Analysis of Laser Surface Hardening of GM246 Cast Iron
| Autor: | Hui Zhen Wang, Gang Yang, Yue Wen Zhai, Chao Min Gong, Zi Bo Zhang, Le Yu Zhou |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Laser Microstructure 01 natural sciences law.invention Mechanics of Materials law 0103 physical sciences engineering General Materials Science Cast iron 0210 nano-technology Case hardening |
| Zdroj: | Materials Science Forum. 1035:596-601 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.1035.596 |
| Popis: | Laser surface modification technology is one of the most advanced technologies, which uses laser to modify the characteristics of the surface to offer superior performance for various industrial applications. In this study, laser surface hardening behavior of GM246 case iron was investigated. Result shows that excellent laser surface hardening of GM246 cast iron need low power density and scanning speed. With power of 2500 W, scanning speed of 300 mm/min and power density of 2500 W/cm2, the laser surface hardening of GM246 cast iron achieved the hardness of 790HV, which was 2-3 times higher than the hardness of base metal. Also, the depth of laser surface hardening case achieved 0.9 mm and the hardening case demonstrated three subzones. |
| Databáze: | OpenAIRE |
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