21 Result(s)
within
**guang Chen
English
Characterization and Evaluation of Materials
Tribology, Corrosion and Coatings
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Article
Finite Element Analysis of War** and Mechanical Properties of 3D Parts Printed by Fused Deposition Modeling
Fused deposition modeling (FDM) is one of the most commonly used 3D printing techniques. The printing parameter, called infill line directions (ILDs), not only affects the distortion, but also determines the m...
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Article
High-Performance Ti-6554 Alloy Manufactured Using Irregular Powder via Vacuum Pressureless Sintering Followed by Forging
Ti-6554 (Ti-6Cr-5Mo-5V-4Al) alloy has attractive potential as a new structural material in the aviation field due to its excellent mechanical properties. However, it is expensive to manufacture, which can limi...
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Article
Corrosion behavior of single- and poly-crystalline dual-phase TiAl-Ti3Al alloy in NaCl solution
To clarify the correlation of single-crystalline structure with corrosion performance in high-strength TiAl alloys, electrochemical and surface characterization was performed by comparing Ti-45Al-8Nb dual-phas...
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Article
Hot Deformation Behavior of ATI 718Plus Alloy with Different Microstructures
In this work, the effect of microstructure on hot deformation behavior of ATI 718Plus (hereinafter refers to 718Plus) alloy was studied by isothermal compression test. The results showed that when the strain r...
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Article
Effect of Tool-Workpiece Relative Position on Microstructure and Mechanical Properties of Al-Cu Dissimilar Friction Stir Weld
The effects of tool-workpiece relative positions on the microstructures and mechanical properties of 1-mm-thick 6061-T6 aluminum to T2 copper friction stir welds are systematically investigated in this researc...
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Article
Microstructure Evolution of Primary γ′ Phase in Ni3Al-Based Superalloy
In this work, water cooling, air cooling (AC) and furnace cooling (FC) were applied to investigate the effect of cooling rate on microstructure evolution of primary γ′ in a newly designed Ni3Al-based alloy. The r...
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Article
Interfacial Feature and Mechanical Property of Friction Stir Lap Repair Welded 7B04 Aluminum Alloy
Friction stir repair welding of the lap structure of 2-mm-thick 7B04-T74 aluminum alloy is investigated in this study. A groove on the bottom plate surface was used to simulate the defect formed by the lap str...
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Article
Tungsten nanoparticle-strengthened copper composite prepared by a sol-gel method and in-situ reaction
Tungsten nanoparticle-strengthened Cu composites were prepared from nanopowder synthesized by a sol-gel method and in-situ hydrogen reduction. The tungsten particles in the Cu matrix were well-dispersed with an a...
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Article
Characterization and Integrated Fabrication of Al Components with Thick TiCp/Al Composite Coatings via Self-Propagating Reaction
A novel and quick process combining self-propagating reaction with vacuum-expendable pattern casting is presented to accomplish integrated preparation of millimeter-thick TiCp/Al composite coatings on the Al subs...
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Article
Rapid Ultrasonic-Assisted Soldering of AZ31B Mg Alloy/6061 Al Alloy with Low-Melting-Point Sn–xZn Solders Without Flux in Air
A novel ultrasonic-assisted low-temperature soldering was developed to join AZ31B Mg alloy and 6061 Al alloy with a series of Sn–xZn solders. The average maximum shear strength of the joints reaches up to 87.5 MP...
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Article
The Improved Thermal Conductivity of a Potting Material for High-Power Fast Warm-Up Cathodes
With higher power, frequency and longer life of microwave tubes, cathode heater assembly is being modified to enhance the warm-up performance and reliability, which are governed by ceramics thermal conductivit...
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Article
Annealing Effects on Microstructure and Mechanical Properties of Ultrafine-Grained Al Composites Reinforced with Nano-Al2O3 by Rotary Swaging
Microstructure evolution and variations in mechanical properties of Al-Al2O3 nanocomposite produced by powder metallurgy were investigated and compared with commercially pure aluminum (Al-1050) after furnace anne...
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Article
Experiment and Simulation for Rolling of Diamond–Cu Composites
We demonstrate an innovative preparation approach of diamond/Cu composites by powder-in-tube technique and rolling. A small copper tube was loaded with Ti- and Cu-coated diamond particles, and then the diamond...
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Article
Influence of nano-Al2O3-reinforced oxide-dispersion-strengthened Cu on the mechanical and tribological properties of Cu-based composites
The mechanical and tribological properties of Cu-based powder metallurgy (P/M) friction composites containing 10wt%–50wt% oxide-dispersion-strengthened (ODS) Cu reinforced with nano-Al2O3 were investigated. Addit...
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Article
Corrosion Behavior of Fe–Al Coatings Fabricated by Pack Aluminizing Method
In this study, the two kinds of Fe–Al coatings were fabricated by pack aluminizing on low-carbon steel at different temperatures. The corrosion behavior of the Fe–Al coatings in artificial seawater was investi...
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Article
Electronic and Magnetic Properties Modulated by Adsorption of 3d Transition Metal Atoms in Monolayer and Bilayer MoS2 Sheets
The adsorption effects of 3d transitional metal (TM) adatoms on electronic and magnetic properties of monolayer and bilayer MoS2 sheets have been investigated by using first-principle calculations based on the de...
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Article
Electrochemical Impedance Studies on Tribocorrosion Behavior of Plasma-Sprayed Al2O3 Coatings
In this paper, the tribocorrosion of plasma-sprayed Al2O3 coatings in simulated seawater was investigated by electrochemical impedance spectroscopy (EIS) technique, complemented by scanning electron microscopy to...
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Article
Effects of Plasma-spraying Powers on Microstructure and Microhardness of In-Situ Nanostructured FeAl2O4 Composite Coatings
In-situ nanostructured FeAl2O4 composite coatings were prepared using plasma spraying of Al/Fe2O3 composite powders applying different spraying powers. The effects of plasma-spraying powers on microstructure and...
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Article
Magnetoresistive sensors with hybrid Co/insulator/ZnO:Co junctions
Magnetic tunnel junctions (MTJs), as the seminal spintronic devices, are expected for applications in magnetoresistive sensors due to their large magnetoresistance (MR) and high field sensitivity. Two hybrid C...
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Article
Microstructure Characterization of the FeAl2O4-Based Nanostructured Composite Coating Synthesized by Plasma Spraying Fe2O3/Al Powders
The microstructure of the coating prepared by reactive plasma spraying Fe2O3/Al composite powders was characterized by x-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The re...
