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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Magnetic characterization of ODS-Eurofer steel: Remanent magnetization and magnetostriction behavior

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Author(s):
Sandim, M. J. R. [1] ; Renzetti, R. A. [1, 2] ; Bormio-Nunes, C. [1] ; Sandim, H. R. Z. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Lorena Sch Engn, BR-12602810 Lorena - Brazil
[2] Fed Univ Itajuba UNIFEI, BR-35903087 Itabira - Brazil
Total Affiliations: 2
Document type: Journal article
Source: FUSION ENGINEERING AND DESIGN; v. 126, p. 5-9, JAN 2018.
Web of Science Citations: 0
Abstract

Oxide dispersion strengthened ODS-Eurofer steel is a promising candidate for structural applications in future nuclear fusion reactors. Samples of 9Cr-ODS-Eurofer steel were cold rolled up to 80% thickness reduction and annealed up to 1350 degrees C for 1 h. The microstructural changes of the annealed samples were followed by magnetic measurements taken at room temperature. In comparison with the coercive field (H-c), the remanent magnetization (M-r) and longitudinal magnetostriction (lambda(long), 1 behaviors can be explained only if we assume some interaction between pinning sites and residual stresses in the material. It was found that H-c M-r,lambda(long)) and hardness display the same trend. At the expected fusion DEMO reactor operating conditions (around 650 degrees C and maximum magnetic field of 6 T), the magnetostrictive deformation would not surpass 15 ppm (15 mu m in 1 m). (AU)

FAPESP's process: 13/26506-8 - Study of microstructural evolution and its effects on magnetic and electric properties of two stainless steels (ODS-Eurofer and AISI 201)
Grantee:Maria Jose Ramos Sandim
Support Opportunities: Regular Research Grants
FAPESP's process: 13/19197-9 - Comparative study on martensitic transformation in Eurofer-97 and ODS-Eurofer steels for nuclear fusion application
Grantee:Hugo Ricardo Zschommler Sandim
Support Opportunities: Regular Research Grants