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Microstructure and Mechanical Properties of ITER Correction Coil Case Material
/ Xin, Jijun (Hefei, Inst. Plasma Phys.) ; Fang, Chao (Hefei, Inst. Plasma Phys.) ; Song, Yuntao (Hefei, Inst. Plasma Phys.) ; Wei, Jing (Hefei, Inst. Plasma Phys.) ; Huang, Chuanjun (Beijing, Tech. Inst. Phys. Chem.) ; Libeyre, Paul (Euratom, St. Paul Lez Durance) ; Simon, Fabrice (Euratom, St. Paul Lez Durance) ; Sgobba, Stefano (CERN)
The modified 316LN austenitic stainless steel was selected as ITER correction coils case material to provide structural reinforcement to the winding pack. Considering the case structure, high-assembling accuracy and other strict requirements, 316LN in special extruded form has been developed. [...]
2017 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4201707
- Published in : IEEE Trans. Appl. Supercond. 30 (2019) 9700101
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2.
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Microstructure and Mechanical Properties of the Enclosure Welding Joint for ITER Correction Coils Cases
/ Xin, Jijun (Hefei, Inst. Plasma Phys.) ; Fang, Chao (Hefei, Inst. Plasma Phys.) ; Yang, Wuxiong (Beijing U. of Tech.) ; Huang, Chuanjun (Beijing, Tech. Inst. Phys. Chem.) ; Dai, Wenhua (Hefei, Inst. Plasma Phys.) ; Wei, Jing (Hefei, Inst. Plasma Phys.) ; Song, Yuntao (Hefei, Inst. Plasma Phys.) ; Li, Laifeng (Beijing, Tech. Inst. Phys. Chem.) ; Fabrice, Simon (Euratom, St. Paul Lez Durance) ; Paul, Libeyre (Euratom, St. Paul Lez Durance) et al.
To resist the alternating electromagnetic loads, the International Thermonuclear Experimental Reactor (ITER) correction coils are protected by a 20-mm-thick 316LN austenitic stainless steel case. According to the strict tolerance requirement of the case manufacture, laser welding was applied to enclosure welding of the cases with a 20-kW high-power laser for root pass and Tungsten Inert Gas welding was applied for filler and cover passes. [...]
2020 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 8401208
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3.
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Flow and fracture of austenitic stainless steels at cryogenic temperatures
/ Fernández-Pisón, P (CERN ; Carlos III U., Madrid) ; Rodríguez-Martínez, J A (Carlos III U., Madrid) ; García-Tabarés, E (CERN ; Carlos III U., Madrid) ; Avilés-Santillana, I (CERN) ; Sgobba, S (CERN)
In this paper, we have characterized the microstructural evolution and the plastic flow and fracture behaviours of AISI 304L and AISI 316LN stainless steel grades at liquid nitrogen temperature (4 K) and at liquid helium temperature (77 K). Uninterrupted tensile experiments, where the sample is continuously deformed under quasi-static loading conditions until fracture, have been carried out with a Single-Section Sample to obtain the stress–strain characteristics of the two grades. [...]
2021
- Published in : Engineering Fracture Mechanics 258 (2021) 108042
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4.
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Friction stir welding of AISI 316LN high strength austenitic stainless steel for cryogenic application
/ Aviles Santillana, I (CERN) ; Debeux, J (CERN) ; Meyer, M (CERN) ; Muddamallappa, M (Texas A-M) ; Polo Picazo, A (CERN) ; Robe, H (Unlisted, FR) ; Rodriguez Castro, E (CERN ; Madrid U.) ; Sgobba, S (CERN) ; Weiss, KP (KIT, Karlsruhe)
Friction stir welding (FSW) is a solid state joining process that uses the heat generated by the friction of a rotating tool and the base material to join materials together. Due to the fact that the material is never melted, and that extensive plastic deformation is introduced in the weld seam, a unique set of properties is achieved. [...]
2022 - 9 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1241 (2022) , no. 1, pp. 012003
Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021
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5.
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Secondary Phases Quantification and Fracture Toughness at Cryogenic Temperature of Austenitic Stainless Steel Welds for High-Field Superconducting Magnets
/ Santillana, Ignacio Aviles (CERN) ; Pison, Pilar Fernandez (CERN) ; Langeslag, Stefanie Agnes Elisabeth (CERN) ; Sgobba, Stefano (CERN) ; Lunt, Alexander (CERN) ; Boyer, Christelle (Euratom, St. Paul Lez Durance) ; Navas, Elisa Maria Ruiz (Carlos III U., Madrid)
The ITER magnet system is based on the “cable-in-conduit” conductor concept, which consists of various types of stainless steel jackets filled with superconducting strands. The jackets provide high strength and fracture toughness to counteract the high stress imposed by, amongst others, electromagnetic loads at cryogenic temperature. [...]
2018 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4205804
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4205804
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6.
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7.
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The Laser Welding with Hot Wire of 316LN Thick Plate Applied on ITER Correction Coil Case
/ Fang, Chao (ASIPP, Anhui) ; Song, Yuntao (ASIPP, Anhui) ; Wu, Weiyue (ASIPP, Anhui) ; Wei, Jing (ASIPP, Anhui) ; Zhang, Shuquan (ASIPP, Anhui) ; Li, Hongwei (ITER China, Beijing) ; Dolgetta, N (ITER, St. Paul Lez Durance) ; Libeyre, P (ITER, St. Paul Lez Durance) ; Cormany, C (ITER, St. Paul Lez Durance) ; Sgobba, S (CERN)
ITER correction coil (CC) cases have characteristics of small cross section, large dimensions, and complex structure. The cases are made of heavy thick (20 mm), high strength and high toughness austenitic stainless steel 316LN. [...]
2014
- Published in : J. Fusion Energy 33 (2014) 752-758
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8.
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Fatigue performance evaluation for ITER IVC conductor component materials
/ Jin, H (Hefei, Inst. Plasma Phys. ; Euratom, St. Paul Lez Durance) ; Vostner, A (Euratom, St. Paul Lez Durance) ; Wu, Y (Hefei, Inst. Plasma Phys.) ; Macioce, D (Euratom, St. Paul Lez Durance) ; Sgobba, S (CERN) ; Huang, C (Beijing, Tech. Inst. Phys. Chem.) ; Romero Rodriguez, C (CERN ; Carlos III U., Madrid) ; Fernandez Pison, P (CERN ; Carlos III U., Madrid) ; Elisabeth Langeslag, S A (CERN) ; Aviles Santillana, I (CERN ; Carlos III U., Madrid) et al.
The ITER IVCs are made of stainless steel mineral-insulated conductors composed by an OFE copper conductor and a SS316LN jacket. The baseline design requires the coils to endure all ITER machine life time. [...]
2017 - 9 p.
- Published in : Vacuum 145 (2017) 86-94
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9.
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10.
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Qualification of structural stainless steel products for the ITER correction coil cases
/ Sgobba, Stefano (CERN) ; Dalin, Jean-Michel (CERN) ; Langeslag, Stefanie Agnes Elisabeth (CERN) ; Aviles Santillana, Ignacio (CERN ; Carlos III U., Madrid) ; Libeyre, Paul (Euratom, St. Paul Lez Durance) ; Simon, Fabrice (Euratom, St. Paul Lez Durance) ; Wei, Jing (Hefei, Inst. Plasma Phys.) ; Chai, Zhiyong (Taiyuan Iron & Steel (group) Co., Ltd. (TISCO), Taiyuan) ; Li, Laifeng (Beijing, Tech. Inst. Phys. Chem.)
The ITER Correction Coils (CCs) consist of three sets of six coils, Bottom (BCC), Side (SCC) and Top Correction Coils (TCC), respectively. The CCs rely on 10 kA NbTi cable-in-conduit conductor. [...]
2017 - 5 p.
- Published in : Fusion Eng. Des. 124 (2017) 980-984
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