High-temperature brazing of molybdenum to 12Cr18Ni10Ti steel with the CTEMET 1301 rapidly quenched nickel brazing alloy

Ivannikov, A. A.; Sevryukov, O. N.; Vertkov, А.V.; Penyaz, Milena; Misnikov, V. E.; Kochnov, Yu. O.; Morokhov, P. V.; Lyublinskiy, I. E.

doi:10.1080/09507116.2017.1318501

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…We manufactured the following joint: Rusfer/TiZr4Be/Ta/TiZr4Be/W. STEMET brazing alloys are widely used in the nuclear, air and automotive industries [32][33][34][35][36]. TiZr4Be alloy has a good glass forming ability (GFA) produced by melt spinning [37], and a high GFA makes it possible to produce flexible foil by this spinning technology.…”

Section: Methodsmentioning

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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Section: Methodsmentioning

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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“…In this case, some parameters influence the stability of the results obtained: assembly accuracy, the size of the gaps, test equipment, and many others. To improve the quality of brazed lapped tubular joints, a threaded fit is used [24].…”

Section: Mechanical Properties Of Dissimilar Brazed Joints Of Molybdenumstainless Steelmentioning

confidence: 99%

Vacuum Brazing of Dissimilar Joints Mo-SS with Cu-Mn-Ni Brazing Filler Metal

Svitlana¹

2021

Welding - Modern Topics

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The complexity of joining dissimilar materials, such as molybdenum-stainless steel, is due to the difference in thermal coefficients of linear expansion and low oxidation resistance of molybdenum. In this connection, brazing of this pair of materials should be performed in vacuum. The selection of chemical composition of brazing filler metal and its melting temperature range is very important. This work presents the results of metallographic and micro X-Ray spectral analysis investigations of dissimilar brazed joints of molybdenum-stainless steel and shows the features of the formation of brazed seams at application of brazing filler metals of Cu-Mn-Ni(Me) system. It is found that at brazed seam, crystallize reaction layers form the side of molybdenum. One layer is based on molybdenum, enriched in iron and silicon. The second layer is based on iron, enriched in silicon. At brazing temperature of 1100°C, base metal dispersion occurs, which can be avoided at temperature lowering to 1084°C. The structure of solid solution with a small amount of iron-enriched dispersed phase crystallizes in the central zone of brazed seams. The brazed joints produced with application of brazing filler metal based on Cu-Mn-Ni system are characterized by maximum values of shear strength.

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Vacuum brazing of Mo to 316L stainless steel using BNi-2 paste and Cu interlayer

Min

Mao

Deng

et al. 2020

Vacuum

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High-temperature brazing of molybdenum to 12Cr18Ni10Ti steel with the CTEMET 1301 rapidly quenched nickel brazing alloy

Cited by 4 publications

References 1 publication

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

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

Vacuum Brazing of Dissimilar Joints Mo-SS with Cu-Mn-Ni Brazing Filler Metal

Vacuum brazing of Mo to 316L stainless steel using BNi-2 paste and Cu interlayer

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