A Ti-Fe-Sn thin film assembly for joining tungsten and reduced activation ferritic-martensitic steels

Wen, Zhu; Qiang, Jianbing; Wang, Yingmin; Sun, Jingjing; Wang, Jianbao; Lian, Youyun; Feng, Fan; Liu, Xiang

doi:10.1016/j.matdes.2017.03.060

Cited by 24 publications

(10 citation statements)

References 21 publications

(37 reference statements)

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“…As a result, an ITER-type CuCrZr pipe concept was chosen for Research & Development (R&D) activities for divertor applications. However, a lot of studies have already been published on helium-cooled divertor concepts [13,15,[24][25][26][27].…”

Section: Heat Loadsmentioning

confidence: 99%

“…Brazed Joint, wt.% One of the alternative options to copper and nickel was presented by W. Zhu et al [15], where electroplated fully reduced activation Ti-Fe-Sn coating was used to join tungsten to CLF-1 steel. Brazing was carried out at 1090 • C for 5 min.…”

Section: Refmentioning

confidence: 99%

“…Thus, Fe-based and Ti-based brazing alloys with added melting-point depressants (B, Be, Si) could prospectively aid in the joining of tungsten to RAFM steel. Summarizing the review above, only a few joints can endure the stresses calculated in Section 2.3: [15,18,19,33,38,46]. The highest strength relates to the joints brazed by pure copper.…”

Section: Brazingmentioning

confidence: 99%

“…The first is carried out by means of hot isostatic pressing [8,9] and spark plasma sintering [10,11]. The second is carried out by means of vacuum brazing, using foils [12,13], powders [14], and liquid-forming interlayers [15]. Some of the advantages of considering brazing as a prospective technology include:…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Overview of the Mechanical Properties of Tungsten/Steel Brazed Joints for the DEMO Fusion Reactor

Bachurina

Vorkel

Сучков

et al. 2021

Metals

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A Demonstration (DEMO) thermonuclear reactor is the next step after the International Thermonuclear Experimental Reactor (ITER). Designs for a DEMO divertor and the First Wall require the joining of tungsten to steel; this is a difficult task, however, because of the metals’ physical properties and necessary operating conditions. Brazing is a prospective technology that could be used to solve this problem. This work examines a state-of-the-art solution to the problem of joining tungsten to steel by brazing, in order to summarize best practices, identify shortcomings, and clarify mechanical property requirements. Here, we outline the ways in which brazing technology can be developed to join tungsten to steel for use in a DEMO application.

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Section: Heat Loadsmentioning

confidence: 99%

Section: Refmentioning

confidence: 99%

Section: Brazingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Overview of the Mechanical Properties of Tungsten/Steel Brazed Joints for the DEMO Fusion Reactor

Bachurina

Vorkel

Сучков

et al. 2021

Metals

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“…Nevertheless, it is necessary to select a reliable manufacturing technology. Several methods have been proposed: brazing with powder alloys [15], galvanic layers [16] and amorphous foils [17], or solid-state technologies for diffusion bonding [12,18,19]. Brazing 2 of 15 is considered to be the most reliable technology, because it does not cause creep of the materials which are to be joined, and the cost is lower compared with hot isostatic pressing et al According to ITER experience, it is also important to use a technology which allows local repair of damaged components during production [20].…”

Section: Introductionmentioning

confidence: 99%

Brazing Tungsten/Tantalum/RAFM Steel Joint for DEMO by Fully Reduced Activation Brazing Alloy 48Ti-48Zr-4Be

Bachurina

Сучков

Gurova

et al. 2021

Metals

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To create a DEMO reactor, it is necessary to develop high-quality technology to join tungsten with reduced-activation ferritic-martensitic (RAFM) steel (Rusfer, Eurofer, CLF-1, etc.). Difficulties arise in their direct connection due to the large difference in the coefficient of thermal expansion (CTE). To suppress the difference of CTE, intermediate interlayers are usually used, such as vanadium or tantalum, and brazing is a prospective technology to conduct the joining. The vast majority of works represent copper- or nickel-based brazing alloys, but their applicability is under significant discussion due to their activation properties. That is why, in this work, fully reduced activation 48Ti-48Zr-4Be wt.% brazing alloy was used. The following joint was made: Rusfer steel/48Ti-48Zr-4Be/Ta/48Ti-48Zr-4Be/W. The brazing was successfully carried out under a mode providing thermal heat treatment of Rusfer. Through EDS and EBSD analysis, the microstructure of the joint was determined. Shear strength of the as-joined composition was measured as 127 ± 20 MPa. The joint endured 200 thermocycles in the temperature range between 300–600 °C, but the fillet regions degraded.

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Investigation of microstructure and deuterium retention in the reduced activation tungsten-steel brazed joint

Gurova,

Bachurina,

Kozlov

et al. 2023

J Mater Sci

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A Ti-Fe-Sn thin film assembly for joining tungsten and reduced activation ferritic-martensitic steels

Cited by 24 publications

References 21 publications

Overview of the Mechanical Properties of Tungsten/Steel Brazed Joints for the DEMO Fusion Reactor

Overview of the Mechanical Properties of Tungsten/Steel Brazed Joints for the DEMO Fusion Reactor

Brazing Tungsten/Tantalum/RAFM Steel Joint for DEMO by Fully Reduced Activation Brazing Alloy 48Ti-48Zr-4Be

Investigation of microstructure and deuterium retention in the reduced activation tungsten-steel brazed joint

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