95 Result(s)
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Article
New electromagnetic variable flow device for slab continuous casting mold: mechanical design and magnetic field analysis
Obtaining a reasonable mold flow field for casting slabs with different sections is challenging by solely modifying the nozzle structure and continuous casting process. Research was conducted on small-sectione...
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Article
Interfacial behaviors between ZG13Cr9Mo1VNbN stainless steel and chromite sand
To elucidate the formation mechanisms of burn-on sand and metal penetration during sand casting, some laboratory experiments were carried out at different temperatures (1813, 1833, 1853, and 1873 K) and holdin...
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Article
Effect of initial microstructure on microstructure evolution and mechanical properties of 0.12C martensitic steels during quenching and tempering
The microstructure evolution and mechanical properties of a Fe–0.12C–0.2Si–1.6Mn–0.3Cr–0.0025B (wt.%) steel with different initial microstructures, i.e., hot rolled (HR) and cold rolled–annealed (CRA), were st...
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Article
Preparation and properties of ZrO2-strengthened porous mullite insulation materials using Y2O3 additive
ZrO2-strengthened porous mullite insulation materials were prepared by foaming technology utilizing ZrSiO4 and Al2O3 as primary materials and Y2O3 as an additive. The effects of Y2O3 contents on the phase composi...
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Article
Effect of silica on crystallization process of calcium ferrite: thermodynamic and kinetic analysis
SiO2 is the main component of gangue in sinters and a crucial constituent in the formation of the SiO2–Fe2O3–CaO (SFC) system. The non-isothermal crystallization kinetics of the SFC system were investigated using...
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Article
Magnesium-containing pellet regulating blast furnace ferrous burden interaction: softening–melting behavior and mechanism
MgO participates in all stages of sintering, pelletizing, and blast furnace ironmaking, and synergistically optimizing the distribution of MgO in ferrous burden can effectively enhance the interaction within t...
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Article
Effect of rare earth on primary carbides in H13 die steel and their addition method: a review
Larger-sized primary carbides lead to stress concentration during the application of H13 hot-work die steel, resulting in microcracks and fatigue failure. Rare earth was usually added to modify the carbides an...
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Article
Effect of Mo and cold forging deformation on strength and ductility of cobalt-based alloy L605
Mo element was added to cobalt-based alloy L605, and cold forging deformation was performed. The effects of the addition and cold forging deformation on the microstructure and mechanical properties of the allo...
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Article
Mechanism of high-energy pulsed current-assisted rolling of 08AL carbon steel ultra-thin strip
To improve the plastic deformation performance of a 08AL carbon steel ultra-thin strip, a pulsed electric field was integrated into the plastic processing of the ultra-thin strip, and the effects of high-energ...
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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
Evolution of interfacial heat transfer, contact behavior and microstructure during sub-rapid solidification of molten steel with different hydrogen contents
Typical Q235 low-carbon steel samples with different hydrogen contents (0.0004, 0.0008, and 0.0013 wt.%) were prepared by adjusting the environment humidity and moisture. The effects of hydrogen on interfacial...
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Article
Effect of oxygen enrichment on sintering behavior of high proportion vanadium–titanium magnesite concentrates
To achieve high-efficiency utilization of complex and unmanageable iron-containing minerals, the effects of oxygen enrichment on productivity, yield, flame front speed, exhaust gas peak temperature, and desulp...
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Article
Effect of Ca and Ti contents on characteristics of inclusions in Fe–Si–Cr–Mn–Al–Ti–Ca–O melts
The inclusion characteristics in 55SiCr spring steel with different contents of titanium and calcium were investigated. The chemical compositions of steel samples were detected by inductively coupled plasma op...
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Article
Prediction of hot-rolled strip crown based on Boruta and extremely randomized trees algorithms
The quality of hot-rolled steel strip is directly affected by the strip crown. Traditional machine learning models have shown limitations in accurately predicting the strip crown, particularly when dealing wit...
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Article
Open AccessModeling of contact temperatures and their influence on the tribological performance of PEEK and PTFE in a dual-pin-on-disk tribometer
The direct blending of polyether ether ketone (PEEK) with a solid lubricant such as polytetrafluoroethylene (PTFE) improves its tribological performance, but compromises its outstanding mechanical properties a...
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Article
Open AccessCarbon fiber cannot always reduce the wear of PEEK for orthopedic implants under DPPC lubrication
Excellent wear resistance is an important feature of orthopedic implants. However, although pure polyetheretherketone (PEEK) is outperformed by carbon fiber-reinforced PEEK (CF-PEEK) for stability and durabili...
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Article
Longitudinal corner crack of chamfered slab and optimization of mould
Chamfered mould has gradually become a new technology equipment to eliminate transverse corner crack. However, longitudinal corner crack ratio of chamfered slab was very high. Solidification microstructure was...
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Article
A comparative study of surface characterization and corrosion behavior of micro-arc oxidation treated Ti–6Al–4V alloy prepared by SEBM and SLM
Additively manufactured Ti–6Al–4V (TC4) parts have been successfully employed as artificial implants in dental and orthopedic surgery due to their excellent mechanical properties. However, the suboptimal corro...
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Article
Investigation on bonding interfaces of an SA508 steel billet manufactured by additive forging
An experimental steel billet of SA508 reactor pressure vessel material was manufactured by the additive forging method, and microstructure and mechanical properties of the hot-compression bonding interface wer...
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Article
Hydrogen trap** and electrochemical corrosion behavior of V–N microalloyed X80 pipeline steels consisting of acicular ferrite and polygonal ferrite
Hydrogen trap** behavior of V–N microalloyed X80 pipeline steels was studied by means of hydrogen permeation and hydrogen induced cracking (HIC) tests. In addition, the electrochemical performance of the ste...
