Nuclear response of additive manufactured GRCop-84 copper for use in Lower hybrid launchers in a fusion environment

被引：22

作者：

Seltzman, A. H. ^{[1
]}

Wukitch, S. J. ^{[1
]}

机构：

[1] MIT, Plasma Sci & Fus Ctr, 190 Albany St, Cambridge, MA 02139 USA

来源：

FUSION ENGINEERING AND DESIGN | 2020年 / 159卷

基金：

美国国家科学基金会;

关键词：

Additive manufacturing; Copper alloys; Lower hybrid current drive; Nuclear response; Swelling; NEUTRON-IRRADIATION; MECHANICAL-PROPERTIES; ALLOYS; PRECIPITATION; CONDUCTIVITY; DPA; PERFORMANCE; HYDROGEN; CR;

D O I：

10.1016/j.fusengdes.2020.111726

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Recent advances in selective laser melting (SLM) 3D printing technology allow additive manufacture of lower hybrid current drive (LHCD) RF launchers from a new material, Glenn Research Copper 84 (GRCop-84), a Cr2Nb (8 at. % Cr, 4 at. % Nb) precipitation hardened alloy, in configurations unachievable with conventional machining. Tensile strength and thermal conductivity are compared to other competing high conductivity copper alloys for fusion use. Swelling and conductivity at 100 DPA when exposed to the Hanford Fast Flux Test Facility neutron spectrum is predicted in the 1-2 % and 65-70% IACS range, respectively, by comparison to copper alloys with similar precipitate and grain size. Self-similar ion irradiation of a GRCop-84 target at 430 degrees C to 20 DPA resulted in no noticeable void formation in FIB cross sections or TEM lamella.

引用

页数：12

共 12 条

[1] Brazing, Laser, and Electron-Beam Welding of Additively Manufactured GRCop-84 Copper for Phased Array Lower Hybrid Launchers
Seltzman, Andrew H.
Wukitch, Stephen J.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (06) : 1579 - 1584
[2] Surface roughness and finishing techniques in selective laser melted GRCop-84 copper for an additive manufactured lower hybrid current drive launcher
Seltzman, A. H.
Wukitch, S. J.
FUSION ENGINEERING AND DESIGN, 2020, 160
[3] RF losses in selective laser melted GRCop-84 copper waveguide for an additively manufactured lower hybrid current drive launcher
Seltzman, A. H.
Wukitch, S. J.
FUSION ENGINEERING AND DESIGN, 2020, 159
[4] Fracture characteristics and heat treatment of laser powder bed fusion additively manufactured GRCop-84 copper
Seltzman, A. H.
Wukitch, S. J.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 827
[5] Mechanical behavior of additively manufactured GRCop-84 copper alloy lattice structures
Hazeli, Kavan
June, Daniel
Anantwar, Prathmesh
Babamiri, Behzad Bahrami
ADDITIVE MANUFACTURING, 2022, 56
[6] Assembly of an Additive Manufactured GRCop-84 Copper Alloy Lower Hybrid Current Drive Launcher Antenna With Pulsed 1070-nm Fiber Laser Welding
Seltzman, Andrew H.
Ridzon, James T.
Wukitch, Stephen J.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2022, 50 (11) : 4060 - 4068
[7] Resolution and geometric limitations in laser powder bed fusion additively manufactured GRCop-84 structures for a lower hybrid current drive launcher
Seltzman, A. H.
Wukitch, S. J.
FUSION ENGINEERING AND DESIGN, 2021, 173
[8] Mechanical behavior of additively manufactured GRCop-84 copper alloy lattice structures
Hazeli, Kavan
June, Daniel
Anantwar, Prathmesh
Babamiri, Behzad Bahrami
ADDITIVE MANUFACTURING, 2022, 56
[9] Enhanced Braze Wetting on Electroplated L-PBF Additive Manufactured GRCop-84 and GRCop-42, Stainless Steel, and Refractory Alloys
Seltzman, Andrew H.
Ridzon, James T.
Wukitch, Stephen J.
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2024, : 4196 - 4201
[10] Precipitate Size in GRCop-84 Gas Atomized Powder and Laser Powder Bed Fusion Additively Manufactured Material
Seltzman, A. H.
Wukitch, S. J.
FUSION SCIENCE AND TECHNOLOGY, 2021, 77 (7-8) : 641 - 646

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