Irradiation damage on CrNbTaVWx high entropy alloys

被引：0

作者：

Martins, R. ^{[1
]}

Correia, J. B. ^{[2
]}

Czarkowski, P. ^{[3
]}

Miklaszewski, R. ^{[3
]}

Malaquias, A. ^{[1
]}

Mateus, R. ^{[1
]}

Alves, E. ^{[1
]}

Dias, M. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Plasmas & Fusao Nucl, Inst Super Tecn, Ave Rovisco Pais, P-1049001 Lisbon, Portugal

[2] LNEG Lab Nacl Energia & Geol, Estr Paco Lumiar, P-1649038 Lisbon, Portugal

[3] Inst Plasma Phys & Laser Microfus IFPiLM, 23 Hery Str, PL-01497 Warsaw, Poland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2023年 / 538卷

关键词：

Plasma facing components; High entropy alloys; Irradiation damage; Melting; Swelling; PERFORMANCE; RETENTION; STABILITY; BEHAVIOR; SURFACE; HELIUM;

D O I：

10.1016/j.nimb.2023.03.010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

CrNbTaVWx high-entropy alloys have been developed for plasma facing components to be applied in nuclear fusion reactors. The CrNbTaVWx (x = 1 and 1.7) compositions were prepared by ball milling and consolidated at 1600 degrees C under 90 MPa. To study the irradiation resistance of these materials, deuterium plasmas were used to irradiate the samples in the PF-1000U facility with 1 and 3 discharges. Structural changes before and after irradiation were analyzed by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy. Nuclear reaction analysis was carried out with 1000 and 2300 keV 3He+ ion beams to evaluate the profile and amount of retained deuterium on the irradiated samples. After irradiation, the sample with higher W content revealed swelling and melting for all discharges, while in the case of CrNbTaVW only blisters were observed. The deuterium retention was higher for CrNbTaVW1.7 when compared with CrNbTaVW for 3 discharges applied.

引用

页码：212 / 217

页数：6

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