20 Result(s)
within
Chapter
Ri**ang Zhu
Characterization and Evaluation of Materials
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Chapter and Conference Paper
The Process Parameters Extended Criterion for Laser Engineered Net Sha** of Inconel 738
processing has been an efficient technique for the rapidly manufacturing superalloy parts in recent years. While, for the high crack susceptibility superalloy such as Inconel 738 , the current flawless p...
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Chapter and Conference Paper
A Study on the Radial Difference of PLA Monofilament
PLA monofilament has great potential for resorbable applications. In this paper, a series of with different drawing temperature and drawing ratio were prepared through melt spinning. The and of the cross...
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Chapter and Conference Paper
Sub-rapid Solidification Study by Using Droplet Solidification Technique
is important with respect to the fundamental study of strip casting given the common conditions of direct contact between cooling mold and solidifying metal. In this study, an improved droplet solidificatio...
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Chapter and Conference Paper
The Microtexture and Tensile Properties of Continuous-Wave and Quasi-Continuous-Wave Laser Powder-Deposited Inconel 718
Inconel 718 has been widely used in the aerospace field. In this study, the effect of linear heat input and laser mode on the and of laser powder-deposited (LPD) Inconel 718 was studied. Continuous-wave ...
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Chapter and Conference Paper
Influencing Factors of Partial Discharge of Needle-Plate Based on Acoustic Emission Detection
Partial discharge (PD) is one of the main factors leading to the failure of power system insulation and malfunction. The study of discharge characteristics is helpful to fault prevention. A needle-plate partia...
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Chapter and Conference Paper
Study on the Semiconducting Grain and Insulating Barrier Layer in Aluminum/Niobium Co-doped CCTO
In this paper, aluminum/niobium co-doped calcium copper titanate ceramics were synthesized by a dry route based on the chemical formula of CaCu3Ti4−xAl0.5xNb0.5xO12 with x = 0.0, 0.2, 0.5, and 5.0%. The dielectri...
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Chapter and Conference Paper
The Mechanical Property and Crystalline Structure of Novel High-Strength Polyamide Fibers
A kind of novel high-strength 6/66 fibers prepared by an effective and simple approach is reported in this paper. Firstly, was obtained by polymerization of caprolactam and nylon 66 salt, and then fibe...
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Chapter and Conference Paper
Effect of Winding Speed on the Structure and Mechanical Properties of High-Strength Polyamide 6 Fibers
In order to illustrate the effect of melt-spinning on the high-strength fibers, the structural evolution and mechanical properties of PA6 fibers were investigated by differential scanning calorimetry (DSC)...
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Chapter and Conference Paper
Evolution of Al-Ti-Mg-O Inclusions During Refining and Casting Process of Interstitial Free Steel
The evolution of chemical composition, size, proportion, and morphology of the during the steelmaking process (IF) steel from the RH to the Continuous Casting (CC) slab were investigated by means of Auto-S...
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Chapter and Conference Paper
Effect of Hook Formation During Initial Solidification on Distribution of Subsurface Inclusions in Ultralow Carbon Steel Slabs
Entrapment of macro-inclusions under the shell surface would lead to the surface quality of final steel products, which is closely related to the formation of oscillation mark hooks during the initial shell so...
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Chapter
Influence of Process Parameters on Blistering during T6 Heat Treatment of Semi-Solid Castings
High pressures applied to the castings during solidification mean that semi-solid castings tend to be prone to surface blistering during subsequent T6 heat treatment. It is believed that the blistering origina...
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Chapter and Conference Paper
STM and ARPES Study of Ordered Ce Film and Its Initial Oxidation
Ordered Ce metal films were grown on a W (110) substrate by molecular beam epitaxy (MBE) method in ultra-high vacuum (UHV) and subsequent annealing. The interface and surface with different annealing temperatu...
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Chapter
Impact of Section Thickness on the Microstructure and Mechanical Properties of Semi-Solid Castings
Slower cooling and solidification rates tend to increase both the grain size and dendrite arm spacings (DAS) of conventional castings. Both grain size and DAS impact strength and ductility, and so heavy sectio...
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Chapter and Conference Paper
Modeling of Ferrite-Austenite Phase Transformation
A two-dimensional cellular automaton model is adopted to simulate the ferrite (α)-austenite (γ) transformation in low-carbon steels. The preferential nucleation sites of austenite, the driving force of phase t...
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Chapter and Conference Paper
Development of Processing Maps for Intercritical Annealing Using the Phase Field Approach
A phase field model has been developed to simulate microstructure evolution during intercritical annealing. The model describes ferrite recrystallization, intercritical austenite formation and decomposition. I...
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Chapter and Conference Paper
High Anisotropy and High Electrical Resistivity Nd-Fe-B/CaF2 Composite Magnets with Laminated Structures
High anisotropy and high electrical resistivity Nd-Fe-B/CaF2 composite permanent magnets have been fabricated by hot-pressing and hot-deformation techniques. The effect of CaF2 on the microstructures, electrical ...
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Chapter and Conference Paper
Investigation of Low Melting-Point Boundary Phase in Sintered (Ce,Nd)-Fe-B Magnets
A (Ce,Nd)-Fe boundary phase with low melting-point was obtained in the sintered Ce9Nd21FebalB1 magnets by the two powders blending method. Ce element enriched in the boundary phase and decreased the melting point...
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Chapter and Conference Paper
Magnetic microstructures of high performance permanent magnetic materials
Magnetic domains are strong correlated to the macro-magnetic properties of magnetic materials. Among the methods to revealing magnetic domains, magnetic force microscopy (MFM) is a powerful tool with high late...
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Chapter and Conference Paper
A Procedure for Testing the Radiometric Accuracy of Fourier-transform Infrared Spectrometers
We present a simple procedure for evaluation of FT-IR radiometric accuracy, which incorporates the use of calibrated standard reference materials. It starts with the standard practice for testing the FT-IR perfor...
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Chapter
Fracture Toughness of Hybrid Short Fiber Composite
Based on the hypotheses of mechanics behavior of a hybrid short fiber composite, the fracture toughness of the material is determined with linear elastic fracture mechanics. The experiments are conducted on co...
