temperatures above their liquidus by using a twinscrew mechanism. The sheared melt was then cast into a TP1 mould for microstructural examination.
Fan, Z   +7 more
core   +1 more source

Synergistic effects of Y and Nd on grain refinement of Mg-Y-Nd-Al alloy

open access: yesMaterials Research Express, 2022
In this study, the synergistic effects of Y and Nd on the grain refinement of the as-cast Mg-Y-Nd-Al alloy was investigated by varying Y and Nd contents while fixing their total content (Y + Nd) at 7%.
Lili Zhao   +6 more
doaj   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Grain refinement of superalloys K3 and K4169 by the addition of refiners [PDF]

open access: yesScience and Technology of Advanced Materials, 2001
Grain refinement of superalloys K3 and K4169 is achieved by adding refiners A, B, or mixed refiner (A+B) into the melt of alloy K3, and refiner C into the melt of alloy K4169 under different casting parameters. Results indicate that the mixed refiner (A+B) produces the best refining effect for alloy K3.
Yiping Guo   +4 more
openaire   +2 more sources

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