| 학회 | 한국재료학회 |
| 학술대회 | 2011년 가을 (10/27 ~ 10/29, 신라대학교) |
| 권호 | 17권 2호 |
| 발표분야 | E. Structural Materials and Processing Technology(구조재료 및 공정기술) |
| 제목 | Study on Tribological Properties of Cast Steel by Laser Surface Texturing |
| 초록 | Tribological properties of the applications are most important for saving energy or increasing serviceability in automotive industry. It is known that tribological behavior is strongly related to the topography between each surface. Recently, Laser surface texturing of tribological applications is one of most important candidate for saving energy technology. In this research, Yb fiber laser (λ=1064nm) was used to generate different structures on Cast Steel surface. Microchannels and microdimpes were generated on the flat surface by a laser ablation process. Textural features such as size, density of microchannels, dimples and orientation could be modified easily changing the laser parameters due to the flexibility of the laser system. The effect of different topographies on tribological behavior was examined by using ball-plate tribometer. Laser textured Cast Steel surfaces mated to SAE52100 balls showed that a reduction of friction could be achieved in comparison to the polished surfaces. |
| 저자 | Hyun Hwi Lee1, Sang Hoon Lee2, Bhupendra Joshi3, Seung-Ho Kim4, Soo Wohn Lee2 |
| 소속 | 1Department of Metallurgy and Materials Engineering, 2SunMoon Univ., 3Korea, 4Department of Advanced Materials Engineering |
| 키워드 | Tribology; Surface modification; Laser texturing; Lubrication |
