A5102780721- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Microstructure and mechanical properties
- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Additive Manufacturing Materials and Processes
- Advanced materials and composites
- Advanced ceramic materials synthesis
- High Temperature Alloys and Creep
- Advanced Materials Characterization Techniques
- nanoparticles nucleation surface interactions
- Intermetallics and Advanced Alloy Properties
- Metal and Thin Film Mechanics
- Microstructure and Mechanical Properties of Steels
- Metallurgy and Material Forming
- Nanowire Synthesis and Applications
- Industrial Gas Emission Control
- Corrosion Behavior and Inhibition
- Polymer Foaming and Composites
- Electrodeposition and Electroless Coatings
- Advancements in Solid Oxide Fuel Cells
- Quantum Dots Synthesis And Properties
- Fuel Cells and Related Materials
- Boron and Carbon Nanomaterials Research
- Chemical Looping and Thermochemical Processes
Taiyuan University of Technology
2023-2025
Shanghai Jiao Tong University
2010-2022
Collaborative Innovation Centre for Advanced Ship and Deep-Sea Exploration
2016
Metal Matrix Cast Composites (United States)
2012-2013
Nickel‐based superalloys with bimodal L1 2 precipitates have been widely used in extreme environments due to their excellent mechanical properties. However, limited studies focused on the deformation behavior and mechanisms under combined high strain rates temperatures. In this study, uniaxial compression experiments were conducted a typical strengthened nickel superalloy over wide range of temperatures (293–1273 K) (1 × 10 − 3 s 1 –5 ) reveal coupling effect temperature rate behavior. The...
To enhance the strength and toughness of metallic materials simultaneously over a wide range temperatures strain rates, eutectic high-entropy FCC/Laves composite with heterogeneous initial microstructure was fabricated by powder plasma arc additive manufacturing. The mechanical behavior rates tested aid an electronic universal testing machine improved Split Hopkinson pressure bar. possesses unique combination ductility selected temperature rate ranges due to in situ nature both soft FCC...
Abstract Nickel nanowires with large aspect ratio of up to 300 have been prepared by a hydrazine hydrate reduction method under applied magnetic field. The diameter nickel is about 200 nm and length 60 μm. role field on the growth discussed nanowire mechanism has proposed. ions are firstly reduced atoms hydrates in strong alkaline solution grow into tiny spherical nanoparticles. Then, these particles will align force form linear chains. Furthermore, as-formed chains can enhance local attract...
Atomic ordering in Al melts induced by liquid/substrate interface with Ti solute was investigated ab initio molecular dynamics simulations and in-situ synchrotron X-ray diffraction. It is predicted that deformed nanoscale layers a rhombohedral-centered hexagonal structure (R3¯m space group) instead of the intrinsic fcc (Fm3¯m form on substrate at temperature above liquids. With atoms stacking away from interface, reaches critical thickness, which inhibits consecutive substrates. The locally...
Nanocrystalline Sc2O3 (different doping content) stabilized ZrO2 (ScSZ) powders are prepared by the hydrothermal method. Dense ScSZ ceramic pellets fabricated isostatically pressing then sintering at 1350°C for 2 h. 8 mol% doped Zirconia possesses highest conductivity of all samples measured impedance spectroscopy. Different grain size 8ScSZ which observed scanning electron microscopy (SEM) with different temperature and hours. The correlation between electrical properties is analyzed...
A novel Ni-Co-Cr-based medium-entropy superalloy with a high Si content (7.5 at%) strengthened by an L12 phase was developed. The pure phase, characterized average size of 50 nm and volume fraction 46%, precipitated within the FCC matrix. This alloy exhibits excellent mechanical properties over wide range temperatures from 77 K to 1073 K. yield strength 1005 MPa, ultimate tensile 1620 elongation 36% were achieved at K, maximum value 4.8 GPa second stage work-hardening rate. maintains...
Effect of rare earth (RE) metals addition on the microstructure, formation Fe–Zn intermetallics and corrosion resistance batch galvanising Zn–0·18Al coating were studied. Microstructure was observed using optical microscopy, scanning electron microscopy transmission microscopy. Salt spray test surface potential measurement employed for determination. The results show that RE can improve bath liquidity, refine spangles, stabilise Fe 2 Al 5 inhibition layer, decrease thickness enhance coating....
Cu–8Fe–0.5Ag–0.02P (mass%) in situ composites were fabricated by inductive melting and then the as-casted sample drew heavily at room temperature to refine microstructure optimize mechanical electrical properties. The evolution of composite during drawing was investigated, while tensile strengths conductivity as-drawn samples measured. Comparing Cu–8Fe composite, strength enhanced largely adding trace Ag P. results show that refines primary Fe dendrites promotes precipitation secondary phase...
The roles of CeO 2 additive during preparation in situ TiB /Al composite, alleviating particle settlement composite melt and significantly improving dispersion final microstructure, are studied this paper. It is evidenced that the reacts with Al melts to release Ce solute into melts, released surface active absorbed Al/TiB interfaces without any other reaction products. First principles calculations show interfacial energy reduced owing presence area. Therefore, wettability molten on...
Dry sliding wear behaviour of gravity-cast and squeeze-cast Al 2014 alloys in-situ 5 vol% TiB2/2014 composites has been studied. Squeeze casting at different pressures performed on the alloy composite. Wear tests carried out loads 9.8–58.8 N a pin-on-disc machine show that both composite are more resistant than their samples. For alloys, sample solidified squeeze pressure 60 MPa shows least rate. However, in case composites, resistance 120 is best. The rates decrease with increasing...
Nickel nanowires with large aspect ratio of up to 300 have been prepared by a hydrazine hydrate reduction method under applied magnetic field. The diameter nickel is about 200 nm and length 60 μm. role field on the growth discussed nanowire mechanism has proposed. ions are firstly reduced atoms hydrates in strong alkaline solution grow into tiny spherical nanoparticles. Then, these particles will align force form linear chains. Furthermore, as-formed chains can enhance local attract other...
The tensile properties of complex shaped nickel based superalloy casting were investigated at elevated temperature. Specimens prepared from investment with/without hot isostatic pressing (HIP) treatment. Grain size and microstructure specimen are examined through optical microscopy, scanning electron transmission microscopy X-ray diffraction. results show that the change remarkably, although specimens cut same casting; ultimate strength elongation in semilogarithmic scale have obvious linear...