-
Article
A multi-objective optimization based on machine learning for dimension precision of wax pattern in turbine blade manufacturing
Wax pattern fabrication in the investment casting of hollow turbine blades directly determines the dimension accuracy of subsequent casting, and therefore significantly affects the quality of final product. In...
-
Article
Influence of mechanical reduction amount on internal quality of continuous casting billets by thermal and numerical simulation
With establishment of thermal and numerical simulation models, the influence of reduction amount on solidification structure, segregation and shrinkage porosity of continuous casting (CC) billets was investiga...
-
Article
Synthesis of cerium oxalate hydrate by precipitation technique under external magnetic field
Cerium oxalate hydrate particles were synthesized by precipitation technique under external magnetic field with respective intensities of 0, 0.1, 0.3, and 0.6 T. The particle morphologies were investigated by ...
-
Article
Melting and floating processes of inorganic materials in molten steel: Visualization physical simulation and mathematical modelling
It has been demonstrated that heat absorption method by using the inorganic material rod to cool the molten steel can significantly reduce the macrosegregation level of the large steel ingot. However, owing to...
-
Article
Application of heat absorption method to reduce macrosegregation during solidification of bearing steel ingot
The control of macrosegregation is still a difficult problem for the production of large steel ingots. In order to develop new techniques for producing low-macrosegregation and high-quality steel ingots, the e...
-
Article
Numerical simulation of EMS position on flow, solidification and inclusion capture in slab continuous casting
Electromagnetic stirring (EMS) is a well-known and widely used technology for controlling the fluid flow in continuous casting mold, and therein the selection of stirrer position is closely related to final pr...
-
Article
Sub-pixel high precision dimensional measurement method for aero-engine hollow turbine blade based on industrial computed tomography image
Aero-engine hollow turbine blades are work under prolonged high temperature, requiring high dimensional accuracy. Blade profile and wall thickness are important parameters to ensure the comprehensive performan...
-
Article
Evolution mechanism of recrystallization in a nickel-based single crystal superalloy under various cooling rates during heat treatment
The recrystallization behaviors of a nickel-based single crystal superalloy during heat treatment at 1,200 °C for 4 h with various cooling rates were studied. Results show that the thickness of recrystallizati...
-
Article
Effect of final electromagnetic stirring on solidification microstructure of GCr15 bearing steel in simulated continuous casting
The effect of final electromagnetic stirring on the solidification structure, element segregation, and carbides of GCr15 bearing steel was investigated. The experiment of continuous casting of the steel was ca...
-
Article
Reduction in Microsegregation in Al–Cu Alloy by Alternating Magnetic Field
The microsegregation behavior of the Al-4.5 wt%Cu alloy solidified at different cooling rates under the alternating magnetic field (AMF) was investigated. The experimental results showed that the amount of non...
-
Article
Study on the modification of inclusions by Ca treatment in GCr18Mo bearing steel
The effect of Ca treatment on the modification of inclusions in Al-killed GCr18Mo bearing steel was studied and a thermodynamic and kinetic model was established. The experimental results showed that oxygen co...
-
Article
Effect of Transverse Static Magnetic Field on Droplets Transient and Inclusions Evolution During the Electroslag Remelting Process of GCr15 Ingots
The voltage was recorded to investigate the influence of the static magnetic field on droplet evolution during the magnetically controlled electroslag remelting (MC-ESR) process. MC-ESR experiments were carrie...
-
Article
Grain Refinement During Directionally Solidifying GCr18Mo Steel at Low Pulling Speeds Under an Axial Static Magnetic Field
The present work investigates how axial static magnetic field affects the solidification structure and the solute distribution in directionally solidified GCr18Mo steel. Experimental results show that grain re...
-
Article
Effect of flow control mold on flow field during high-speed continuous casting
An experimental mold was built to study the flow in a flow control mold under high speed continuous casting. The effect of the magnetic field on the flow was investigated using mercury. The results show that t...
-
Article
Effect of seed particles content on texture formation of Si3N4 ceramics by gel-casting in a strong magnetic field
In this paper, the textured Si3N4 ceramics were prepared by adding seed particles during gel-casting in the magnetic field of 6 T, followed by pressureless sintering. The effect of pH on the stability and disper...
-
Article
Study on the liquid metal flow field in FC-mold of slab continuous casting
The flow pattern and the velocity distribution of a liquid metal in the flow control mold (FC-mold) were investigated with a mercury model by analogy to the molten steel during continuous casting. The velocity...
-
Article
Open AccessEffects of magnetic fields on Fe-Si composite electrodeposition
Coatings containing Fe-Si particles were electrodeposited on 3.0wt% Si steel sheets under magnetic fields. The effects of magnetic flux density (MFD), electrode arrangement and current density on the surface m...
-
Article
Progress in application of rare metals in superalloys
Rare metals play an important role in development of superalloys. Over the last two decades, the application of the rare metals in superalloys has achieved progress significantly. They present multi-beneficial...
-
Article
Theoretical model for particle behavior at solidifying front in electromagnetic force field
The particle migrating behavior at solidifying front is discussed in theory with the application of electromagnetic force field (EMFF), on the basis of foregone analysis of force upon particle ahead of solidif...
