Microstructure and High Temperature Oxidation Property of Fe-Cr-B Based Metal/Ceramic Composite Manufactured by Powder Injection Molding Process

다국어 초록 (Multilingual Abstract)

This study investigated the microstructure and high temperature oxidation property of Fe–Cr–B metal/ceramic compositemanufactured using powder injection molding process. Observations of initial microstructure showed a unique structurewhere α-Fe and (Cr, Fe)2B form a continuous three-dimensional network. High temperature oxidation tests were performedat 900, 1000 and 1100 °C, for 24 h, and the oxidation weight gain according to each temperature condition was 0.13, 0.84and 6.4 mg/cm2, respectively. The oxidation results according to time at 900 and 1000 °C conditions represented paraboliccurves, and at 1100 °C condition formed a rectilinear curve. Observation and phase analysis results of the oxides identifiedCr2O3and SiO2at 900 and 1000 °C. In addition to Cr2O3and SiO2,CrBO3and FeCr2O4formed due to phase decompositionof boride were identified at 1100 °C. Based on the findings above, this study suggested the high temperature oxidationmechanism of Fe–Cr–B metal/ceramic composite manufactured using powder injection molding, and the possibility of itsapplication as a high temperature component material was also discussed.

참고문헌 (Reference)

1 R. Yilmaz, 31 : 23-, 2008

2 Y. Shibuya, 64 : 1396-, 1978

3 O.Yu. Goncharov, 43 : 588-, 2007

4 V.K. Tolpygo, 14 : 5167-, 1998

5 J.E. Croll, 4 : 121-, 1972

6 K.-H.Z. Gahr, 31 : 587-, 1998

7 C. Guo, 39 : 1109-, 2004

8 X. Zheng, 48 : 527-, 1977

9 T.A. Bither, 8 : 109-, 1970

10 A. Rottger, 88 : 420-, 2015

11 S. Ma, 60 : 831-, 2012

12 T. Gun, 131 : 443-, 2017

13 K.I. Parashivamurthy, 36 : 4519-, 2001

14 S.K. Ahn, 193 : 162-, 2009

15 H.J. Sung, 130-131 : 321-, 2002

16 K. Lee, 428 : 124-, 2006

17 H.J. Kim, 5 : 63-, 1999

18 H.J. Kim, 249 : 846-, 2002

19 C.Y. Son, 40A : 1110-, 2009

20 A.A. Sorour, McGill University 2014

21 L. Yijian, 26 : 2833-, 1991

22 I. Goldfarb, 72 : 963-, 1995

23 김창규, "분말사출성형으로 제조된 비정질 및 반비정질 합금 제품의 미세조직과 기계적 성질" 대한금속·재료학회 45 (45): 80-89, 2007

24 이유환, "금속분말 사출성형법으로 제조된 스테인리스 316L 강의 소결조건에 따른 기계적 성질" 대한금속·재료학회 40 (40): 1249-1258, 2002

25 심민철, "Metal Injection Molding 공정으로 제조된 IN 713C 합금의 고온 기계적 특성" 대한금속·재료학회 52 (52): 327-334, 2014

26 김슬기, "Fe합금의 내 산화성과 황화성에 미치는 Al과 Cr 함량의 영향" 한국표면공학회 45 (45): 61-69, 2012

27 J.A. Kohn, "Boron Synthesis, Structure, and Properties, 1st edn." Springer 175-189, 1960