89 Result(s)
within
Guo-dong Wang
Metallic Materials
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Article
Microstructure Evolution and Property of Spray-Formed Cu-10 wt% Fe Alloy During Cold Rolling
In order to obtain homogeneity and fine-scale microstructure of Cu–Fe alloy, a Cu-10 wt% Fe alloy slab was prepared by spray forming. The effects of cold rolling reduction on the alloy microstructure, mechanic...
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Article
Hydrogen Embrittlement of Advanced High-Strength Steel for Automobile Application: A Review
The hydrogen embrittlement (HE) fracture of advanced high-strength steels used in lightweight automobiles has received increasing public attention. The source, transmission, and movement of hydrogen, character...
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Article
Modeling flow stress and grain size of GCr15 bearing steel at high-temperature deformation near end of solidification
Hot-core heavy reduction rolling is an innovative technology for continuous casting billet at the end of solidification. The deformation characteristics of GCr15 bearing billet were investigated over the tempe...
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Article
Heat transfer characteristics for double-jet in different flow regions on a thick plate
During multi-jet cooling, the complex hydrodynamic characteristics caused by the interaction between jets will affect the heat transfer of the plate. To further clarify the heat transfer characteristics in dif...
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Article
Solidification microstructure of high borated stainless steels with rare earth and titanium additions
To study the effects of rare earth (RE) and Ti on the solidification microstructure of high borated stainless steels, 1.6 wt% B stainless steel doped with RE and 2.1 wt% B stainless steel doped with Ti were pr...
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Article
Microstructure and mechanical properties of hot-rolled low-carbon steel containing Ti–Ca oxide particles: a comparison between base metal and HAZ
The effect of inclusion-induced nucleation on hot-rolled steel base metal was evaluated in comparison with welding heat-affected zone (HAZ). Microstructure and mechanical properties of hot-rolled low-carbon st...
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Article
Effect of deformation parameters in unrecrystallization range on microstructural characteristics in Al-bearing hot-rolled TRIP steel
The scanning electron microscope, transmission electron microscope, optical microscope, X-ray diffraction and hardness tests were used to investigate the effect of deformation parameters in unrecrystallization...
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Article
Effect of Cooling Rates in Coiling Process on Microstructures and Mechanical Properties in Al-Bearing Hot-Rolled TRIP Steel
In this study, the effect of cooling rates on microstructures and mechanical properties in a Al-bearing hot-rolled transformation-induced plasticity steel was investigated. The experiments were carried out usi...
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Article
The Role of Retained Austenite on the Mechanical Properties of a Low Carbon 3Mn-1.5Ni Steel
The present studies focus on the correlation between retained austenite characteristics and the cryogenic temperature Charpy impact toughness, strength, and plasticity. The steels with different volume fractio...
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Article
Carbide Precipitation in Ferrite in Nb–V-Bearing Low-Carbon Steel During Isothermal Quenching Process
The precipitation behavior of nanometer-sized carbides in ferrite in Nb–V-bearing low-carbon steel was studied by electron microscopy and nanoindentation hardness measurements. The results indicated that inter...
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Article
Effects of Cooling Paths on Through-Thickness Microstructure and Mechanical Properties of Heavy Gauge X80 Pipeline Steel
The effects of various cooling paths on uniformity of through-thickness microstructure and mechanical properties of X80 pipeline steel of 22.0 mm in thickness were studied. The finite difference method was emp...
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Article
Formation of Widmanstätten Austenite in Strip Cast Grain-Oriented Silicon Steel
The formation of Widmanstätten austenite was studied in strip cast grain-oriented silicon steel. The microstructure was investigated by optical microscopy and scanning electron microscopy. The orientations of ...
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Article
Effects of Processing Variables on Microstructure and Yield Ratio of High Strength Constructional Steels
The process of “controlled rolling+relaxation+ultra fast cooling (UFC)” for high strength constructional steel with low yield ratio was presented. Microstructure and corresponding relationship with low yield r...
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Article
Influence of Heat Treatments on the Microstructural Evolution and Resultant Mechanical Properties in a Low Carbon Medium Mn Heavy Steel Plate
In this study, the microstructural evolution and resultant mechanical properties in a low carbon medium Mn heavy steel plate were investigated in detail. The results show that the introduction of medium mangan...
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Article
Effects of Two-Stage Cold Rolling Schedule on Microstructure and Texture Evolution of Strip Casting Grain-Oriented Silicon Steel with Extra-Low Carbon
A 0.27 mm-thick grain-oriented silicon steel sheet with extra-low carbon was successfully produced by a novel processing route including strip casting, normalizing, two-stage cold rolling with an intermediate ...
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Article
Characterization of Microstructure and Texture in Grain-Oriented High Silicon Steel by Strip Casting
Grain-oriented 4.5 wt% Si and 6.5 wt% Si steels were produced by strip casting, warm rolling, cold rolling, primary annealing, and secondary annealing. Goss grains were sufficiently developed and covered the e...
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Article
Open AccessThe Relationship Between Microstructural Evolution and Mechanical Properties of Heavy Plate of Low-Mn Steel During Ultra Fast Cooling
We describe here the electron microscopy and mechanical property studies that were conducted in an industrially processed 20- and 40-mm C-Mn thick plates that involved a new approach of ultrafast cooling (UFC)...
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Article
Microstructural evolution and properties of a high strength steel with different direct quenching processes
A high strength low alloy steel with low carbon equivalent was selected for simulating online direct quenching and coiling (DQ-C) process. The influence of stop quenching temperature on mechanical properties a...
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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
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...
