Microstructure Control of Steels through Dispersoid Metallurgy Using Novel Grain Refining Alloys
ISIJ International, 2006 This paper describes how small inclusions (designated dispersoids) can be used to control the microstructure of steels. The term "dispersoids" refers to oxides, sulphides, nitrides and carbides which are in the 1 μm size range and capable of promoting grain refinement during solidification by a process of epitaxial nucleation or in the solid state ...
Øystein Grong +3 more
openaire +4 more sources
Highlighting the Role of Archaea in Urban Mine Waste Exploitation and Valorisation
Recycling, 2023 E-materials become e-waste once they have been discarded without the intent of reuse. Due to its rich content of metals, among which many are Critical Raw Materials (CRMs), e-waste can be considered an urban mine to exploit and valorise.
Annalisa Abdel Azim +5 more
doaj +1 more source
Lead removal from crude antimony in the pyrometallurgical refining process by using NaPO3
工程科学学报, 2015 In order to solve the problem of lead removal from crude antimony in the traditional antimony refining process,NaPO3 was introduced as a lead elimination reagent to generate phosphate slag and the slag was removed by floating on the surface of liquid ...
YE Long-gang +3 more
doaj +1 more source
Microstructural refinement and mechanical properties improvement of elemental powder metallurgy processed Ti-46.6Al-1.4Mn-2Mo alloy by carbon addition [PDF]
Metallurgical and Materials Transactions A, 2001 Strengthening of a gamma TiAl alloy was sought by a chemical modification of the composition with carbon. Up to 0.6 at. pct of carbon was added to the Ti-46.6Al-1.4Mn-2Mo alloy processed by elemental powder metallurgy. Carbon addition resulted in considerable microstructural changes such as refinement, by a factor of about 2, of the lamellar ...
h. s. park +5 more
openaire +2 more sources
Study on Motion Melting and Mixing of Ice Samples in a Water Model of Ladle
Taiyuan Ligong Daxue xuebao, 2023 Purposes In ladle metallurgy, block or whole bag alloy materials and lime are usually added. In recent years, some companies have reported a new process of adding scrap steel to ladle refining furnace. Studying the melting and homogenization mechanism of
Jiangjun ZHU +6 more
doaj +1 more source
Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels [PDF]
, 2017 Cr – Mn – Mo – Ni pressure vessel steels containing 0.54 and 1.55% Si are studied. Metallographic and fractographic analyses of the steels after tempering at 650 and 700°C are performed.
A Gustafson +27 more
core +1 more source
Longitudial fluctuations of rotors of disk knife refiners [PDF]
, 2020 The subject of the study is the longitudinal fluctuations of the rotors of disk knife refiners. The dynamic and mathematical models of rotors of disk mills are developed.
Vikharev, S. N.
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Physical modelling of tundish slag entrainment under various technological conditions [PDF]
, 2017 This paper deals with the issue of physical modelling of vortexes creation and tundish slag entrainment over the mouth of the nozzle into the individual casting strands. Proper physical model is equivalent to the operational continuous casting machine No.
Gryc, Karel +7 more
core +1 more source
Application status and prospect of hydrogen under low carbon background
能源环境保护, 2023 The massive consumption of fossil fuels has caused the excessive emission of greenhouse gases and caused serious environmental issues. It is urgent to optimize the energy structure, develop clean energy and achieve "low-carbon" development.
XU Jiangrong* +5 more
doaj +1 more source
Flexural fluctuations of the rotors of knife refiners [PDF]
, 2020 The subject of the study is the flexural fluctuations of the rotors of knife refiners. The dynamic and mathematical models of rotors of disk mills are developed. As a result of research, a method for vibration calculation of rotors is proposed and tested.
Sannikov, A. A. +2 more
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