Slow strain rate tensile tests on T91 in static lead–bismuth eutectic
Source abstract
Abstract
Abstract The embrittlement effect of liquid lead–bismuth eutectic (LBE) on martensitic steel T91 has been studied by performing slow-strain-rate tensile (SSRT) tests in static LBE with about 1 wppm oxygen at temperatures ranging from 250 °C to 425 °C. Two groups of samples were used. Group-I samples with microcracks on the lateral surfaces indicated clearly LBE embrittlement effect at temperatures ⩾300 °C, while Group-II samples without microcracks did not show the effect. The LBE embrittlement effect occurred after the necking of specimens started. The yield and ultimate tensile strengths and uniform elongation were not affected. SEM observations showed the specimens ruptured in a brittle fracture mode when the embrittlement occurred. It is concluded that the requirements for the susceptibility of LBE embrittlement effect on the T91 steel are: surface cracks or flaws, wetting and a certain level of stress concentration at crack tips.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Nuclear reactor physics and engineering · Thermodynamic and Structural Properties of Metals and Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
Show source-provided references
1. Y. Dai, in: Proceedings of the 6th ESS General Meeting, Ancona, Italy, September 20–23, vol. 3, 1999.
2. Legris · Scripta Mater. · 2000 · 43 · 99710.1016/S1359-6462(00)00523-6 ↗
3. Kalkhof · J. Nucl. Mater. · 2003 · 318 · 14310.1016/S0022-3115(03)00015-1 ↗
4. Y. Dai, B. Long, X. Jia, H. Glasbrenner, K. Samec, F. Groeschel, J. Nucl. Mater., these Proceedings, doi:10.1016/j.jnucmat.2006.05.010.10.1016/j.jnucmat.2006.05.010 ↗
5. Rostoker · 1960
6. Fazio · J. Nucl. Mater. · 2003 · 318 · 32510.1016/S0022-3115(03)00009-6 ↗
7. B. Long, G. Scaddozzo C. Fazio, M. Agostini, A. Aiello, G. Benamati, in: Proc. of the 4th MEGAPIE Technical Review Meeting, Paris, France, March 18–19, 2003, Scientific Report of Forschungszentrum Karlsruhe, No. FZKA 6876, 2003, p. 199.
8. Auger · J. Nucl. Mater. · 2004 · 335 · 22710.1016/j.jnucmat.2004.07.025 ↗
9. Westwood · 1971 · 590
10. Nicholas · 1984
11. Anderko · 1984 · 299
12. E. Lucon, EC FP5 SPIRE program report, Deliverable no. 4, 2002.
13. V. Imbeni, C. Martini, S. Masini, G. Palombarini, ENEA report, DT-EUB-00001, 1998.