109 Result(s)
within
**ao-** Sun
Applied and Technical Physics
Materials Science, general
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Article
Emission characteristics and control technology of heavy metals during collaborative treatment of municipal solid waste incineration fly ash in iron ore sintering process
The municipal solid waste incineration fly ash (MSWI-FA) contains a large amount of heavy metals, and the process of iron ore sintering and treating fly ash needs to pay attention to the migration characterist...
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Article
A novel route to enhance high-temperature mechanical property and thermal shock resistance of low-carbon MgO–C bricks by introducing ZrSiO4
Conventional MgO–C bricks (graphite content > 14 wt.%) produce a great deal of greenhouse gas emission, while low-carbon MgO–C bricks have serious thermal shock resistance during high-temperature service. To e...
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Article
Production of ultrafine iron powder by low-temperature hydrogen reduction: properties change with temperature
Ultrafine iron powder is widely used due to its excellent performance. Hydrogen reduction of fine-grained high-purity iron concentrate to prepare ultrafine iron powder has the advantages of low energy consumpt...
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Article
Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism
Hot air sintering technology is used to improve the quality and production efficiency of sintered ore. However, the current thick layer condition highlights the disadvantage of the low oxygen potential of the ...
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Article
Proposing a machine learning approach to analyze and predict basic high-temperature properties of iron ore fines and its factors
The basic high-temperature properties of iron ore play a crucial role in optimizing sintering and ore blending, but the testing process for these properties is complex and has significant lag time, which canno...
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Article
Prediction of suitable water content in granulation of sintering mixture based on Litster’s model
Suitable water content plays a decisive role in the granulation of sintering mixtures. Herein, a method was proposed to predict the suitable water content for effective granulation on the basis of Litster’s gr...
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Article
Characteristics and stability of oxide + carbonitride in H13 steel at 1250 °C
The morphology, size, quantity, and composition of complex oxide + carbonitride in H13 steel held at 1250 °C for 5, 10, and 15 h were determined. The results show that the ratio and number of complex carbonitr...
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Article
Strengthening and control of second-phase particle precipitation in ferritic/austenitic/martensitic heat-resistant alloys: a review
Heat-resistant alloys with excellent mechanical properties are widely used in various fields, and further improvement in their properties is essential to meet the requirements in new-generation advanced superc...
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Article
Migration behavior of solid fuel particles during granulation process and its influence on combustion property
Iron ore sintering process is the main CO2 emission source throughout the integrate steelworks, which primarily comes from the combustion of solid fuels. Improving the combustion efficiency and reducing the solid...
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Article
Comparison investigation on microstructure and properties of dissimilar welds by laser alignment welding and laser offset welding between Al–Si coated 1.5 GPa and novel 2 GPa press hardened steels
Press hardened steel (PHS) plays a key role in the manufacture of anti-collision structural components. The formation of δ-ferrite is a suffering issue for the laser welding of Al–Si coated PHS. Oscillating la...
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Article
Fundamental research on recovering metals from hot-dip Zn–Al–Mg dross by supergravity separation
The dross generated in the hot-dip Zn–Al–Mg coating process is a valuable co-product, since it contains high quantities of recyclable alloy. A new method to recover Zn–Al–Mg alloy from the industrial Zn–Al–Mg ...
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Article
A boundary layer model for capture of inclusions by steel–slag interface in a turbulent flow
A boundary layer model was developed to predict the capture of inclusions by steel–slag interface in a turbulent fluid flow, which is based on the detailed analysis of inclusion trajectories. The effective bou...
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Article
Automatic recognition and intelligent analysis of central shrinkage defects of continuous casting billets based on deep learning
The internal quality inspection of the continuous casting billets is very important, and mis-inspection will seriously affect the subsequent production process. The UNet-VGG16 transfer learning model was used ...
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Article
Molecular dynamics simulations for nanoindentation response of metastable high entropy alloy
The phase transformation mechanism in stress-induced metastable high entropy alloy (HEA) is unclear. In this paper, the nanoindentation deformation behavior of martensitic high entropy alloy metals was investi...
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Article
Application of distributed model predictive control based on neighborhood optimization in gauge–looper integrated system of tandem hot rolling
To solve the coupling relationship between the strip automatic gauge control and the looper control in traditional control strategy of tandem hot rolling, a distributed model predictive control (DMPC) strategy...
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Article
Develo** laterite nickel ore leaching residue as sustainable blast furnace charge
A kind of leaching residue generated during high pressure acid leaching of laterite nickel ore is creatively prepared as blast furnace charge for ironmaking. Results show that the briquettes with uniform shape...
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Article
Stabilization technology and corrosion mechanism of rust layer on Q370 weathering steel surface
A newly developed rust layer on Q370qENH weathering steel (sample C) was studied under dry–wet cycle test of 3.5 wt.% NaCl solution and salt spray test, compared with the bare weathering steel (sample A) and t...
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Article
Hot deformation behavior and microstructure features of FeCrAl–ODS alloy
The hot deformation behavior of FeCrAl–ODS alloys at temperatures of 1050–1200 °C and strain rates of 0.001–1 s−1 was investigated. The peak stress of FeCrAl–ODS alloy during hot deformation decreased with increa...
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Article
Effect of strontium-doped coating prepared by microarc oxidation and hydrothermal treatment on apatite induction ability of Ti13Nb13Zr alloy in vitro
Composite coatings with the variable contents of Sr substituted for Ca in hydroxyapatite (HA) were prepared on the surface of Ti13Nb13Zr alloy by the combination of microarc oxidation (MAO) and hydrothermal tr...
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Article
Prediction model of end-point phosphorus content for BOF based on monotone-constrained BP neural network
Dephosphorization is essential content in the steelmaking process, and the process after the converter has no dephosphorization function. Therefore, phosphorus must be removed to the required level in the conv...
