Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Effects of Grain Size on Carbon Diffusion in an Ultra-Low Carbon Steel for Hot Press Forming

열간 프레스 성형공정 적용을 위한 극저탄소강의 탄소확산에 미치는 결정립 크기의 영향

  • Kang, Soo Young (Dept. of Metallurgical & Material Engineering, Inha Technical College)
  • 강수영 (인하공업전문대학 금속재료과)
  • Received : 2012.08.06
  • Published : 2012.12.25
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Abstract

Carbon diffusion of ultra low carbon steel treated at $880^{\circ}C$ and $930^{\circ}C$ for 10, 30, 60 and 120 minutes was investigated using optical microscopy, SAM, EPMA, and Micro Vickers. The martensite patterns of the specimens treated at $880^{\circ}C$ and $930^{\circ}C$ were different. Martensite in the ferrite region was found in the specimen treated at $880^{\circ}C$ because of grain boundary diffusion. Such phenomena is explained by a carbon diffusion model.

Keywords

References

  1. M. G. Lee and S. J. Kim, Metal. Mater. Inter. 18, 425 (2012). https://doi.org/10.1007/s12540-012-3007-1
  2. S. Y. Kang, J. S. Lee, J. H. Kim, H. K. Lee, and K. N. Lee, Trans. Mater. Proc. 5, 263 (1996).
  3. H. S. Kim, M. H. Seo, S. J. Kim, S. C, Baik, W. J. Bang, and H. R. Lee, J. Kor. Inst. Met. & Mater. 9, 1076 (2001).
  4. J. S. Kim, M. C. Kim, W. J Bang, S. J. Lee, J. Y. Nam, and S. Y. Kang, Korea Patent, 10-2000-0045787.
  5. S. Y. Kang and S. B. Han, Korea Patent, 10-2003-0099018.
  6. S. Y. Kang and S. B. Han, Korea Patent, 10-2003-0099002.
  7. T. H. Kim, S. Y. Kang, H. G. Kim, and S. H. Park, Korea Patent, 10-2004-0114551.
  8. T. H. Kim, S. H. Park, S. Y. Kang, H. G. Kim, H. S. Son, and B. G. Choi, Patent Korea, 10-2005-0101030.
  9. B. G. Choi, S. H. Park, S. Y. Kang, H. G. Kim, H. S. Son, and T. H. Kim, Korea Patent, 10-2006-0079486.
  10. M. Shibata and M. Oonishi, SAE No 980550.
  11. M. Shibata and K. Makino, Mater. Japan 37, 525 (1998). https://doi.org/10.2320/materia.37.525
  12. D. H. Lee, C. S. Yoon, and J. D. Lim, J. of the Kor. Soc. for Heat Treat. 17, 73 (2004).
  13. J. H. Lee and W. C. Jeong, J. of the Kor. Soc. for Heat Treat. 23, 301 (2010).
  14. S. Y. Kang, Korean J. Met. Mater. 50, 433 (2012) https://doi.org/10.3365/KJMM.2012.50.6.433
  15. S. M. Lee, S. M. Kim, S. N. We, D. H. Bae, G. A. Lee, J. S. Lee, Y. B. Kim, and D. S. Bae, Korean J. Met. Mater. 50, 316 (2012). https://doi.org/10.3365/KJMM.2012.50.4.316
  16. J. H. Kim, B. O. Lee, C. B. Lee, S. H. Jee, and Y. S. Yoon, Korean J. Met. Mater. 49, 549 (2011). https://doi.org/10.3365/KJMM.2011.49.7.549
  17. J. S. Seo and S. Y. Beck, Korean J. Met. Mater. 49, 642 (2011). https://doi.org/10.3365/KJMM.2011.49.8.642
  18. J. H. Kim, K. S. Lee, S. W. Yang, B. O. Lee, and C. B. Lee, Korean J. Met. Mater. 49, 937 (2011).
  19. J. G. Lee, Y. K. Baek, K. C. Chung, and C. J. Choi, Korean J. Met. Mater. 49, 950 (2011).
  20. H. S. Kim, Y. Estrin, and M. B. Bush, Acta Mater. 48, 493 (2000). https://doi.org/10.1016/S1359-6454(99)00353-5
  21. H. S. Kim and Y. Estrin, Acta Mater. 53, 765 (2005). https://doi.org/10.1016/j.actamat.2004.10.028
  22. H. Y. Yoon, J. H. Lee, H. M. Jung, S. M. Seo, C. Y. Jo, S. H. Gwon, and B. M. Chang, Korean J. Met. Mater. 49, 58 (2011). https://doi.org/10.3365/KJMM.2011.49.1.058
  23. W. D. Kang and H. G. Park, Korean J. Met. Mater. 49, 619 (2011). https://doi.org/10.3365/KJMM.2011.49.8.619
  24. K. H. Song, H. S. Kim, and W. Y. Kim, Korean J. Met. Mater. 49, 649 (2011). https://doi.org/10.3365/KJMM.2011.49.8.649
  25. T. H. Lee, S. H. Kim, M. S. Park, M. J. Suk, and Y. D. Kim, Korean J. Met. Mater. 49, 868 (2011).
  26. H. S. Kim, C. Suryanarayana, S. J. Kim, and B. S. Chun, Powder Metall., 41, 217 (1998). https://doi.org/10.1179/pom.1998.41.3.217
  27. S. J. Hong, T. S. Kim, H. S. Kim, W. T. Kim, and B. S. Chun, Mater. Sci. Eng. A 271, 469 (2001).
  28. H. S. Kim, Mater. Sci. Eng. A 304, 327 (2001).
  29. B. Hadzima, M. Janecek, Y. Estrin, and H. S. Kim, Mater. Sci. Eng. A 462, 243 (2007). https://doi.org/10.1016/j.msea.2005.11.081
  30. S. Z. Bokshtein, M. A. Gubareva, I. E. Kontorovich, and L. M. Moroz, Mater. Sci. Heat Treat. 3, 6 (1961). https://doi.org/10.1007/BF00815232