Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Effects of the Sintering Variable on Impact Energy in MA 316L ODS and Wet 316L ODS Stainless Steels

MA 316L ODS 및 Wet 316L ODS 스테인리스강에서 충격에너지에 미치는 소결 공정의 영향

  • Published : 2010.04.28
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Abstract

Two kinds of oxide-dispersion-strengthened (ODS) 316L stainless steel were manufactured using a wet mixing process(wet) and a mechanical alloying method (MA). An MA 316L ODS was prepared by a mixing of metal powder and a mechanical alloying process. A wet 316L ODS was manufactured by a wet mixing with 316L stainless steel powder. A solution of yttrium nitrate was dried after being in the wet 316L ODS alloy. The results showed that carbon and oxygen were effectively reduced during the degassing process before the hydroisostatic process (HIP) in both alloys. It appeared that the effect of HIP treatment on increase in impact energy was pronounced in the MA 316L ODS alloy. The MA 316L ODS alloy showed a higher yield strength and a smaller elongation, when compared to the wet 316L ODS alloy. This seemed to be attributed to the enhancement of bonding between oxide and matrix particles from HIP and to the presence of a finer oxide of about 20 nm from the MA process in the MA 316L ODS alloy.

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References

  1. J. H. Hong: Mechanic and Materials, 19 (2007) 6.
  2. S. Ukai, S. Mizuta, M. Fujiwara, T. Yoshitake, T. Okuda, M. Fujiwara, S. Hagi and T. Kobayashi: J. Nucl. Mater., 283 (2000) 702. https://doi.org/10.1016/S0022-3115(00)00114-8
  3. A. Alamo, V. Lambard, X. Averty and M. H. Mathon: J. Nucl. Mater., 329 (2004) 333. https://doi.org/10.1016/j.jnucmat.2004.05.004
  4. S. Yamashita, N. Akasaka and S. Ohnuki: J. Nucl. Mater., 329 (2004) 377. https://doi.org/10.1016/j.jnucmat.2004.04.041
  5. T. Kariya and T. Isomoto: Publication of patent applications, JP2003-027109 (2003).
  6. J. H. Ahn, H. J. Kim, I. H. Oh and Y. J. Kim: J. Alloy. Comp., 483 (2009) 247. https://doi.org/10.1016/j.jallcom.2008.08.138
  7. P. Shunmi, W. Chengjian, H. Benfu and Z. Shouhua: Transaction of Metal Heat Treatment, 18 (1997) 346.
  8. H. J. Ryu, M. H. Kim, C. H. Han and J. S. Jang: ANS Annual Meeting, Jun 6-12, Anaheim, USA (2008).
  9. C. Capdevila and Harry K. D. H. Bhadeshia: Adv. Eng. Mater., 3 (2001) 647. https://doi.org/10.1002/1527-2648(200109)3:9<647::AID-ADEM647>3.0.CO;2-4
  10. H. Y. Kim, O. Y. Kwon, J. S. Jang and S. H. Hong: Scrip. Mater., 54 (2006) 1703 https://doi.org/10.1016/j.scriptamat.2005.12.033
  11. Y. Z. Shen, H. D. Cho and J. S. Jang: Nuclear Engineering and Technology, 40 (2008) 99. https://doi.org/10.5516/NET.2008.40.2.099
  12. M. P. Phaniraj, D. I. Kim, J. H. Shim and Y. W. Cho: Acta. Mater., 57 (2009) 1856. https://doi.org/10.1016/j.actamat.2008.12.026
  13. M. H. Kim, H. J. Ryu, S. S. Kim, C. H. Han, J. S. Jang, and O. J. Kwon: J. Korean Powder Metall. Inst., 16 (2009) 122 (Korean). https://doi.org/10.4150/KPMI.2009.16.2.122
  14. G. E. Dieter: Mechanical Metalurgy (3rd Ed.), McGraw Hill, (1986) 212.