A5100415512- Advanced materials and composites
- Titanium Alloys Microstructure and Properties
- Metal Alloys Wear and Properties
- Microstructure and Mechanical Properties of Steels
- Powder Metallurgy Techniques and Materials
- Nuclear Materials and Properties
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced Materials Characterization Techniques
- Surface Treatment and Residual Stress
- Intermetallics and Advanced Alloy Properties
- Advanced Surface Polishing Techniques
- Metallurgy and Material Forming
- Force Microscopy Techniques and Applications
Xi'an Aeronautical University
2019-2023
AVIC Optronics (China)
2022
Nanjing University of Aeronautics and Astronautics
2017
Sichuan University
2017
The low-cost Ti-1Al-8V-5Fe (Ti-185) alloy with a high strength is prepared by cold-compaction-and-sintering powder metallurgy process titanium hydride (TiH2) powders and FeV80 master powders. use of simple technique cheap alloying elements can lead to the cost reduction for alloys. thermal decomposition TiH2-1Al-8V-5Fe analyzed gravimetric analyses differential scanning calorimetry simultaneous analyzer. shrinkage behavior during sintering employed high-sensitivity dilatometer system....
The powder metallurgy high-strength Ti-1Al-8V-5Fe alloy (Ti-185 alloy) was investigated in this paper with different addition methods of alloying elements, Al, V, Fe pure elements (EP) or 1Al-8V-5Fe ternary master (MAP), based on TiH2 powders at the sintering temperature from 1150 to 1350°C. results indicate that Ti-185 MAP possesses higher relative sintered density, less oxygen content, and α-phase volume fraction versus EP alloy). No matter where is 1150, 1250, 1350°C, invariably has yield...
The sintering densification behaviors of Ti-1Al-8V-5Fe alloys by saturated titanium hydride (TiH2) and unsaturated (TiH1.5) powders are investigated. results show that the TiH2-185 specimens present better ability compared with TiH1.5–185 specimens, which displays more hydrogen has a stronger ability. TG-MS analysis suggests decompositions TiH2 TiH1.5 accompanied H2O releasing, releases than TiH1.5. twice phase transformations can be observed in DSC, contribute to releasing dislocations...
In this task, some mechanical properties and diffusion kinetics of boronized layers on X65Cr14 martensitic stainless steel were investigated. The boronization treatments carried out at 1123, 1173, 1223 1323 K with 2, 4, 6 8 hours using the packing process. characterized by optical microscopy, X-ray diffraction, micro-Vickers hardness tester. produced exhibited smooth regular morphology. thickness layer ranged from 9.1 to 98.3 μm different treatment time temperature. XRD analysis revealed...
The high‐strength of Ti‐1Al‐8V‐5Fe (Ti‐185) alloy is due to TiH 2 powders produced at different compaction pressures and compared with hydride–dehydride‐Ti powders. objective this work was investigate the microstructural evolution mechanical properties Ti‐185 under pressures. dehydrogenation characteristics ‐185 oxygen contents sintered samples were evaluated by thermogravimetric analysis mass spectrometer (TG‐MS) oxygen/nitrogen (O/N) analysers. corresponding change in analysed means...
The cost-efficient Ti-1Al-8V-5Fe-xSi (denoted Ti-185-xSi hereafter, x = 0, 0.15, 0.3, 0.45, 0.6, 0.75) alloys are synthesized by cold compaction and sintering powder metallurgy (PM) technology using TiH2 high-pure FeV80 powders. densification, microstructural evolutions mechanical behavior of sintered at 1350°C investigated. results show that the Si element is favorable to enhance density Ti-185 alloys, which should be limited ≤0.3%. amount average size precipitate Ti5Si3 increase in with...