267 Result(s)
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Article
Tailoring the Microstructure and Mechanical Properties of Ta-Alloyed AlCoCrFeNi High-Entropy Alloys
Laves phase-reinforced high-entropy alloys (HEAs) have drawn widespread interest due to their excellent mechanical performance at room/elevated temperatures. In this work, we prepare a few (AlCoCrFeNi)100-xTax (x
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Article
Thermodynamic Study of High-Purity TiSi2 Prepared by Directional Solidification
The equilibrium segregation coefficient of impurities in materials is the theoretical basis for its purification. This study used the high-temperature chemical equilibration technique to determine the solid so...
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Article
Effect of Artificial Cooling Extrusion on Microstructure and Mechanical Properties of Mg–Zn–Y Alloys
Microstructure and mechanical properties of Mg–Zn–Y alloys with different Zn/Y atomic ratios with or without artificial cooling (AC) extrusion were systematically investigated in this work. The results show th...
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Article
Prediction Model for Silicon Content of Hot Metal Based on PSO-TCN
The silicon content of hot metal, which is one of the important indexes characterizing the blast furnace temperature, reflects the blast furnace condition, iron output, and energy consumption intuitively. For ...
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Article
Microstructure and Mechanical Property of the Large Cross-Sectioned Mg–Gd–Y–Zn–Zr Alloy Produced by Small Extrusion Ratio
In this work, the microstructure and mechanical properties of large cross-sectioned Mg–9Gd–3Y–1.2Zn–0.5Zr (VWZ931) samples produced by the small extrusion ratio has been investigated. The as-extruded VWZ931 sa...
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Article
Wettability and Interfacial Phenomena Between Silicon and Sulfur-Bearing Steels and Solid CaO Substrates
The wettability between a Si–S steel with 0.2 wt pct sulfur and 0~3.5 wt pct silicon and a CaO substrate was investigated using a sessile drop method at 1550 °C. The equilibrium contact angle between the Si–S ...
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Article
Revealing the Influential Mechanism of the Direct Current on Columnar-to-Equiaxed Transition in Directionally Solidified Al–15Sn–1Cu Alloy Under 10 T Magnetic Field
The effect of the direct current (DC) on the solidification structure in the directional solidification of Al–15Sn–1Cu alloy under 10 T magnetic field was investigated experimentally and numerically. The exper...
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Article
High-Temperature Stability of Mg–1Al–12Y Alloy Containing LPSO Phase and Mechanism of Its Portevin–Le Chatelier (PLC) Effect
In this study, the high-temperature stability and the generation mechanism of the Portevin–Le Chatelier (PLC) effect in solid-solution Mg–1Al–12Y alloy with different heat treatment processes were investigated...
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Article
A Data-Driven Approach for the Fast Prediction of Macrosegregation
Macrosegregation is of great importance to study due to its negative impact on the quality of casting. Although numerical models can predict macrosegregation during alloy solidification, solving the partial di...
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Article
Evaluation of Mold Electromagnetic Stirring in Slab Continuous Casting Based on the Steel/Slag Interface Behavior
A new two-way coupled magnetohydrodynamic (MHD) model considering the dynamics change of electromagnetic force at steel–slag interface was established to investigate the multiphase flow and slag entrapment in ...
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Article
In-Situ Observation of Collision and Agglomeration of La2O3–La2S3 Inclusions on Surface of Molten 304 Stainless Steels
In the current study, thermodynamic calculations and laboratory experiments were conducted to investigate the evolution of inclusions in a 304 stainless steel with varied lanthanum contents. A thermodynamic da...
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Article
Effect of Magnetic Field Configuration on Stray-Crystal Formation with Different Platform Sizes during Directional Solidification of Single-Crystal Superalloy
The magnetic field is an effective means to control the solidification structure and the defects of metal and semiconductor crystals. This work investigates the effects of Cusp magnetic field (CMF) and longitu...
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Article
Effects of Heat Treatment on the Mechanical and Corrosion Resistance Properties of 316L NRHH Porous Bone Scaffolds by Selective Laser Melting
Heat treatment was applied to 316L porous scaffolds with a negative re-entrant hexagonal honeycomb (NRHH) structure made by selective laser melting (SLM) at temperatures between 450 °C and 1100 °C. The effects...
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Article
Refinement of α′ Martensite by Oxygen in Selective Laser Melted Ti–6Al–4V
Oxygen is crucial in influencing the microstructure evolution of selective laser melted (SLMed) Ti–6Al–4V, significantly impacting its applicability in various sectors. Therefore, this study investigates the i...
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Article
Interfacial Reactions Between Ce-Bearing Steels and a MgO-C Refractory
In the current study, the effect of cerium content in the steel on the interfacial reaction between the steel and the MgO–C refractory was investigated in laboratory experiments by immersing MgO–C refractory b...
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Article
Effect of Sn Addition on the Evolution of Inclusions in Metallurgical Grade Silicon
Inclusions in metallurgical grade silicon (MG-Si) can significantly degrade the quality and performance of silicon materials. Thus, it is essential to implement effective measures to control and minimize their...
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Article
Microstructure Evolution and Mechanical Properties of Multilayer AA6061 Alloy Fabricated by Additive Friction Stir Deposition
Multilayer AA6061 aluminum alloy components are successfully fabricated by the additive friction stir deposition (AFSD) process. The surface morphology, microstructure, and mechanical property are investigated...
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Article
On the Microstructure and MnS Precipitation in a High Sulfur Steel Based on Directional Solidification: The Effect of Cooling Rate
Large dendritic MnS is usually formed in high sulfur steels and detrimental to the transverse impact property and mechanical property of steels. In order to accurately reveal the effect of cooling rate on the ...
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Article
Tilting Dynamics and Parameter Dependence of the Dendrite Array Under a Transverse Magnetic Field: A Unified Magnetic Field-Based Phase-Field Study
Convection-driven solute transport has an important effect on the evolution of dendrites during solidification. A unified magnetic field-phase field-lattice Boltzmann model is developed to investigate dendrite...
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Article
Kinetic Model of Desulfurization During RH Refining Process
A kinetic model of the RH desulfurization process was established based on the two-film theory, considering the desulfurizer addition in the RH vacuum chamber and the slag desulfurization in the ladle. The kin...
