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| Content Provider | IET Digital Library |
|---|---|
| Author | Jiang, Qiuyue Tian, Ye Shu, Fengyuan Zhao, Hongyun Sun, Yiming He, Wenxiong Xu, Binshi |
| Abstract | Cobalt (Co)-based tungsten carbide (WC) wear-resistant coatings with different content of WC were prepared on the surface of Q235 low carbon steel by plasma-transferred arc welding. The properties of the coatings such as strengthening mechanism, microhardness and wear properties were tested by using a metallurgical microscope, scanning electron microscope, energy dispersive spectrometer, X-ray diffraction, Rockwell hardness tester, and friction wear equipment. The results show that the main reasons for the strengthening of spray welding layer are the solution strengthening formed by α-Co with supersaturated tungsten (W) and the dispersion strengthening caused by eutectic precipitated carbide and silicide. The proportion of the solid solution of W in α-Co steadily ranges from 18.00 to 19.59%. The morphologies of rich W-phase are mainly related to the content of W. With the content of W increasing, the evolution process of the shape is the amorphous form→damascene shape→star-like shape→the polygon. Amorphous W-rich phase can be obtained when the content of WC ranges from 20 to 30%, evenly distributed W-rich phase in the shape of damascene or star can be obtained when the WC content ranges from 30 to 40%, and the polygonal W-rich phase can be obtained at the percentage of 40–50%. |
| Starting Page | 717 |
| Ending Page | 720 |
| Page Count | 4 |
| Volume Number | 14 |
| e-ISSN | 17500443 |
| Issue Number | Issue 7, Jun (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/14/7 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2018.5545 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2019-06-26 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Amorphous Form Amorphous W-rich Phase Arc Welding Brittleness Co-WC Co-WC Composite Coatings Cobalt Cobalt-based Tungsten Carbide Wear-resistant Coatings Composite Material Cracks Damascene Shape Dispersion Hardening Dispersion Strengthening Electromagnetic Radiation Spectrometry (chemical Analysis) Embrittlement Energy Dispersive Spectrometer Engineering Material Epitaxy Eutectic Precipitated Carbide Fatigue Fracture Fracture Mechanics And Hardness Friction Friction Wear Equipment Hardness Testing Joining Processes And Welding Lubrication Material Testing Mechanical And Acoustical Property of Solid SurFace And InterFace Mechanical Engineering Metallurgical Microscopy Metallurgy Microhardness Micromechanics Physical Property of Thin Film Plasma Application in Manufacturing And Material Processing Plasma Arc Sprayed Coatings Plasma-transferred Arc Welding Polygonal W-rich Phase Precipitation Q235 Low Carbon Steel Rockwell Hardness Tester Scanning Electron Microscopy Semiconductor Technology Silicide Solid Solution Solid Solution Hardening Solid Solution Hardening, Precipitation Hardening, Dispersion Hardening Solid Solutions Solution Strengthening Spray Coating Technique Spray Welding Layer Star-like Shape Strengthening Mechanism Structure Supersaturated Tungsten Surface Treatment Testing Thin Film Growth Tribology Tungsten Compound WC Content Ranges Wear Wear Property Wear Resistance Wear Resistant Coatings X-Ray Chemical Analysis X-Ray Diffraction |
| Content Type | Text |
| Resource Type | Article |
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