Journal ArticleDOI
Performance of deformed tungsten under ELM-like plasma exposures in QSPA Kh-50
Igor E. Garkusha,I.S. Landman,Jochen Linke,V.A. Makhlaj,A. V. Medvedev,S.V. Malykhin,S. Peschanyi,Gerald Pintsuk,A. T. Pugachev,V. I. Tereshin +9 more
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TLDR
In this article, the effects of Ductile-to-Brittle Transition Temperature (DBTT) on tungsten surface was analyzed after 1 pulse, 5 pulses and 10 pulses of 0.25ms time duration to investigate the influence of material modification by plasma exposures on cracking thresholds.About:
This article is published in Journal of Nuclear Materials.The article was published on 2011-08-01. It has received 51 citations till now. The article focuses on the topics: Tungsten.read more
Citations
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Journal ArticleDOI
Extraordinary high ductility/strength of the interface designed bulk W-ZrC alloy plate at relatively low temperature.
Z.M. Xie,R. Liu,R. Liu,Shiding Miao,Shiding Miao,Xinglian Yang,Xinglian Yang,T. Zhang,T. Zhang,X.P. Wang,X.P. Wang,Qi-Wu Fang,Qi-Wu Fang,C.S. Liu,C.S. Liu,G.-N. Luo,Y. Y. Lian,Xialin Liu +17 more
TL;DR: This processing route offers the special coherent interfaces of grain/phase boundaries and the diminishing O impurity at GBs, which significantly strengthens GB/PBs and thereby enhances the ductility/strength/plasticity of W alloy and can be used in the future to prepare new alloys with higher ductile/strength.
Journal ArticleDOI
The influence of plasma-surface interaction on the performance of tungsten at the ITER divertor vertical targets
Journal ArticleDOI
Recrystallization and thermal shock fatigue resistance of nanoscale ZrC dispersion strengthened W alloys as plasma-facing components in fusion devices
Z.M. Xie,Shiding Miao,Shiding Miao,R. Liu,L. Zeng,L. Zeng,T. Zhang,Qi-Wu Fang,Qi-Wu Fang,C.S. Liu,X.P. Wang,Y.Y. Lian,X. Liu,L.H. Cai +13 more
TL;DR: In this paper, the effects of edge-localized mode like transient heat events on the as-rolled and recrystallized WZrC were investigated carefully by employing heat treatments with isochronal experiments, the evolution of tungsten grain size/orientation, second phase particle distribution, thermal conductivity and mechanical properties were systematically studied.
Journal ArticleDOI
High thermal shock resistance of the hot rolled and swaged bulk W–ZrC alloys
Z.M. Xie,Z.M. Xie,R. Liu,R. Liu,Shu Miao,Shu Miao,Xinyi Yang,Xinyi Yang,T. Zhang,T. Zhang,Qianfeng Fang,Qianfeng Fang,Xianping Wang,Xianping Wang,Congwei Liu,Congwei Liu,Y.Y. Lian,X. Liu,G.-N. Luo +18 more
TL;DR: In this paper, the thermal shock resistance and mechanical properties of the W-0.5wt% ZrC (WZC) alloys manufactured by ordinary sintering followed by swaging or rolling process were investigated.
Journal ArticleDOI
Recent progress on the R&D of W-ZrC alloys for plasma facing components in fusion devices
R. Liu,Z.M. Xie,Junfeng Yang,T. Zhang,T. Hao,Xianping Wang,Qianfeng Fang,Qianfeng Fang,Congwei Liu +8 more
TL;DR: In this article, a review of W-ZrC materials for PFCs, including the design idea, optimization of composition, fabrication technology (from powder metallurgy processing to hot working, from small specimen to large-sized bulk material), microstructure and performance (mechanical properties, thermal conductivity, resistance to thermal shocks and to H/He irradiation, H isotope retention behaviors) were reviewed.
References
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Journal ArticleDOI
Recent analysis of key plasma wall interactions issues for ITER
J. Roth,E. Tsitrone,A. Loarte,Th. Loarer,G.F. Counsell,Rudolf Neu,V. Philipps,S. Brezinsek,Michael Lehnen,P. Coad,Ch. Grisolia,Klaus Schmid,K. Krieger,A. Kallenbach,Bruce Lipschultz,R.P. Doerner,Rion A. Causey,V.K. Alimov,W. M. Shu,O. V. Ogorodnikova,A. Kirschner,Gianfranco Federici,A.S. Kukushkin +22 more
TL;DR: In this paper, different aspects of the PWI are assessed in their importance for the initial wall materials choice: CFC for the strike point tiles, W in the divertor and baffle and Be on the first wall.
Journal ArticleDOI
Cracking failure study of ITER-reference tungsten grade under single pulse thermal shock loads at elevated temperatures
TL;DR: In this article, the authors examined cracks in an ITER-reference tungsten grade under single thermal shock loading and found that the major cracks were generated due to the brittleness of the material and microcracks were formed in a process which was initiated by plastic deformation at high temperature.
Journal ArticleDOI
Application of powerful quasi-steady-state plasma accelerators for simulation of ITER transient heat loads on divertor surfaces
V. I. Tereshin,A. N. Bandura,O.V. Byrka,V.V. Chebotarev,Igor E. Garkusha,I.S. Landman,V.A. Makhlaj,I M Neklyudov,D.G. Solyakov,A.V. Tsarenko +9 more
TL;DR: In this paper, high power plasma interaction with material surfaces under conditions simulating the ITER disruptions and type I ELMs was investigated, where different materials were exposed to plasma with repetitive pulses of 250 µs duration, the ion energy of up to 0.6 keV, and the heat loads varying in the 0.5-25 MJ m−2 range.
Journal ArticleDOI
The latest results from ELM-simulation experiments in plasma accelerators
Igor E. Garkusha,N I Arkhipov,N S Klimov,V.A. Makhlaj,V.M. Safronov,I.S. Landman,V. I. Tereshin +6 more
TL;DR: In this paper, the results of ELM-simulation experiments with quasi-stationary plasma accelerators (QSPAs) Kh-50 (Kharkov, Ukraine) and QSPA-T (Troitsk, Russia) as well as experiments in the pulsed plasma gun MK-200UG (troitsk- Russia) are discussed.
Journal ArticleDOI
Damage to preheated tungsten targets after multiple plasma impacts simulating ITER ELMs
Igor E. Garkusha,A. N. Bandura,O.V. Byrka,V.V. Chebotarev,I.S. Landman,V.A. Makhlaj,S. Pestchanyi,V. I. Tereshin +7 more
TL;DR: In this paper, the behavior of preheated tungsten targets under repetitive ELM-like plasma pulses is studied in simulation experiments with the quasi-stationary plasma accelerator QSPA Kh-50.