| 학회 | 한국재료학회 |
| 학술대회 | 2009년 봄 (05/21 ~ 05/22, 무주리조트) |
| 권호 | 15권 1호 |
| 발표분야 | 구조재료 |
| 제목 | High-temperature Oxidation of oxynitrided Ti alloys in air. |
| 초록 | Fretting wear behavior of titanium and titanium alloys can be improved by using diffusion gas treatments to form the Ti-O-N coatings, owing to the high reactivity of titanium with respect of nitrogen or oxygen. The present paper reports the effects of oxynitriding treatments, performed using air as treatment atmosphere, on the microstructure and mechanical properties of Ti6Al4V alloy samples. The oxynitrided scale formed at 973 K for 10 hours was composed of an outer compound layer, the coating nitrogenated layer, and an inner diffusion layer. The surface microhardness of the oxynitrided titanium alloys increased due to the strengthening effect of the titanium oxynitrides (TiOxNy). The oxide scales were characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD), electron probe microanalysis (EPMA), and transmission electron microscope (TEM). This work was supported by the Korea-Ukraine Joint Research Program through KICOS, Korea. |
| 저자 | ChenLi1, Sang-Hwan Bak2, Dong-Bok Lee3 |
| 소속 | 1School of Advanced Materials Science & Engineering, 2Sungkyunkwan Univ., 3Korea |
| 키워드 | Ti-O-N coating; Oxynitrided Ti alloys; Ti6Al4V alloy |
