23 Result(s)
within
Du **n-hua
Metallic Materials
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Article
Movement behavior and separation of Al2O3 from Al melt under rotating magnetic field
The effect of a rotating magnetic field (RMF) on the distribution of Al2O3 particles with an Al melt was studied by means of simulation and experiment. The results show that Al2O3 particles (diameter of 1–10 µm, ...
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Article
Effect of Al content in molten steel on interaction between MgO–C refractory and SPHC steel
The effect of Al content in molten steel on the interaction between SPHC steel (0.005–0.068 wt.% Als and 19 × 10−4–58 × 10−4 wt.% O) and MgO–C refractory (11.63 wt.% C) was investigated. Non-metallic inclusions i...
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Article
Anti-saturation fault-tolerant adaptive torsional vibration control with fixed-time prescribed performance for rolling mill main drive system
An anti-saturation fault-tolerant adaptive torsional vibration control method with fixed-time prescribed performance for the rolling mill main drive system (RMMDS) was investigated, which is affected by contro...
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Article
Amino-acids-functionalized M13-assisted synthesis of silver and silver sulfide nanoparticles
Bio-mineralization has been explored to synthesize nanomaterials with exquisite structures and amazing properties. Amino-acids-functionalized filamentous M13 virus was applied as a scaffold for the synthesis o...
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Article
Extraction efficiency of metals from low-nickel matte via NH4Cl roasting-water leaching process and synthesis of (Ni,Cu,Co)Fe2O4 photocatalyst
Aiming at high energy consumption and large Co loss in the pyrometallurgy of low-nickel matte, a process of NH4Cl roasting-water leaching was proposed to co-extract metals, followed by the separation and utilizat...
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Article
Hydrogen storage properties of Li–Mg–N–B–H/ZrCoH3 composite with different ball-milling atmospheres
Li–Mg–N–B–H/ZrCoH3 composites were successfully synthesized by ball milling of the reactants under argon and hydrogen atmosphere, respectively. The composite synthesized by reactive ball milling (RBM) under hydro...
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Article
Understanding water inrush hazard of weak geological structure in deep mine engineering: A seepage-induced erosion model considering tortuosity
Tortuosity is an important parameter to understand the formation mechanism of water-conducted pathways in deep mine engineering. In this study, a numerical method was proposed to calculate the tortuosity of fr...
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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...
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Article
Self-assembly construction of NiCo LDH/ultrathin g-C3N4 nanosheets photocatalyst for enhanced CO2 reduction and charge separation mechanism study
Graphite phase carbon nitride (g-C3N4) is a promising catalyst for artificial photocatalytic carbon dioxide (CO2) reduction. However, the fast carrier recombination and the inadequacy of the CO2 reduction active ...
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Article
Manufacturing of ultra-large plate forgings by unfolding and flattening of thick cylinders
Ultra-large plate forgings are foundation of heavy machinery, but many parts of the type cannot be made by conventional technologies due to the characters of extreme manufacturing in terms of size and quality ...
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Article
Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel
k]The formation mechanism of acicular ferrite and its microstructural characteristics in 430 ferrite stainless steel with TiC additions were studied by theory and experiment. Using an “edge-to-edge matching” m...
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Article
Coordinated control method of intersection traffic light in one-way road based on V2X
One-way roads have potential for improving vehicle speed and reducing traffic delay. Suffering from dense road network, most of adjacent intersections' distance on one-way roads becomes relatively close, which...
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Article
Effect of Al on microstructure and mechanical properties of cast CrCoNi medium-entropy alloy
Cast CrCoNiAlx (x=0–1.2) medium-entropy alloys (MEAs) were produced by arc melting and flip cast to investigate the alloying effect of Al addition on the microstructure, phase constituent and mechanical propertie...
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Article
Identification of variety of rice and determination of content of each rice in mixtures of two rices by nonlinear chemical analysis
Fingerprints of two varieties of rice and their mixtures were investigated by a nonlinear chemical reaction system consisting of rice components, sodium bromate, manganese sulfate, sulfuric acid and acetone. T...
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Article
Ratcheting Behavior of SA508-3 Steel at Elevated Temperature: Experimental Observation and Simulation
A series of monotonic uniaxial tensile tests, strain-controlled and stress-controlled cyclic tests of SA508-3 steel were conducted from 25 to 350 °C. Results showed that the steel exhibited temperature-depende...
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Article
Microstructure and wear-resistant properties of NiCr–Cr3C2 coating with Ni45 transition layer produced by laser cladding
NiCr–Cr3C2 metal–ceramic composite coating is commonly produced on metal substrate by laser cladding to be used as wear-resistant coating under medium- or high-temperature working conditions. The coating has high...
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Article
Effect of Ti(CN) Precipitation on Texture Evolution and Fish-Scale Resistance of Ultra-Low Carbon Ti-Bearing Enamel Steel
The Ti(C,N) precipitation and texture evolution in ultra-low carbon Ti-bearing enamel steel were studied to discover their correlation. Two different cooling paths of simulative coiling were adopted to gain di...
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Article
Multi-Objective Load Distribution Optimization for Hot Strip Mills
Load distribution is a key technology in hot strip rolling process, which directly influences strip product quality. A multi-objective load distribution model, which takes into account the rolling force margin...
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Article
Simulation calculation of solubility of insoluble compound M m A a in complex system
A simulation calculation model for the solubility of insoluble compound M m A a in complex system was established. According to coordination eq...
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Article
Relationship Among Microstructure and Properties and Heat Treatment Process of Ultra-High Strength X120 Pipeline Steel
The variation of heat treatments including directed quenching and tempering off-line after controlled rolling (DQT) and quenching off-line and tempering off-line after controlled rolling (RQT) with microstruct...
