| 학회 |
한국재료학회 |
| 학술대회 |
2013년 가을 (11/06 ~ 11/08, 제주롯데호텔) |
| 권호 |
19권 2호 |
| 발표분야 |
E. 구조 재료(Structural Materials) |
| 제목 |
Oxidation and coating kinetics of Al pack cementation-coated 4130 steel |
| 초록 |
Aluminum was deposited on the surface of the 4130 steel by pack cementation process to improve its hot-corrosion and high-temperature oxidation resistance. The coating layer was examined by carrying out scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS) and x-ray diffraction (XRD). The XRD investigation of the coatings showed that the aluminized coating consisted of Fe2Al5 phase. The coated specimens were oxidized at 500, 600 and 700 °C in static air. Fe2Al5 layer underwent the oxidation to form the FeAlO3 scale in the oxidation stage. The oxidation kinetics followed a parabolic rate law at all temperatures. Flame test was also conducted for the uncoated, coated and oxidized specimens at high temperature at 14650 C. The oxidized 4130-steel specimen with stand for high temperature, the thermal stability of the coating layer over the temperature range up to 7000C was discussed. |
| 저자 |
R R Gowkanapalli1, 박진수1, 박도훈1, 김정민1, 박준식1, 손영일2
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| 소속 |
1한밭대, 2국방과학(연) |
| 키워드 |
4130 steel; pack cementation; oxidation and flame test
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| E-Mail |
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