Microstructure and Wear Resistance of Laser Cladding of Fe-Based Alloy Coatings in Different Areas of Cladding Layer
| Autor: | Liu Yingliang, Chunjiang Zhao, Changyao Ouyang, Binhui Han, Qiaofeng Bai |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Cladding (metalworking)
Technology Materials science Scanning electron microscope microstructure Alloy 02 engineering and technology engineering.material wear resistance 01 natural sciences Indentation hardness Article Phase (matter) 0103 physical sciences Fe-based alloy coating General Materials Science Composite material 010302 applied physics Microscopy QC120-168.85 QH201-278.5 Abrasive Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology Microstructure hardness TK1-9971 Descriptive and experimental mechanics laser cladding engineering Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology human activities Layer (electronics) |
| Zdroj: | Materials, Vol 14, Iss 2839, p 2839 (2021) Materials Volume 14 Issue 11 |
| ISSN: | 1996-1944 |
| Popis: | In this study, laser cladding technology was used to prepare Fe-based alloy coating on a 27SiMn hydraulic support, and a turning treatment was used to obtain samples of the upper and middle regions of the cladding layer. The influence of microstructure, phase composition, hardness, and wear resistance in different areas of the cladding layer was studied through scanning electron microscopy (SEM), X-ray diffractometry (XRD), friction and wear tests, and microhardness. The results show that the bcc phase content in the upper region of the cladding layer is less than that in the middle region of the cladding layer, and the upper region of the cladding layer contains more metal compounds. The hardness of the middle region of the cladding layer is higher than that of the upper region of the cladding layer. At the same time, the main wear mechanism of the upper region of the cladding layer is adhesive wear and abrasive wear. The wear mechanism of the middle region of the cladding layer is mainly abrasive wear, with better wear resistance than the upper region of the cladding layer. |
| Databáze: | OpenAIRE |
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