Results 11 to 20 of about 73,480 (247)

A Modern-day Alchemy: Double Glow Plasma Surface Metallurgy Technology [PDF]

open access: yes, 2021
In the long history of science and technology development, one goal is to diffuse solid alloy elements into the surface of steel materials to form surface alloys with excellent physical and chemical properties. On the basis of plasma nitriding technology, double glow plasma surface metallurgy technology has answered this challenge.
arxiv   +1 more source

Conditions for Production of Composite Material Based on Aluminum and Carbon Nanofibers and Its Physic-Mechanical Properties

open access: yesNanomaterials, 2019
Aluminum-based metallic matrix composites reinforced by carbon nanofibers (CNFs) are important precursors for development of new light and ultralight materials with enhanced properties and high specific characteristics.
Oleg V. Tolochko   +6 more
doaj   +1 more source

Application of porous TiAl intermetallic compound in purification of industrial TiCl4 liquid in Ti metallurgy

open access: yesMaterials Research Express, 2020
Industrial TiCl _4 liquid, which is a key intermediate in Ti metallurgy, is hard to be purified by traditional porous metals or ceramics due to its characteristics of easy hydrolysis, toxicity and corrosivity.
Yao Jiang   +3 more
doaj   +1 more source

Polycrystalline MnBi as a transverse thermoelectric material [PDF]

open access: yesarXiv, 2022
To assess the potential of polycrystalline MnBi as a transverse thermoelectric material, we have experimentally investigated its anomalous Nernst effect (ANE) by means of the heat flux method. We prepared MnBi samples by powder metallurgy; this technique allows the preparation of samples in arbitrary shapes with the possibility to tailor their magnetic
arxiv  

Modeling of 3D Printable Electrical Machineries Ferromagnetic Parts [PDF]

open access: yesarXiv, 2022
The electrical machinery core is formed with a ferromagnetic material that offers high magnetic properties. As ferromagnetic materials have high relative magnetic permeability, they are important in the formation of electromagnetic device cores.
arxiv  

Mechanism of Floater Formation in the Mold during Continuous Casting of Ti-Stabilized Austenitic Stainless Steels

open access: yesMetals, 2019
During the continuous casting (CC) of Ti-bearing steel, a steel lump can solidify in the mold (i.e., floater steel) more easily than in the Ti-free steels. This causes severe surface defects or even a breakout.
Zhuo Chen   +4 more
doaj   +1 more source

Design using randomness: a new dimension for metallurgy [PDF]

open access: yesScripta Materialia, vol. 187, 2020, pp. 210-215, 2020
High entropy alloys add a new dimension, atomic-scale randomness and the associated scale-dependent composition fluctuations, to the traditional metallurgical axes of time-temperature-composition-microstructure. Alloy performance is controlled by the energies and motion of defects (dislocations, grain boundaries, vacancies, cracks, ...).
arxiv   +1 more source

A Study on Powder Metallurgy Process for x Electric Vehicle Stator Core

open access: yesMetals
The powder metallurgy process of manufacturing the motor core and inductor core using SMC greatly changes formability depending on the process variables.
Jaemin Kim, Seonbong Lee
doaj   +1 more source

The Taming of Plutonium: Pu Metallurgy and the Manhattan Project [PDF]

open access: yesarXiv, 2021
We describe the wartime challenges associated with the rapid developments in plutonium chemistry and metallurgy that were necessary to produce the core of the Trinity Device. Beginning with microgram quantities of plutonium metal late in 1943, initial measurements showed a wide and confusing variance in density and other properties.
arxiv  

Inverse projection of axisymmetric orientation distributions [PDF]

open access: yes, 2023
We show that the projection of an axisymmetric three-dimensional orientation distribution to two dimensions can be cast into an Abel transform. Based on this correspondence, we derive an exact integral inverse, which allows for the quantification of three-dimensional uniaxial alignment of rodlike units from two-dimensional sliced images, thus providing
arxiv   +1 more source

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