Results 321 to 330 of about 451,301 (380)
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Materials Today: Proceedings, 2016
Efforts have been put towards industrial adaptability of the useful knowledge gained from lab scale to reliable pilot scale for production of refractory metals like Ta & Nb. Electron beam refining is used for production of these refractory metals in their pure form.
K V Mirji, null Sheela, N Saibaba
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Efforts have been put towards industrial adaptability of the useful knowledge gained from lab scale to reliable pilot scale for production of refractory metals like Ta & Nb. Electron beam refining is used for production of these refractory metals in their pure form.
K V Mirji, null Sheela, N Saibaba
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JOM, 2019
In this Part 2 of the review, we demonstrate the roles of phase rule, free energy and activity in the reduction and refining of different nonferrous metals categorized as common, reactive, rare and refractory. Based on the discussions in the following sections, the reader will appreciate the contributions of phase rule, activity and free energy in the ...
M. Shamsuddin, H. Y. Sohn
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In this Part 2 of the review, we demonstrate the roles of phase rule, free energy and activity in the reduction and refining of different nonferrous metals categorized as common, reactive, rare and refractory. Based on the discussions in the following sections, the reader will appreciate the contributions of phase rule, activity and free energy in the ...
M. Shamsuddin, H. Y. Sohn
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Ionic liquid metallurgy: novel electrolytes for metals extraction and refining technology
Mining, Metallurgy & Exploration, 2006Ionic liquids (ILs) are molten salts that are liquid at or below room temperature. ILs have some unique properties compared to aqueous solution and regular organic liquids. These properties include very low vapor pressures and not emitting organic vapor to the environment; low melting points and wide temperature ranges for the liquid phase (up to 400°C)
M. Zhang, V. Kamavaram, R. G. Reddy
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Selection of refining additions for powder metallurgy alloys of chromium
Soviet Powder Metallurgy and Metal Ceramics, 1990A. N. Volchkov +3 more
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Insight into ultra-refined grains of aluminum matrix composites via deformation-driven metallurgy
Composites Communications, 2021Abstract Ultra-refined grains were obtained in few-layer graphene nanoplatelets reinforced aluminum matrix composites via deformation-driven metallurgy under coupled thermo-mechanical effect. Fragmentation, thinning and re-dispersion of the reinforcements accelerated the nucleation of recrystallized grains and inhibited the migration of grain ...
Yuming Xie +5 more
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Secondary metallurgy at machine-building plants
Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information, 2023Metallurgical production in foundries of machine-building plants is characterized by a number of specific features due to a wide variety of products, particularly stringent requirements for the quality of the metal produced, as a rule, for a responsible ...
A. Protasov
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Microstructures and grain refinement performance of Al–Ti–B–C grain refiner via powder metallurgy
Rare Metals, 2015Abstract The Al‐5Ti‐0.5B‐0.5C grain refiner was prepared by powder metallurgy (PM). Microstructures of the grain refiner and its grain refinement performance in commercially pure aluminum (Al) were investigated by X‐ray diffraction (XRD), scanning electron microscopy (SEM), and differential scanning calorimetry ...
Cong Xu +4 more
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Refining And Recycling Metallurgy In The Future
1992Abstract Refining metallurgy deals with the treatment of the extracted or recycled metal by purification and alloying. Traditionally, the refining metallurgist has had a good knowledge of extractive metallurgy and of the impurities present in the raw metal.
T Abel Engh +2 more
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Materials Characterization, 2020
Abstract This study investigated the effect of the microstructure refinement on the oxidation resistance of the Nb-6Mo-20Si-3Cr silicide-based alloy based on how the oxidation behavior of the alloy is severely affected by its microstructure size. Alloy powders were fabricated by a hydrogenation-dehydrogenation method, and were consolidated by a spark
Ki Beom Park +7 more
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Abstract This study investigated the effect of the microstructure refinement on the oxidation resistance of the Nb-6Mo-20Si-3Cr silicide-based alloy based on how the oxidation behavior of the alloy is severely affected by its microstructure size. Alloy powders were fabricated by a hydrogenation-dehydrogenation method, and were consolidated by a spark
Ki Beom Park +7 more
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Perspectives of chemical metallurgy fundamentals in slag innovation
ProceedingsThe ferrous and non-ferrous metallurgical industries have been utilising slags, fluxes and mattes for process optimisation and quality improvements at high temperatures.
S. Lee, I. Sohn
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