논문 국내 국제전문학술지(SCI급) Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2008-02
- 저자명 김하영,박준식,김정민공동(참여),Yi S.,Perepezko J.H.
- 학술지명 METALS AND MATERIALS INTERNATIONAL
- 발행처명 METALS AND MATERIALS INTERNATIONAL
- 발행국가 국내
- 논문언어 한국어
홈페이지논문 초록 (Abstract)
Oxidation behavior of Si pack cementation coatings on a three-phase Mo−Si−B alloy was examined. During Si pack cementation of a three-phase Mo−Si−B alloy, a MoSi2 outer layer was synthesized on the exterior layer. Following oxidation in air of the pack-coated alloys at 1200°C, the MoSi2 phase layer was consumed and replaced by the Mo5Si3 (or T1) phase. The synthesized T1 phase provided excellent oxidation resistance when exposed to high temperatures. The silicide-coated alloys exhibit higher oxidation resistance compared with uncoated Mo−Si−B alloys. The enhanced oxidation behavior and its mechanism are discussed in terms of the thicknesses of the oxide layers under exposure to high temperatures.