Influence of nanovoids on α–α′ phase separation in FeCrAl oxide dispersion strengthened alloy

作者: C. Capdevila , M.M. Aranda , R. Rementeria , R. Domínguez-Reyes , E. Urones-Garrote

DOI: 10.1016/J.SCRIPTAMAT.2015.07.044

关键词:

摘要: Abstract The presence of nanovoids in the vicinity oxide particles FeCrAl dispersion strengthened (ODS) alloy has been identified. These are inherent to manufacturing route and remain quite resistant during heat treatments. Positron annihilation spectroscopy (PAS) experiments demonstrate that these trap Cr inside thereby reducing Cr-content matrix. This might lead a delay α – ′ phase separation process as observed by atom probe tomography (APT).

参考文章(21)
V. de Castro, T. Leguey, A. Muñoz, M.A. Monge, P. Fernández, A.M. Lancha, R. Pareja, Mechanical and microstructural behaviour of Y2O3 ODS EUROFER 97 Journal of Nuclear Materials. ,vol. 367, pp. 196- 201 ,(2007) , 10.1016/J.JNUCMAT.2007.03.146
C. Capdevila, Y.L. Chen, N.C.K. Lassen, A.R. Jones, H.K.D.H. Bhadeshia, Heterogeneous deformation and recrystallisation of iron base oxide dispersion strengthened PM2000 alloy Materials Science and Technology. ,vol. 17, pp. 693- 699 ,(2001) , 10.1179/026708301101510410
Olof C Hellman, Justin A Vandenbroucke, Järg Rüsing, Dieter Isheim, David N Seidman, None, Analysis of Three-dimensional Atom-probe Data by the Proximity Histogram Microscopy and Microanalysis. ,vol. 6, pp. 437- 444 ,(2000) , 10.1007/S100050010051
S. Ukai, M. Harada, H. Okada, M. Inoue, S. Nomura, S. Shikakura, K. Asabe, T. Nishida, M. Fujiwara, Alloying design of oxide dispersion strengthened ferritic steel for long life FBRs core materials Journal of Nuclear Materials. ,vol. 204, pp. 65- 73 ,(1993) , 10.1016/0022-3115(93)90200-I
Hideaki Ohkubo, Z. Tang, Y. Nagai, M. Hasegawa, T. Tawara, M. Kiritani, Positron annihilation study of vacancy-type defects in high-speed deformed Ni, Cu and Fe Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 350, pp. 95- 101 ,(2003) , 10.1016/S0921-5093(02)00705-0
C. Capdevila, U. Miller, H. Jelenak, H.K.D.H. Bhadeshia, Strain heterogeneity and the production of coarse grains in mechanically alloyed iron-based PM2000 alloy Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 316, pp. 161- 165 ,(2001) , 10.1016/S0921-5093(01)01234-5
G. Bonny, D. Terentyev, L. Malerba, New Contribution to the Thermodynamics of Fe-Cr Alloys as Base for Ferritic Steels Journal of Phase Equilibria and Diffusion. ,vol. 31, pp. 439- 444 ,(2010) , 10.1007/S11669-010-9782-9
Y. de Carlan, J.-L. Bechade, P. Dubuisson, J.-L. Seran, P. Billot, A. Bougault, T. Cozzika, S. Doriot, D. Hamon, J. Henry, M. Ratti, N. Lochet, D. Nunes, P. Olier, T. Leblond, M.H. Mathon, CEA developments of new ferritic ODS alloys for nuclear applications Journal of Nuclear Materials. ,vol. 386, pp. 430- 432 ,(2009) , 10.1016/J.JNUCMAT.2008.12.156