58 Result(s)
within
Manufacturing, Machines, Tools, Processes
Yong-** Dong
Engineering
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Article
Improvement in corrosion resistance of Mg97Zn1Y2 alloy by Zr addition
Magnesium alloys, known for their exceptional lightweight properties, have presented challenges in various applications due to their limited corrosion resistance. In this study, the corrosion resistance of Mg97Zn
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Article
Mold breakout prediction based on computer vision and machine learning
Breakout is the most serious production accident in continuous casting and must be detected and predicted by stable and reliable methods. The sticking region, which forms on the local copper plate and expanded...
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Article
Microstructure and properties of LZQT600-3 HCCDIBs for plunger pump cylinder
It is important to improve the comprehensive performance of the ductile iron bars (DIBs) for the cylinder block of the extra high pressure hydraulic plunger pump and accelerate the industrial application. In t...
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Article
Controlling oxygen content in electro-slag remelting steel by optimizing slag-steel reaction process
The thermodynamic equilibrium of deoxidation reactions between molten slag and steel was calculated using a slag-steel coupling thermodynamic model and the mass conservation model based on the ion-molecular co...
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Article
Gas release characteristics during carbonization of iron coke hot briquette and influence of heating rate
The release characteristics of CH4, H2, CO and CO2 from iron coke hot briquette (ICHB) during carbonization were studied. The results show that compared with briquette without iron ore, Fe3O4 can inhibit the rele...
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Article
Open AccessNew Technology of Multidirectional Loading Rotary Extrusion
To satisfy the requirements for the precise formation of large-scale high-performance lightweight components with inner ring reinforcement, a new multidirectional loading rotary extrusion forming technology is...
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Article
Reaction characteristics of carbon-bearing pellets of Bayan Obo lean iron ores in a static magnetic field
The use of low-grade, refractory and composite paragenetic mineral resources is necessary for overcoming the shortage of iron ore resources in China. As a solution to the treatment of such iron ores, the direc...
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Article
Effect of secondary aging on microstructure and properties of cast Al-Cu-Mg alloy
To obtain better comprehensive properties of cast Al-Cu-Mg alloys, the secondary aging (T6I6) process (including initial aging, interrupted aging and re-aging stages) was optimized by an orthogonal method. The...
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Article
Roles of nanoscale precipitates and metastable austenite in determining strength and toughness of high-strength Nb-bearing steel
The effects of tempering temperature on the microstructure and mechanical properties of high-strength structural steel containing niobium were investigated to examine the roles of nanoscale precipitates and me...
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Article
Quantitative multi-phase-field modeling of non-isothermal solidification in hexagonal multicomponent alloys
A quantitative multi-phase-field model for non-isothermal and polycrystalline solidification was developed and applied to dilute multicomponent alloys with hexagonal close-packed structures. The effects of Lew...
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Article
Simulation of α-Al grain formation in high vacuum die-casting Al-Si-Mg alloys with multi-component quantitative cellular automaton method
Al-Si-Mg alloys are the most commonly used material in high vacuum die-casting (HVDC), in which the morphology and distribution of α-Al grains have important effect on mechanical properties. A multi-component ...
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Article
Evolution of microstructure in reheated coarse-grained zone of G115 novel martensitic heat-resistant steel
Based on the thermal simulation method, a systematical analysis was conducted on the effect of welding peak temperature and the cooling time that takes place from 800 to 500 °C on microstructure, precipitates,...
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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...
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Chapter
Flexible 3D Profile Roll Forming Technology
Nowadays, roll forming becomes one of the most promising sheet metal forming method due to its excellent superiority of capital saving and capability of lightweight, high accuracy manufacturing technique. It h...
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Article
Effect of Ti/V ratio on thermodynamics and kinetics of MC in γ/α matrices of Ti–V microalloyed steels
Through the solubility product theory of the ternary secondary phase, classical nucleation theory, and Ostwald ripening theory, a model was established to describe the thermodynamics and kinetics of (Ti, V)C p...
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Article
Effect of ageing treatment on microstructures, mechanical properties and corrosion behavior of Mg-Zn-RE-Zr alloy micro-alloyed with Ca and Sr
Effects of ageing treatment on the microstructures, mechanical properties and corrosion behavior of the Mg-4.2Zn-1.7RE-0.8Zr-xCa-ySr [x=0, 0.2 (wt.%), y=0, 0.1, 0.2, 0.4 (wt.%)] alloys were investigated. Results ...
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Article
Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning
Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness ratios. The effects of spinning parameters on the forming accuracy of ellips...
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Article
Open AccessOptimization of Cutting Parameters for Trade-off Among Carbon Emissions, Surface Roughness, and Processing Time
As the manufacturing industry is facing increasingly serious environmental problems, because of which carbon tax policies are being implemented, choosing the optimum cutting parameters during the machining pro...
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Article
Nanoscratching and mechanical behaviors of high-entropy alloys with different phase constituents
High-entropy alloys (HEAs) exhibit unique microstructural features and properties in nanoscale and atomic scale because of their multi-element alloy system. The nanoscratching behaviors of three HEAs with diff...
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Article
Effect of compression deformation on precipitation phase behavior of B-containing S31254 super austenitic stainless steel
Effects of compression deformation on the sigma-phase precipitation behavior of B-containing S31254 stainless steel after solution treatment were studied using the Gleeble compression test. The cold and hot pr...
