A5008695150- Intermetallics and Advanced Alloy Properties
- MXene and MAX Phase Materials
- Titanium Alloys Microstructure and Properties
- Advanced Welding Techniques Analysis
- Metallurgy and Material Forming
- Aluminum Alloys Composites Properties
- Advanced ceramic materials synthesis
- High-Velocity Impact and Material Behavior
- Semiconductor materials and interfaces
- Aluminum Alloy Microstructure Properties
- Energetic Materials and Combustion
- Dye analysis and toxicity
- Microstructure and Mechanical Properties of Steels
- Metallurgical and Alloy Processes
- Advanced materials and composites
- Magnetic Properties and Applications
- Microstructure and mechanical properties
- Metal Forming Simulation Techniques
- Metal Alloys Wear and Properties
- Metal and Thin Film Mechanics
- nanoparticles nucleation surface interactions
- Boron and Carbon Nanomaterials Research
- Heavy metals in environment
- High Temperature Alloys and Creep
- Chromium effects and bioremediation
Xi'an University of Technology
2022-2024
Northwestern Polytechnical University
2016-2023
Henan Polytechnic University
2023
China National Center for Food Safety Risk Assessment
2022
Xi’an University
2022
State Key Laboratory of Solidification Processing
2017
University of Science and Technology Beijing
2012
Yanshan University
2010
Ti-44.5Al-3.8Nb-1Mo-0.2B alloy (TNM) sheets were prepared by hot rolling, and the effect of initial microstructure on process was discussed in this work. The as-received TNM billets with nearly fully lamellar structures forging casting processes (named M1 M2), respectively. For as-rolled from M1, fraction recrystallization increased gradually decrease reduction per pass based GOS analysis. Compared M2 required a larger deformation to achieve complete recrystallization. Meanwhile, possessed...
The microstructural evolution and creep behavior of the Ti-43.5Al–4Nb–1Mo-0.1B alloy have been investigated by scanning electron microscope (SEM) transmission (TEM). excellent property was obtained with a fully lamellar (FL) microstructure containing least grain boundary βo phase (GB-βo). TEM results revealed that after testing α2 →βo transformation observed in FL microstructure. formation is associated accumulation Mo element, which confirmed energy-dispersive X-ray spectroscopy (EDS)....
The dynamic recrystallization (DRX) and phase transformation (PT) behavior of a wrought β-γ TiAl alloy during hot compression under various deformation temperatures were investigated. typical work hardening flow softening features indicated that DRX was the dominating mechanism. Both γ-DRX β-DRX took place compression. triggered at all temperatures, while induced when temperature above 1000 °C. kinetics calculated, which showed existed in whole process, volume fraction increased with...
Dissimilar TiAl-based alloys weld by solid-state bonding, also known as diffusion bonding (DB), usually show brittle intermetallic compounds, high interfacial stress, and poor properties. A novel post-bonded process strategy, slight deformation in the direction of stress parallel to interface, was developed treatment TiAl/Ti2AlNb joint. The effect processes on microstructure, element diffusion, fracture characteristics mechanical properties were systematically investigated. results showed...
The metadynamic recrystallization (MDRX) of β-solidified TiAl alloy and its effects on microstructural homogeneity were investigated in the present work. Based comprehensive microstructure characterizations terms scanning electron microscope back-scattered (BSE) mode back scattered diffraction (EBSD) technique, it is found that occurrence MDRX during post-annealing process after hot compression leads to decomposition lamellar colonies, grain equalization reduction geometrically necessary...
In order to verify the correctness of transition deformation mechanism with change in parameters and reveal types dynamic recrystallization γ grains during compression deformation, microstructure characterization Ti-43.5Al-8Nb-0.2W-0.2B (at. %) alloy after isothermal were performed. When was deformed at 1000 °C/10−2 s−1, initial are elongated significantly refined fraction low angle grain boundaries (LAGB) is obviously increased texture intensity remains unchanged, which indicates that...
The solid-state diffusion bonding experiments of the high Nb containing TiAl alloy were successfully carried out at 1100℃ under a uniaxial pressure 30MPa for 45min, and microstructure as well shear strength interface with different surface roughness investigated.The was measured by AFM, characterization interfaces taken SEM, EDS, AES.In addition, bond qualities evaluated testing room temperature.The results indicated that is importance to improve quality joint.Moreover， white layer found in...
A novel process was developed to make micro-fine spherical high Nb containing TiAl alloyed powders in quantity. Ti-45Al-8.5Nb-0.2W-0.2B-0.02Y(at%) ingot prepared by vacuum induction melting heat-treated for homogenization, and then machined with a crusher. The chippings were refined fluidized bed jet milling, subsequently spheroidized radio frequency (RF) argon plasma. effects of processing parameters on powder characteristics studied. By the particle size distribution uniformity both...
Herein, the isothermal and continuous cooling transformation mechanisms of prior austenite its relationship to fracture behavior high‐strength medium‐Mn steel are studied. Furthermore, precipitation cementite is also analyzed. The results indicate that short rod‐like forms in martensite matrix during air‐cooling process, solubility difference supersaturated elements provides a driving force for element diffusion. Accordingly, it proved no occurs 360 °C × 7 days treatment. lath‐like...
Dissimilar TiAl-based alloys weld by solid-state bonding, also known as diffusion bonding (DB), usually show brittle intermetallic compounds, high interfacial stress, and poor properties. A novel post-bonded process strategy, slight deformation in the direction of stress parallel to interface, was developed treatment TiAl/Ti2AlNb joint. The effect processes on microstructure, element diffusion, fracture characteristics mechanical properties were systematically investigated. results showed...