58 Result(s)
within
Manufacturing, Machines, Tools, Processes
Yong-** Dong
Engineering
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Article
A strategy to control microstructures of a Ni-based superalloy during hot forging based on particle swarm optimization algorithm
In this study, a strategy based on the particle swarm optimization (PSO) algorithm is developed to control the microstructures of a Ni-based superalloy during hot forging. This strategy is composed of three pa...
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Article
Open AccessMulti-response optimization of Ti-6Al-4V turning operations using Taguchi-based grey relational analysis coupled with kernel principal component analysis
Ti-6Al-4V has a wide range of applications, especially in the aerospace field; however, it is a difficult-to-cut material. In order to achieve sustainable machining of Ti-6Al-4V, multiple objectives considerin...
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Article
Recent progress in friction stir welding tools used for steels
Friction stir welding (FSW) technology is being increasingly attractive in welding steels on account of the high-quality weld formation and excellent weld properties. The feasibility of FSW of steels has been ...
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Article
Effect of dissolved niobium on eutectoid transformation behavior
The effect of dissolved niobium on the eutectoid transformation behavior in near-eutectoid high-carbon steels has been studied. Dissolved niobium is important in the eutectoid transformation behavior. It incre...
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Article
Thermal stability of retained austenite and mechanical properties of medium-Mn steel during tempering treatment
The thermal stability of retained austenite (RA) and the mechanical properties of the quenched and intercritical annealed 0.1C-5Mn steel with the starting ultrafine lamellar duplex structure of ferrite and ret...
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Article
Effects of returns on composition, microstructure and mechanical properties of GH4169 superalloy
To recycle the returned alloy effectively, effects of returns proportion on alloy composition, microstructure and compression properties of superalloy GH4169 were studied by means of scanning electron microsco...
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Article
Effect of high pressure on microstructure of cast Mg-8Zn-0.5Zr-0.5Gd alloy
Mg-8Zn-0.5Zr-0.5Gd alloy was prepared by high pressure solidification. Effect of high pressure on microstructure, micro-hardness and corrosion behavior in Hank's solution of the Mg-8Zn-0.5Zr-0.5Gd alloy were i...
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Article
Arc Behavior and Droplet Transfer of CWW CO2 Welding
Cable-type welding wire (CWW) CO2 welding is an innovative process arc welding with high quality, high efficiency and energy saving, in which CWW is used as consumable electrode. The CWW is composed of seven wire...
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Article
Analysis of internal crack in a six-ton P91 ingot
P91 is a new kind of heat-resistant and high-tensile steel. It can be extruded after ingot casting and can be widely used for different pipes in power plants. However, due to its mushy freezing characteristics...
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Article
Influence of vanadium on fracture splitting property of medium carbon steel
The fracture splitting property of medium carbon steel 37MnSiS microalloyed with V up to 0.45% was investigated by using simulated fracture splitting test, for the development of new crackable medium carbon st...
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Article
Effect of Zn, Cu and Ni addition on microstructure and mechanical properties of as-cast Mg-Dy alloys
This paper presents some research information on the effects of Zn, Cu and Ni on the microstructure and mechanical properties of as-cast Mg-2Dy (at.%) alloys. The Mg-2Dy alloy is composed of α-Mg and Mg24Dy5 phas...
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Article
Hot deformation behavior of vanadium-microalloyed medium-carbon steel for fracture splitting connecting rod
Single compression tests were carried out with a Gleeble-3800 thermal simulator to investigate hot deformation behavior of two vanadium-microalloyed medium-carbon steels for fracture splitting connecting rod. ...
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Article
Microstructure and mechanical properties of precipitation strengthened fire resistant steel containing high Nb and low Mo
Through the thermo-mechanical control process (TMCP), a high Nb low Mo fire resistant steel with the yield strength (YS) of 521 MPa at room temperature (RT) and 360 MPa at elevated temperature (ET) of 600 °C w...
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Article
A Novel Low-cost Hot Rolled High Strength Steel for an Automatic Teller Machine
A novel hot rolled steel LG600A with the tensile strength exceeding 700 MPa was developed for automatic teller machine application. The low-cost C-Mn steel was microalloyed with 0.08 mass%–0.12 mass% Ti rather...
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Article
Austenite Grain Refinement and Isothermal Growth Behavior in a Low Carbon Vanadium Microalloyed Steel
The austenite grain refinement through control of the grain growth during reheating process after thermo-mechanical controlled process (TMCP) in a vanadium microalloyed steel was achieved. The formation of ult...
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Article
An On-line Finite Element Temperature Field Model for Plate Ultra Fast Cooling Process
Taking the element specific-heat interpolation function into account, a one-dimensional (1-D) finite element temperature field model for the on-line control of the ultra fast cooling process was developed base...
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Article
Prediction of Mechanical Properties of Hot Rolled Strip by Using Semi-Parametric Single-Index Model
A semi-parametric single-index model based approach was proposed for prediction of mechanical properties of hot rolled strip. Based on industrial production data, a semi-parametric single-index model was devel...
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Article
Effects of Cold Rolling Reduction on Retained Austenite Fraction and Mechanical Properties of High-Si TRIP Steel
Transformation-induced plasticity-aided steel [TRIP steel (0. 4C–1. 5Si–1. 5Mn)] was rolled at room temperature to different thickness reductions (0, 4%, 10%, 20%, 40%, and 60%). The mechanical properties, mic...
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Article
Ultrafine Grained Austenite in a Low Carbon Vanadium Microalloyed Steel
Ultrafine austenite grains with average size of 2 μm were successfully obtained by combining thermo-me-chanical control process followed by reheating in a vanadium microalloyed steel. The mixed microstructure ...
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Article
Optimal Heating in Heat-Treatment Process Based on Grey Asynchronous Particle Swarm Optimization
To ensure plate heating quality and reduce energy consumption in heat-treatment process, optimal heating for plates in a roller hearth furnace was investigated and a new strategy for heating procedure optimiza...
