-
Article
Spheroidization of Sulfide in Sulfur Bearing Steels by Oxygen: An Experimental and First-Principle Investigation
The morphology of single-particle manganese sulfide (MnS) in sulfur bearing steel without oxygen is polyhedral, while it is spherical in the steel containing 70 ppm oxygen. Oxygen can dissolve in MnS to form o...
-
Article
Critical precipitation behavior of MnTe inclusions in resulfurized steels during solidification
Te treatment is an effective method for modifying sulfide inclusions, and MnTe precipitation has an important effect on thermal brittleness and steel corrosion resistance. In most actual industrial application...
-
Article
Analysis of Inclusions in U75V Heavy Rail Steel
Manganese sulfide inclusions are more common in heavy rail steel, and it is very important to control the sulfide in heavy rail steel. In this paper, an optical microscope, scanning electron microscope, etc., ...
-
Chapter and Conference Paper
Formation Mechanism of Band Delta-Ferrite in 416 Stainless Steel and Its Relationship with MnS and M23C6
AISI 416 with a (BS) that is formed by element segregation , and its MnS significantly affects its and properties during the hot working . In this study, we investigated the formation mechanism of the B...
-
Article
Effect of Cooling Rate on Microstructure and Mechanical Properties of a Microlaminated Low-Density Steel
In this study, the effect of the cooling rate on the microstructure and mechanical properties of Fe-4Al-2.5Mn-2Ni-0.18C (wt.%) low-density steel was investigated through scanning electron microscopy, electron ...
-
Article
Precipitation Behavior of Primary Carbide in H13 Bloom Die Steel
To analyze the solidification and precipitation behaviors of primary carbides in H13 bloom die steel, the size, morphology, distribution, and type of carbides from the chilling edge to the center of bloom H13 ...
-
Article
Formation, Aggregation, and Composite with Oxide Mechanisms of Oxysulfide in 1215MS Free-Cutting Steel
Oxygen is an important element for improving the sulfide morphology in steels that require machinability. Therefore, 50 ppm oxygen was added to 1215MS free-cutting steel under industrial conditions; the effect...
-
Article
Formation Mechanism of Different Morphologies Inclusions in Tellurium-Containing Medium-Carbon-Microalloyed Steel
Tellurium (Te) modification is an important method to improve the morphology of sulfide (MnS) in steel, the morphology of MnS varies with the difference in Te content of Te-containing inclusions. To explore th...
-
Article
An Atomistic Structure of Cementite (M3C, M = Fe, Cr, Mn) in Carbon Steel
Scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) results for cementite in carbon steel suggest that the alloying elements containing Cr and Mn. In order to explore the influence of C...
-
Article
Mo–Ti–Zr Intermetallic Compound Inclusions in 18Ni Maraging Steel
The segregation of alloying elements and the large-size second-phase particles in steel are the main reasons of abnormal microstructure and microdefects. In this study, the large-sized Mo–Ti–Zr intermetallic c...
-
Article
Tellurium Do** in MnS Inclusions and Corresponding Modification Effect: Experimental and First-Principles Study
Te is sulfide inclusion morphology optimization element in steel, and Te do** in MnS inclusions is considered the main mechanism for modification, but the mechanism of Te do** behavior itself is not clear....
-
Chapter and Conference Paper
Design and Analysis of a New 6-DOF Deployable Parallel Manipulator with Scissor Legs
In this article, a new six degrees-of-freedom (DOF) deployable parallel manipulator (DPM) with three straight scissors legs is briefly described. The configuration design method of the DPM is proposed by means...
-
Article
Solid Phase Sintering and Densification Behaviors of MnS Inclusions in 416 Stainless Steel
MnS is an important strengthening phase for AISI 416 stainless steel with excellent processability, in order to explore the formation mechanism of long strip MnS inclusions. In this study, the solid phase diff...
-
Article
Formation Mechanism of Band Delta-Ferrite in 416 Stainless Steel and Its Relationship with MnS and M23C6
AISI 416 steel is a free-cutting stainless steel with a banded structure (BS) that is formed by element segregation, and its secondary phase particles significantly affect its microstructure and properties dur...
-
Article
Connectivity of the Julia sets of singularly perturbed rational maps
We consider a family of rational functions which is given by $$\begin{aligned} f_{\lambda }(z)=\frac{z^n(z^{2n}-\lambda ^{n+1})}{z^{2n...
-
Chapter and Conference Paper
Dependency of Microstructure and Inclusions on the Different Growth Rate for Directionally Solidified Non-quenched and Tempered Steel
Using a Bridgman furnace, the solidification experiments of a non-quenched and tempered were directionally conducted at a temperature ingredient with various growth rates (v = 10–300 μm/s). The values of the ...
-
Article
Single-crystalline self-branched anatase titania nanowires for dye-sensitized solar cells
The morphology of the anatase titania plays an important role in improving the photovoltaic performance in dye-sensitized solar cells. In this work, single-crystalline self-branched anatase TiO2 nanowires have be...
-
Chapter and Conference Paper
Formation and Control of CaS Inclusion in Gear Steel 20MnCr5
The modification of (CaO)m(Al2O3)n inclusion and the fact of CaS inclusion formation in gear steel 20MnCr5 after calcium treatment have been studied by thermodynamic equilibrium calculation. Based on the thermody...
-
Article
Optimal design of a 3-leg 6-DOF parallel manipulator for a specific workspace
Researchers seldom study optimum design of a six-degree-of-freedom(DOF) parallel manipulator with three legs based upon the given workspace. An optimal design method of a novel three-leg six-DOF parallel manip...
-
Chapter and Conference Paper
Study on Tensile Behaviors of Al-Killed Steel Under Batch-Annealed and Continuous-Annealed Conditions
The annealing procedure is crucial to promote the quality of Al-killed steels, which are widely used in the automotive industry. The continuous annealing (CA) has a potential to replace the batch annealing (BA...
