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Article
Synergistic effect of Zr and Mo on precipitation and high-temperature properties of Al-Si-Cu-Mg alloys
This study focuses on finding a solution to the sharp decline in mechanical properties of Al-Si-Cu-Mg alloys due to rapid coarsening of traditional intermediate phases at high temperature. A new type of modifi...
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Article
A review on metal additive manufacturing: modeling and application of numerical simulation for heat and mass transfer and microstructure evolution
Metal additive manufacturing technology has been widely used in prototy**, parts manufacturing and repairing. Metal additive manufacturing is a multi-scale and multi-physical coupling process with complex ph...
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Article
Case-based reasoning model based on attribute weights optimized by genetic algorithm for predicting end temperature of molten steel in RH
Temperature control is the key of Ruhrstahl-Heraeus (RH) process in steelmaking plant. The accuracy of RH control model greatly affects the molten steel temperature fluctuation. To obtain RH control model with...
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Article
Zr55.8Al19.4(Co1−xCux)24.8 (x = 0–0.8 at.%) bulk metallic glasses for surgical devices applications
Zr–Al–Co–Cu bulk metallic glasses (BMGs) are promising surgical materials. By using the electron concentration criterion for BMG composition design, a series of Zr55.8Al19.4(Co1−xCux)24.8 (x = 0–0.8 at.%) alloys ...
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Article
Combustion performance of nozzles with multiple gas orifices in large ladles for temperature uniformity
In order to improve the baking temperature uniformity of the large ladle in steelmaking plants, the flame combustion characteristics of nozzles with different inner structures were numerically simulated with t...
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Article
A New Approach for Refining Carbide Dimensions in M42 Super Hard High-speed Steel
Obtaining small carbides is crucial but difficult for high-speed steels. A new approach for refining carbide dimensions in M42 super hard high-speed steel by increasing cooling rate and spheroidizing treatment...
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Article
Controlling transverse cracks of slab based on edge control technology
With the wide application of the micro alloy technology in recent years, the problem of slab surface transverse crack has become more severe. Based on the analysis of the J steelworks’ X80 steel slab transvers...
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Article
End temperature prediction of molten steel in RH based on case-based reasoning with optimized case base
Data redundancy issue of case-based reasoning (CBR) method can negatively influence calculation efficiency and prediction accuracy as the production data accumulate when predicting end temperature in Ruhrstahl...
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Article
Technology Development for Controlling Slab Transverse Corner Crack of Typical Micro-alloyed Steels
A mathematical model for simulating the fluid flow, heat transfer and solidification in the conventional mold and the chamfer mold, together with a finite clement stress-strain model in the straightening proce...
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Article
Hybrid Model of Molten Steel Temperature Prediction Based on Ladle Heat Status and Artificial Neural Network
Aiming at the characteristics of the practical steelmaking process, a hybrid model based on ladle heat status and atificial neural network has been proposed to predict molten steel temperature. The hybrid mode...
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Article
Prediction of Endpoint Phosphorus Content of Molten Steel in BOF Using Weighted K-Means and GMDH Neural Network
The hybrid method composed of clustering and predicting stages is proposed to predict the endpoint phosphorus content of molten steel in BOF (Basic Oxygen Furnace). At the clustering stage. the weighted K-mean...