Hostname: page-component-77c89778f8-gq7q9 Total loading time: 0 Render date: 2024-07-17T09:41:58.854Z Has data issue: false hasContentIssue false
  • English
  • Français

Irradiation Damage in Dual Beam Irradiated Nanostructured FeCrAl Oxide Dispersion Strengthened Steel

Published online by Cambridge University Press:  19 January 2011

A. Richter ,
C.-L. Chen ,
A. Mücklich  and
R. Kögler
A. Richter
Affiliation:
Department of Engineering, Technical University of Applied Sciences Wildau, Bahnhofstrasse 1, 15745 Wildau, Germany
C.-L. Chen
Affiliation:
Department of Materials Science and Engineering, I-Shou University, Kaohsiung 840, Taiwan
A. Mücklich
Affiliation:
Institute of Ion Beam Physics and Materials Research, Research Center Dresden-Rossendorf (FZD), Bautzner Landstraße 400, 01328 Dresden, Germany
R. Kögler
Affiliation:
Institute of Ion Beam Physics and Materials Research, Research Center Dresden-Rossendorf (FZD), Bautzner Landstraße 400, 01328 Dresden, Germany
Get access

Abstract

An oxide dispersion strengthened steel is produced which contains Y-Al-Ti-O nanoparticles with an average diameter of 21 nm. HRTEM analysis shows that the chemical composition of the Y2O3 oxide is modified with perovskite YAlO3 (YAP), Y2Al5O12 garnet (YAG) and Y4Al2O9 monoclinic (YAM) particles. Irradiation of these alloys was performed with a dual ion beam system operating simultaneously with 2.5 MeV Fe+ to 31 dpa and 350 keV He+ to 18 appm/dpa. Ion bombardment causes atomic displacements resulting in vacancy and self-interstitial lattice defects and dislocation loops. TRIM calculations for ODS steel indicate a clear spacial separation between vacancies and self-interstitials at which the vacancy distribution is close to the surface and the interstitials are deposited at a deeper position. The helium atoms mainly accumulate in the vacancies. Fine He cavities with diameters of a few nanometers were identified in HRTEM images. Additionally to structural changes, irradiation generated defects also affect the mechanical properties of the ODS steel. These were investigated by nanoindentation, which is a suitable measuring method as the irradiation damage is created within a thin surface layer. A clear hardness increase in the irradiated depth region was observed, which reaches a maximum close to the surface. This indicates the He condensation in the vacancy dominated region predicted by the simulations.

Keywords

ion-beam processingtransmission electron microscopy (TEM)nano-indentation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1298: Symposium Q/R/T – Advanced Materials for Applications in Extreme Environments , 2011 , mrsf10-1298-r05-02
Copyright
Copyright © Materials Research Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Odette, G.R., Alinger, M.J., Wirth, B.D., Annu. Rev. Mater. Res. 38 (2008) 471–503.Google Scholar
2. Kishimoto, H., Yutani, K., Kasada, R., Kimura, A., Fusion Engineering and Design 81 (2006) 1045–1049.Google Scholar
3. Yamamoto, T., Odette, G.R., Miao, P., Hoelzer, D.T., Bentley, J., Hashimoto, N., Tanigawa, H., Kurtz, R.J., J. Nucl. Mater. 367–370 (2007) 399–400.Google Scholar
4. Pouchon, M.A., Chen, J., Ghislemi, R., Michler, J., Experimental Mechanics 50 (2010) 79–84.Google Scholar
5. Was, Gary S. “Fundamentals of Radiation Materials Science: Metals and Alloys”, Springer Berlin Heidelberg 2007.Google Scholar
6. Kaschny, J.R., Koegler, R., Tyrrof, H., Buerger, W., Eichhorn, F., Muecklich, A., Serre, C., Skorupa, W., Nucl. Instr. And Meth. A 551 (2005) 200–207.Google Scholar
7. Baluc, N., Plasma Phys. Control. Fusion 48 (2006) B165–B177.Google Scholar
8. Kögler, R., Ou, Xin, Skorupa, W., Möller, W., Appl. Phys. Lett. 92 (2008) 181906–1–3.Google Scholar
9. Chen, C.-L., Richter, A., Koegler, R., Talut, G., Dual beam irradiation of nanostructured FeCrAl oxide dispersion strengthened steel, submitted to J. Nuclear Materials 2010.Google Scholar
10. Gouldstone, A., Chollacoop, N., Dao, M., Li, J., minor, A.M., Shen, Y.-L., Acta Materialia 55 (2007) 4015–4039.Google Scholar
11. Wolf, B. and Richter, A., New Journal of Physics 5 (2003) 15.1–15.17.Google Scholar
12. Chen, C.-L., Wang, P., Tatlock, G.J., Materials at High Temperatures, 26 (2009) 299–303 Google Scholar
13. Hsiung, L.L., Fluss, M.L., Kimura, A., Materials Letters, 64 (2010) 1782–1785.Google Scholar
14. Heintze, C., Recknagel, C., Bergner, F., Hernández-Mayoral, M., Kolitsch, A., Nuclear Instr. and Meth. B 267 (2009) 1505–1508.Google Scholar
15. Odette, G.R., Miao, P., Yamamoto, T., Edwards, D.J., Kurtz, R.J., Tanigawa, H., In Situ Helium Implanter Studies, HFIR, ONL, 2010.Google Scholar
16. Nix, W.D., Gao, H., Mech, J.. Phys. Solids 46 (1998) 411–425.Google Scholar
17. Hosemann, P., Vieh, C., Greco, R.R., Kabra, S., Valdez, J.A., Cappiello, M.J., Maloy, S.A., Journal of Nuclear Materials 389 (2009) 239–247.Google Scholar
18. Shao, L., Lu, X., Jin, J., Li, Q., Liu, J., van der Heide, P. A. W., Chu, W.-K., Appl. Phys. Lett. 76, (2000) 3953.Google Scholar