This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2007.03.122 in citations.
Effect of a high helium content on the flow and fracture properties of a 9Cr martensitic steel
Effect of a high helium content on the flow and fracture properties of a 9Cr martensitic steel
An experimental characterization was conducted of helium effects on the mechanical properties of a 9Cr martensitic steel. Six sub-size Charpy samples were implanted in the notch region at 250 degrees C with 0.25 at.% helium and subsequently tested in 3-point bending at room temperature. Brittle frac...
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Personal Name(s): | Henry, J. |
---|---|
Vincent, L. / Averty, X. / Marini, B. / Jung, P. | |
Contributing Institute: |
Streumethoden; IFF-4 |
Published in: | Journal of nuclear materials, 367-370 (2007) S. 411 - 416 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2007
|
Physical Description: |
411 - 416 |
DOI: |
10.1016/j.jnucmat.2007.03.122 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Journal of Nuclear Materials
367-370 |
Subject (ZB): | |
Publikationsportal JuSER |
An experimental characterization was conducted of helium effects on the mechanical properties of a 9Cr martensitic steel. Six sub-size Charpy samples were implanted in the notch region at 250 degrees C with 0.25 at.% helium and subsequently tested in 3-point bending at room temperature. Brittle fracture mode (cleavage and intergranular fracture) was systematically observed in the implanted zones of the samples. Finite element calculations of the tests, using as input the tensile properties measured on a helium loaded sample, were performed in order to determine the fracture stress at the onset of brittle crack propagation. Preliminary TEM investigations of the implantation-induced microstructure revealed a high density of small helium bubbles. (c) 2007 Elsevier B.V. All rights reserved. |