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| Home > Publications database > Damage and fatigue crack growth of Eurofer steel first wall mock-up under cyclic heat flux loads. Part 1: Electron beam irradiation tests > print |
| 001 | 201652 | ||
| 005 | 20240711092245.0 | ||
| 024 | 7 | _ | |a 10.1016/j.fusengdes.2014.01.085 |2 doi |
| 024 | 7 | _ | |a 0920-3796 |2 ISSN |
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| 100 | 1 | _ | |a You, J. H. |0 P:(DE-HGF)0 |b 0 |e Corresponding Author |
| 245 | _ | _ | |a Damage and fatigue crack growth of Eurofer steel first wall mock-up under cyclic heat flux loads. Part 1: Electron beam irradiation tests |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2014 |b Elsevier |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1435325766_21639 |2 PUB:(DE-HGF) |
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| 520 | _ | _ | |a Recently, the idea of bare steel first wall (FW) is drawing attention, where the surface of the steel is to be directly exposed to high heat flux loads. Hence, the thermo-mechanical impacts on the bare steel FW will be different from those of the tungsten-coated one. There are several previous works on the thermal fatigue tests of bare steel FW made of austenitic steel with regard to the ITER application. In the case of reduced-activation steel Eurofer97, a candidate structural material for the DEMO FW, there is no report on high heat flux tests yet. The aim of the present study is to investigate the thermal fatigue behavior of the Eurofer-based bare steel FW under cyclic heat flux loads relevant to DEMO operation. To this end, we conducted a series of electron beam irradiation tests with heat flux load of 3.5 MW/m2 on water-cooled mock-ups with an engraved thin notch on the surface. It was found that the notch root region exhibited a marked development of damage and fatigue cracks whereas the notch-free surface manifested no sign of crack formation up to 800 load cycles. Results of extensive microscopic investigation are reported. |
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| 773 | _ | _ | |a 10.1016/j.fusengdes.2014.01.085 |g Vol. 89, no. 4, p. 284 - 288 |0 PERI:(DE-600)1492280-0 |n 4 |p 284 - 288 |t Fusion engineering and design |v 89 |y 2014 |x 0920-3796 |
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