방전플라즈마 소결법에 의해 제조된 Fe-Ni 합금의 미세조직 및 고온산화특성
Microstructure and High Temperature Oxidation Behaviors of Fe-Ni Alloys by Spark Plasma Sintering
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this study, we report the microstructure and the high-temperature oxidation behavior of Fe-Ni alloys by spark plasma sintering. Structural characterization is performed by scanning electron microscopy and X-ray diffraction. The oxidation behavior of Fe-Ni alloys is studied by means of a high-temperature oxidation test at 1000oC in air. The effect of Ni content of Fe-Ni alloys on the microstructure and on the oxidation characteristics is investigated in detail. In the case of Fe-2Ni and Fe-5Ni alloys, the microstructure is a ferrite (α) phase with body centered cubic (BCC) structure, and the microstructure of Fe-10Ni and Fe-20Ni alloys is considered to be a massive martensite (α’) phase with the same BCC structure as that of the ferrite phase. As the Ni content increases, the micro-Vickers hardness of the alloys also increases. It can also be seen that the oxidation resistance is improved by decreasing the thickness of the oxide film.
Abstract
In this study, we report the microstructure and the high-temperature oxidation behavior of Fe-Ni alloys by spark plasma sintering. Structural characterization is performed by scanning electron microscopy and X-ray diffraction. The oxidation behavior of Fe-Ni alloys is studied by means of a high-temperature oxidation test at 1000oC in air. The effect of Ni content of Fe-Ni alloys on the microstructure and on the oxidation characteristics is investigated in detail. In the case of Fe-2Ni and Fe-5Ni alloys, the microstructure is a ferrite (α) phase with body centered cubic (BCC) structure, and the microstructure of Fe-10Ni and Fe-20Ni alloys is considered to be a massive martensite (α’) phase with the same BCC structure as that of the ferrite phase. As the Ni content increases, the micro-Vickers hardness of the alloys also increases. It can also be seen that the oxidation resistance is improved by decreasing the thickness of the oxide film.
참고문헌 (17)
- G. L. Wulf, , Corros. Sci., 9, pp.689~ (1969)
- A. D. Romig, Jr., , Metall. Trans. A, 11, pp.1151~ (1980)
- A. D. Romig, Jr., , Metall. Trans. A, 12, pp.243~ (1981)
- A. Zambon, , Mater. Sci. Eng. A, 226, pp.119~ (1997)
- K. Eckler, , Mater. Sci. Eng. A, 226, pp.410~ (1997)
- A. Zambon, , Acta. Mater., 46, pp.4657~ (1998)
- K. Rajanna, , Mater. Sci. Eng. B, 77, pp.288~ (2000)
- M. Kouncheva, , Surf. Coat. Tech., 31, pp.137~ (1987)
- 김기현, "사출성형 된 Fe-50%Ni 소결체의 제조", 한국분말야금학회지, 11(6), pp.472~476 (2004), 한국분말야금학회
- I. Todd, "Advances in Powder Metallurgy", pp.109~ (2013), Woodhead Publishing
- H. Ye, , Mater. Lett., 62, pp.3334~ (2008)
- M. Rafi Raza, , J. Mater. Process. Tech., 212, pp.164~ (2012)
- A. Azizi, , J. Alloy. Compd., 485, pp.484~ (2009)
- 孫根洙, "미량 Ni 첨가 Fe-Ni 합금의 고온산화 거동에 관한 연구", 대한금속·재료학회지, 40(10), pp.1083~1090 (2002), 대한금속·재료학회
- 오재성, "정전 분무 공정으로 제조된 Fe-Cr-Al 분말 다공체 금속의고온 산화 특성에 미치는 기공 크기의 영향", 한국분말야금학회지, 21(1), pp.55~61 (2014), 한국분말야금학회
- Thuan Dinh Nguyen, "STS 304 스테인리스강의 대기중 1050~1200˚C, 1시간 동안의 산화", 대한금속·재료학회지, 47(4), pp.235~241 (2009), 대한금속·재료학회
- G. C. Wood, , Corros. Sci., 2, pp.173~ (1965)