57 Result(s)
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Article
Formation rule for Al-based ternary quasi-crystals: Example of Al–Ni–Fe decagonal phase
After examining ternary Al-based quasi-crystalline phase diagrams, we pointed out that the presence of e/a-constant and e/a-variant lines is a common phenomenon. Ternary quasi-crystal compositions are located at ...
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Article
Three-Dimensional Analysis of Rolling by Twin Shear Stress Yield Criterion
Using the twin shear stress yield criterion, the surface integral of the co-line vectors, and the integration depending on upper limit, Kobayashi’s three-dimensional velocity field of rolling was analyzed and ...
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Article
Microstructure and Hardness of T250 Maraging Steel in Heat Affected Zone
Electron-beam (EB) welding was used in T250 maraging steel, microstructures of both base material and heat affected zone (HAZ) were investigated by optical microscopy (OM), scanning electron microscopy (SEM) a...
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Article
Application of geometric midline yield criterion for strip drawing
A new linear yield criterion expressed by the geometric midline of error triangle between Tresca and Twin shear stress yield loci on the π-plane in Haigh-Westergaard space was introduced. The criterion was wri...
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Article
Effect of thermomechanical controlled processing parameters on microstructure and properties of Q460q steel
With tensile test, impact test, and optical microscopy, the effect of thermomechanical controlled processing (TMCP) parameters on the microstructure and properties of Q460 steel was studied and analyzed. The T...
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Article
Transparency of modified vinyl-silsesquioxane films and its validation by computing energy-band structure
Using vinyl-silsesquioxane modified with various amounts of tetraethoxysilane (TEOS) and titanium tetrabutoxide (TTB), two kinds of hybrid films, film-vinyl-silsesquioxane-TEOS (f-VSTE) and film-vinyl-silsesqu...
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Article
Derivation of plastic specific work rate for equal area yield criterion and its application to rolling
On the basis of the analysis of the hexagons inscribed and circumscribed of the Mises yield circle on the π-plane in Haigh Westergaard stress space, a new equation called equal area linear yield criterion or E...
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Article
Kinematics and Dynamics Model of GH4169 Alloy for Thermal Deformation
The stress-strain curves and microstructure properties of superalloy GH4169 was tested by thermal simulation experiment with different parameters, which were deformation temperature and strain rate and strain ...
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Article
Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting
The solidified crust was harmful to Al-killed steel casting using a basic tundish flux. After sampling from an actual tundish, XRD, SEM and EDX examinations were carried out to analyze the microstructure of so...
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Article
Research and Application of Flat Roll Technology in the Downstream Stands for CSP
CVC mills are generally used in the whole stands of CSP (Compact Strip Product). Their special “s” curve of work roll contour and shifting strategy aimed at controlling strip shape, and the characteristics of ...
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Article
Magnetoelectric effect in a bi-rectangular structure composed of negative/positive magnetostrictive and piezoelectric flakes
Magnetoelectric (ME) effect has been studied in bi-rectangular structure made up of epoxy-bonded negative/positive magnetostrictive and piezoelectric flakes. The ME effect is affected by negative and positive ...
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Article
A Coupling Dynamic Model for Dissolution and Reduction of Chromium Ore in a Smelting Reduction Converter
For describing and resolving the process of chromium ore smelting reduction in a converter preferably, the coupling dynamic model was established based on the kinetic models of chromium ore dissolution and int...
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Article
Rolling With Simplified Stream Function Velocity and Strain Rate Vector Inner Product
The dual-stream function velocity field is reduced in order to analyze two-dimensional plate broadside rolling in roughing. The strain rate vector inner product and integral mean value theorem, as well as co-l...
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Article
Effect of Modification Treatment for Reduction of Dephosphorization Slag in Hot Metal Bath
To extract the valuable elements from the steel slag, a novel approach has been proposed by modification treatment to provide the stronger driving forces and accelerate the reduction. Three types of dephosphor...
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Article
Limit Analysis of Defect-Free Pipe Elbow Under Internal Pressure With Mean Yield Criterion
With mean yield (MY) criterion, an analytical solution of the collapse load for a defect-free pipe elbow under internal pressure is first obtained. It is a function of ratio of thickness to radius t0/r0, strain h...
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Article
Microstructure of a Variety of Cokes After Alkali Enrichment
It is difficult to distinguish tam** coke and top charging coke by conventional testing methods, such as cold strength, abrasion resistance, reactivity and strength after reaction. Some of tam** coke s pro...
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Article
Impact Toughness of an NM400 Wear-Resistant Steel
An NM400 wear-resistant steel was hot rolled and then the plates were heat-treated by direct quenching and tempering (DQT) and reheat quenching and tempering (RQT) techniques, respectively. The Charpy impact t...
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Article
Magnetic Properties of Nanocrystalline Powder Cores Using Mechanically Crushed Powders
Toroidal shape FeCuNbSiB nanocrystalline alloy powder cores were prepared by cold pressing using mechanically crushed and ball-milled powders, respectively. The morphologies and their effects on the magnetic p...
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Article
Corrosion Resistance and Semiconducting Properties of Passive Films Formed on 00Cr13Ni5Mo2 Supermartensitic Stainless Steel in Cl− Environment
The semiconducting properties of passive films grown on 00Cr13Ni5Mo2 supermartensitic stainless steel were investigated in comparison with conventional 2Cr13 martensitic stainless steel. Cyclic voltammetry and...
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Article
Magnetic Properties of FeSiBC Amorphous Alloy Powder Cores Using Mechanical-Crushed Powder
The FeSiBC amorphous powder cores were fabricated using powders of the FeSiBC amorphous ribbons which were mechanically crushed for a short time, and the relationship between magnetic properties and powder par...
