논문 해외 국제전문학술지(SCI급) Ablation stability of in situ Al2O3 layer in aluminized AISI 4130 steels under high-temperature plasma flame environments
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2021-10
- 저자명 정중희, WC Yang, S Lee, R Sakidja, JS Park
- 학술지명 Journal of Materials Engineering and Performance
- 발행처명 Springer US
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
홈페이지논문 초록 (Abstract)
The degradation and stability behavior of AISI 4130 steels have been examined under high-temperature dynamic plasma flame environments. A Fe2Al5 layer was formed as a result of aluminizing on the steel. An Al2O3 layer was produced on top of the Fe2Al5 layer, when the coated steel was oxidized at 500 °C (pre-oxidation treatment). The uncoated steels and the Fe2Al5 coated steels (i.e., the aluminized steels) showed large weight loss and complete changes in their original shapes due to their melting during the plasma flame tests at 1480 °C. However, the steels with the Al2O3 and Fe2Al5 (pre-oxidation treatment) were very stable without showing noticeable weight loss even after exposures to the plasma flame tests mainly due to the presence of the Al2O3 layer. SEM and XPS analyses were used to provide the presence of Fe2Al5 and Al2O3 phases on the surface. The effects of synthesized surface layers of …