Dongbo Wei
Nanjing University of Aeronautics and Astronautics
Composite materialTribologyMetallurgyMaterials scienceCorrosionScanning electron microscopeLayer (electronics)OxideAlloyCoatingGlow plasmaSubstrate (electronics)Chemical engineeringElastic modulusNanoindentationTitaniumMetalDiffusion layerDiffusionPlasmaMicrostructureTitanium alloy
66Publications
15H-index
604Citations
Publications 66
Newest
Titanium and titanium alloys have been extensively utilized in biomedical implants due to their excellent comprehensive mechanical properties and biocompatibility. In this study, a ZrN/Ag2O micro–nano gradient composite structure was prepared on the surface of pure Ti by multi-arc ion plating (MAIP) technique and metal vapor vacuum arc (MEVVA) ion implantation technology. This study indicated that a dramatic improvement in performance in the surface hardness (~1800 HV0.1) was attributed to the p...
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#1Dongbo Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 15
#2Fengkun Li (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
Last. Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
view all 6 authors...
In this study, surface Cr-Nb alloying was realized on γ-TiAl using double glow plasma hollow cathode discharge technique. An inter-diffusion layer was generated under the surface, composed of Cr2Nb...
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#1Fengkun Li (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
#2Dongbo Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 15
Last. Kai Yang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 1
view all 7 authors...
Herein, NiCr was coated on γ-TiAl via the hollow cathode glow discharge, whereas yttria stabilized zirconia (YSZ) was coated on the NiCr by multi-arc ion plating. A strong bonding between the two coatings and substrate, i.e., NiCr, YSZ, and γ-TiAl occurred. However, the surface of YSZ coating displayed macroparticles of different sizes, which affected the oxidation resistance. High-temperature oxidation behavior of YSZ/NiCr coating was investigated at 850, 950, and 1050 °C. The results showed th...
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#1Xiaohu Chen (ZJU: Zhejiang University)
#2Feng Ding (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
Last. Guoping Ling (ZJU: Zhejiang University)
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The double glow plasma surface alloying process (DGP) is an emerging alternative technology for fabricating thermal barrier coating. In spite of its merits such as gradient metallurgical bond and t...
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#1Xinbin Zhu (NUAA: Nanjing University of Aeronautics and Astronautics)
#2Bo Dang (NUAA: Nanjing University of Aeronautics and Astronautics)
Last. Shuqin Li (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
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#1Dongbo Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 15
#2M.-F. Li (NUAA: Nanjing University of Aeronautics and Astronautics)
Last. Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
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The NiCr/YSZ coating was fabricated on γ-TiAl alloy by double glow plasma surface metallurgy technology and multi-arc ion plating technology. The microstructure, microhardness, bonding strength, and burn resistance of NiCr/YSZ coating were studied in detail. The results showed that the NiCr/YSZ coating was dense and homogeneous, including a duplex structure of top YSZ ceramic coating and underlying Ni-Cr bond coating. The average microhardness of NiCr/YSZ coating was raised by a factor of about ...
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#1Dongbo Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 15
#2Xiaoyong Zhou (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 24
Last. Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
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#1Feng Ding (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Xiaohu Chen (UNNC: The University of Nottingham Ningbo China)
Last. Kai Yang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 1
view all 7 authors...
The effect of water-based aluminum phosphate (WAP) coating on the fatigue performance of 300 M steel with coating of primer and finishing layers was studied in the manuscript. The S-N curves showed that the WAP coating could improve the fatigue performance of the 300 M steel. The hydrogen embrittlement test showed that the WAP coating had no effect on the hydrogen embrittlement of the substrate and the uncoated specimens were very sensitive to air corrosion. The results of SEM, XRD, TEM, and nan...
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#1Feng Ding (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Xiaohu ChenH-Index: 9
Last. Kai Yang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 1
view all 7 authors...
Abstract The polar functional groups on the graphene surface were grafted via atmospheric plasma glow treatment to improve the dispersion of graphene in water, and the modified graphene was added to the WAP Coating. The corrosion resistance of the coating before and after the addition of modified graphene was investigated by electrochemical impedance and polarization test. The results showed that the treated graphene was easily dispersed in water and had a positive effect on the corrosion resist...
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#2Tian TianH-Index: 1
Last. Pingze ZhangH-Index: 18
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In this study, a multilayered hard coating with a tungsten matrix and a transition layer was deposited on pure copper by double glow plasma surface alloying technology, which aimed to provide the coating superior binding force and favorable matching of mechanical properties. The micro-hardness tester was adopted to measure the surface and cross-sectional hardness of the coatings. The nanoindentation test was used to measure the elasticity modulus of the coatings. Sliding wear tests under differe...
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