Skip to main content
SpringerLink
Log in

Discrete dislocation plasticity analysis of dispersion strengthening in oxide dispersion strengthened (ODS) steels

  • Published:
Journal of Central South University Aims and scope Submit manuscript

Abstract

A discrete dislocation plasticity analysis of dispersion strengthening in oxide dispersion strengthened (ODS) steels was described. Parametric dislocation dynamics (PDD) simulation of the interaction between an edge dislocation and randomly distributed spherical dispersoids (Y2O3) in bcc iron was performed for measuring the influence of the dispersoid distribution on the critical resolved shear stress (CRSS). The dispersoid distribution was made using a method mimicking the Ostwald growth mechanism. Then, an edge dislocation was introduced, and was moved under a constant shear stress condition. The CRSS was extracted from the result of dislocation velocity under constant shear stress using the mobility (linear) relationship between the shear stress and the dislocation velocity. The results suggest that the dispersoid distribution gives a significant influence to the CRSS, and the influence of dislocation dipole, which forms just before finishing up the Orowan looping mechanism, is substantial in determining the CRSS, especially for the interaction with small dispersoids. Therefore, the well-known Orowan equation for determining the CRSS cannot give an accurate estimation, because the influence of the dislocation dipole in the process of the Orowan looping mechanism is not accounted for in the equation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. UKAI S, HARADA M, OKADA H, INOUE M, NOMURA S, SHIKAKURA S, ASABE K, NISHIDA T, FUJIWARA M. Alloying design of oxide dispersion strengthened ferric steel for long life FBRs core materials [J]. Journal of Nuclear Materials, 1993, 204: 65–73.

    Article  Google Scholar 

  2. KUBENA I, KRUMI T. Fatigue life and microstructure of ODS steels [J]. Engineering Fracture Mechanics, 2013, 103: 39–47.

    Article  Google Scholar 

  3. ISSELIN J, KASADA R, KIMURA A. Corrosion behavior of 16%Cr-4%Al and 16%Cr ODS ferric steels under different metallurgical conditions in a supercritical water environment [J]. Corrosion Science, 2010, 52: 3266–3270.

    Article  Google Scholar 

  4. KRUMI T, KUBENA I, POLAK J. Fatigue behavior and surface relief in ODS steels [J]. Procedia Engineering, 2010, 10: 1685–1690.

    Article  Google Scholar 

  5. OHNUMA M, SUZUKI J, OHTSUKA S, KIM S W, KAITO T, INOUE M, KITAZAWA H. A new method for the quantitative analysis of the scale and composition of nanosized oxide in 9Cr-ODS steel [J]. Acta Materialia, 2009, 57: 5571–5581.

    Article  Google Scholar 

  6. OKUDA N, KASADA R, KIMURA A. Statistical evaluation of anisotropic fracture behavior of ODS ferric steels by using small punch tests [J]. Journal of Nuclear Materials, 2009, 386/387/388: 974–978.

    Article  Google Scholar 

  7. OHTSUKA S, KAITO T, INOUE M, ASAYAMA T, KIM S W, UKAI S, NARITA T, SAKASEGAWA H. Effects of aluminum on high-temperature strength in 9Cr-ODS steel [J]. Journal of Nuclear Materials, 2009, 386/367/388: 479–482.

    Article  Google Scholar 

  8. SAKASEGAWA H, TAMURA M, OHTSUKA S, UKAI S, TANIGAWA H, KOHYAMA A, FUJIWARA M. Precipitation behavior of oxide particles in mechanically alloyed powder of oxide-dispersion-strengthened steel [J]. Journal of Alloys and Composites, 2008, 452: 2–6.

    Article  Google Scholar 

  9. OH S, LEE JS, JANG C, KUMURA A. Irradiation hardening and embrittlement in high-Cr oxide dispersion strengthened steels [J]. Journal of Nuclear Materials, 2009, 386/387/388: 503–506.

    Article  Google Scholar 

  10. Van der GIESSEN E, NEEDLEMAN A. Discrete dislocation plasticity: A simple planar model [J]. Modeling and Simulation in Materials Science and Engineering, 1995, 3: 689–735.

    Article  Google Scholar 

  11. TAKAHASHI A, GHONIEM N M. A computational method for dislocation-precipitate interaction [J]. Journal of Mechanics and Physics of Solids, 2008, 58: 1534–1553.

    Article  Google Scholar 

  12. BAKO B, WEYGAND D, SAMARAS M, CHEN J, POUCHON M A, GUMBSCH P, HOFFELNER W. Discrete dislocation dynamics simulations of dislocation interactions with Y2O3 particles in PM 2000 single crystals [J]. Philosophical Magazine, 2007, 87: 3645–3656.

    Article  Google Scholar 

  13. TAKAHASHI A, CHEN Z, GHONIEM N, KIOUSSIS N. atomistic/continuum modeling of dislocation interaction with Y2O3 particles in Iron [J]. Journal of Nuclear Materials, 2011, 417: 1098–1101.

    Article  Google Scholar 

  14. GHONIEM N M, TONG S H, SUN L Z. Parametric dislocation dynamics: A thermodynamics based approach to investigations of mesoscopic plastic deformation [J]. Physical Review B, 2000, 61: 913–927.

    Article  Google Scholar 

  15. TIMOSHENKO S P, GOODIER J N. Theory of elasticity [M]. Third edition. Singapore: McGraw-Hill. 1970.

    Google Scholar 

  16. UKAI S, FUJIWARA M. Perspective of ODS alloys application in nuclear environments [J]. Journal of Nuclear Materials, 2002, 307/308/309/310/311: 749–757.

    Article  Google Scholar 

  17. MOHLES V, FRUHSTORFER B. Computer simulations of Orowan process controlled dislocation glide in particle arrangements of various randomness [J]. Acta Materialia, 2002, 50: 2503–2516.

    Article  Google Scholar 

  18. KIM I S, CHOI B Y, KANG C Y, OKUDA T, MAZIZSZ P J, MIYAHARA K. Effect of Ti and W on the mechanical properties and microstructure of 12% Cr base mechanical-alloyed nano-sized ODS ferric alloys [J]. ISIJ International, 2003, 43: 1640–1646.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan

    Akiyuki Takahashi & Shota Sato

Authors
  1. Akiyuki Takahashi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Shota Sato
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Shota Sato.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Takahashi, A., Sato, S. Discrete dislocation plasticity analysis of dispersion strengthening in oxide dispersion strengthened (ODS) steels. J. Cent. South Univ. 21, 1249–1255 (2014). https://doi.org/10.1007/s11771-014-2059-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-014-2059-4

Key words

Search

Navigation