Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Oxidation on Hot Ductility Behavior of Plain Carbon Steel

탄소강의 열간연성 거동에 미치는 산화의 영향

  • Park, Tae Eun (Dept. of Materials Science and Engineering, Dong-A University) ;
  • Lee, Un Hae (Dept. of Materials Science and Engineering, Dong-A University) ;
  • Sohn, Kwang Suk (Dept. of Materials Science and Engineering, Dong-A University) ;
  • Lee, Sung Keun (Dept. of Materials Science and Engineering, Dong-A University) ;
  • Kim, In Soo (Dept. of Materials Science and Engineering, Dong-A University) ;
  • Yim, Chang Hee (Research Laboratory, POSCO) ;
  • Kim, Donggyu (Dept. of Materials Science and Engineering, Dong-A University)
  • Received : 2010.01.27
  • Published : 2010.05.22
⟨ Previous Next ⟩

Abstract

The effects of oxidation behavior on the hot ductility of plain carbon steels were investigated at various temperatures in order to simulate the continuous casting process more precisely, in which the process undergoes in air atmosphere rather than Ar atmosphere. The high temperature oxidation behavior and scale morphology of the carbon steels exposed to the air and Ar atmosphere at various temperatures were also investigated in order to assess the mechanism of the RA value decreasing in an air atmosphere. The RA values obtained from the air atmosphere were marked below 45% by the test temperature, except for over 1000${^{\circ}C}$, with the RA values remaining in low values in both the low and high temperature region, at which the RA values generally recovered in the Ar atmosphere. The surface roughness of the specimen was developed by external and internal oxidation when the specimen was deformed in an air atmosphere at high temperature, with the result being the stress concentrated at the roughness of the specimen surface, resulting in low RA values. The hot ductility in the air atmosphere was found to be likely controlled by the oxidation rate instead of the microstructures corresponding to test temperatures.

Keywords

Acknowledgement

Supported by : 동아대학교

References

  1. B. Mintz, S. Yue, and J. J. Jonas, Int. Mater. Rev. 36, 187 (1991) https://doi.org/10.1179/imr.1991.36.1.187
  2. B. Mintz, ISIJ Int. 39, 833 (1999) https://doi.org/10.2355/isijinternational.39.833
  3. B. Mintz and R. Abushosha, Mater. Sci. Tech. 8, 171 (1992) https://doi.org/10.1179/mst.1992.8.2.171
  4. W. T. Nachtrab and Y. T. Chou, Metal. Trans. A. 17A, 1995 (1986)
  5. D. A. Melford, M. A., J. Iron and Steel Inst. April, 290 (1962)
  6. B. Mintz, R. Abushosha, and D. N. Crowther, Mater. Sci. Tech. 11, 474 (1995) https://doi.org/10.1179/026708395790165156
  7. C. Nagasaki and J. Kihara, ISIJ Int. 37, 523 (1997) https://doi.org/10.2355/isijinternational.37.523
  8. S. C. Seo, K. S. Son, S. K. Lee, I. S. Kim, T. J. Lee, C. H. Yim, and D. Kim, Met. Mater. Int. 14, 559 (2008) https://doi.org/10.3365/met.mat.2008.10.559
  9. J. D. Lee and W. J. Kim, Mater. Sci. Tech. 17, 409 (2001) https://doi.org/10.1179/026708301101510131
  10. J. H. Byun, K. S. Son, S. C. Seo, J. S. Kim, J. D. Lee, C. H. Yim, I. S. Kim, S. K. Lee, and D. Kim, J. Kor. Inst. Met. & Mater. 43, 188 (2005)
  11. H. Matsuoka, K. Osawa, M. Ono, and M. Ohmura, ISIJ Int. 37, 255 (1997) https://doi.org/10.2355/isijinternational.37.255
  12. K. Kusabiraki, R. Watanabe, T. Ikehata, M. Takeda, T. Onishi, and X. Guo, ISIJ Int. 47, 1329 (2007) https://doi.org/10.2355/isijinternational.47.1329
  13. B. A. Webler and S. Sridhar, ISIJ Int. 47, 1245 (2007) https://doi.org/10.2355/isijinternational.47.1245
  14. B. Mintz and J. J. Jonas, Mater. Sci. Tech. 10, 721 (1994) https://doi.org/10.1179/mst.1994.10.8.721
  15. B. Mintz, J. R. Wilcox, and D. N. Crowther, Mater. Sci. Tech. 2, 589 (1986) https://doi.org/10.1179/026708386790329037
  16. Y. Mehara and Y. Ohmori, Mater. Sci. Eng. 62, 109 (1984) https://doi.org/10.1016/0025-5416(84)90272-6
  17. S. C. Seo, H. J. Kim, B. H. Park, K. S. Son, S. K. Lee, S. B. Kang, and D. Kim, Met. Mater. Int. 12, 273 (2006) https://doi.org/10.1007/BF03027543
  18. D. N. Crowther and B. Mintz, Mater. Sci. Tech. 2, 1099 (1986) https://doi.org/10.1179/026708386790328560
  19. D. N. Crowther, Z. Mohamed, and B. Mintz, Trans. Iron Steel Inst. Jpn. 27, 366 (1987) https://doi.org/10.2355/isijinternational1966.27.366
  20. B. Mintz, J. Lewis, and J. J. Jonas, Mater. Sci. Tech. 13, 379 (1997) https://doi.org/10.1179/026708397790302179
  21. K. S. Son, T. E. Park, B. H. Park, and D. Kim, J. Kor. Inst. Met. & Mater. 47, 217 (2009)