Joining tungsten with steel for DEMO: Simultaneous brazing by Cu-Ti amorphous foils and heat treatment

被引：14

作者：

Bachurina, Diana ^{[1
]}

Suchkov, Alexey ^{[1
]}

Gurova, Julia ^{[1
]}

Savelyev, Maxim ^{[1
]}

Dzhumaev, Pavel ^{[1
]}

Kozlov, Ilya ^{[1
]}

Svetogorov, Roman ^{[2
]}

Leont'eva-Smirnova, Maria ^{[1
,3
]}

Sevryukov, Oleg ^{[1
]}

机构：

[1] Natl Res Nucl Univ MEPhI, Dept Mat Sci, Moscow 115409, Russia

[2] Natl Res Ctr Kurchatov Inst, Moscow 123182, Russia

[3] Bochvar High Technol Res Inst Inorgan Mat, Moscow 123098, Russia

来源：

FUSION ENGINEERING AND DESIGN | 2021年 / 162卷

关键词：

DEMO; Ferritic-martensitic steel; Tungsten; First wall; Brazing; 1ST WALL; HIP JOINTS; MICROSTRUCTURE; OPTIMIZATION;

D O I：

10.1016/j.fusengdes.2020.112099

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：

Development of a reliable technology to join tungsten with steel is essential for DEMO application; however, it is difficult due to large differences in their physical properties. To solve this problem, high-temperature brazing was carried out. Cu-Ti brazing alloys, which were rapidly solidified into foil, were used together with a compensating vanadium interlayer, so the EK-181 steel/Cu-28Ti/V/Cu-50Ti/W and EK-181/Cu-50Ti/V/Cu-50Ti/W brazed joints were obtained. The microstructures of the seams were investigated by optical microscopy, SEM (EDX, EBSD) and synchrotron XRD. Thermocycling and shear strength tests showed that Cu-28Ti wt. % brazing alloy ensures a firmer joint compared to Cu-50Ti wt. %. The Cu-28Ti wt. % brazing alloy was used to perform high-temperature brazing in the brazing mode equivalent to traditional EK-181 steel heat treatment. It showed that every step of the heat treatment affected the microstructures and the shear strength.

引用

页数：11

共 33 条

[1]

Agafonov A. N., 2006, PERSPEKT MAT, P40

[2]

Andy Watson S.W., PHASE DIAGRAM CU V S

[3] DEMO Breeding Blanket Helium Cooled First Wall design investigation to cope high heat loads [J].

Aubert, Julien ;

Aiello, Giacomo ;

Boullon, Remi ;

Hernandez, Francisco A. ;

Jaboulay, Jean-Charles .

FUSION ENGINEERING AND DESIGN, 2019, 146 :514-517

[4] High-temperature brazing of tungsten with steel by Cu-based ribbon brazing alloys for DEMO [J].

Bachurina, Diana ;

Suchkov, Alexey ;

Filimonov, Alexey ;

Fedotov, Ivan ;

Savelyev, Maxim ;

Sevryukov, Oleg ;

Kalin, Boris .

FUSION ENGINEERING AND DESIGN, 2019, 146 :1343-1346

[5] Process optimization for diffusion bonding of tungsten with EUROFER97 using a vanadium interlayer [J].

Basuki, Widodo Widjaja ;

Aktaa, Jarir .

JOURNAL OF NUCLEAR MATERIALS, 2015, 459 :217-224

[6] Diffusion bonding between W and EUROFER97 using V interlayer [J].

Basuki, Widodo Widjaja ;

Aktaa, Jarir .

JOURNAL OF NUCLEAR MATERIALS, 2012, 429 (1-3) :335-340

[7] Objectives and status of EUROfusion DEMO blanket studies [J].

Boccaccini, L. V. ;

Aiello, G. ;

Aubert, J. ;

Bachmann, C. ;

Barrett, T. ;

Del Nevo, A. ;

Demange, D. ;

Forest, L. ;

Hernandez, F. ;

Norajitra, P. ;

Porempovic, G. ;

Rapisarda, D. ;

Sardain, P. ;

Utili, M. ;

Vala, L. .

FUSION ENGINEERING AND DESIGN, 2016, 109 :1199-1206

[8] Effect of joining temperature on the microstructure and strength of W-steel HIP joints with Ti/Cu composite interlayer [J].

Cai, Qingshan ;

Liu, Wensheng ;

Ma, Yunzhu ;

Zhu, Wentan ;

Pang, Xinkuan .

JOURNAL OF NUCLEAR MATERIALS, 2018, 507 :198-207

[9] Diffusion brazing of tungsten and steel using Ti-Ni liquid phase forming interlayer [J].

Cai, Qingshan ;

Liu, Wensheng ;

Ma, Yunzhu ;

Wang, Zixuan .

FUSION ENGINEERING AND DESIGN, 2015, 91 :67-72

[10] Characterisation of joined surface modified SiCf/SiC composites [J].

Casalegno, Valentina ;

Valenza, Fabrizio ;

Balagna, Cristina ;

Sedlak, Richard ;

Girman, Vladimir ;

Salvo, Milena ;

des Ambrois, Stefano De la Pierre ;

Ferraris, Monica .

CERAMICS INTERNATIONAL, 2020, 46 (04) :4159-4166

← 1 2 3 4 →