Development of rapidly quenched brazing foils to join tungsten alloys with ferritic steel

Kalin, B. A.; Fedotov, V. T.; Sevrjukov, O.N.; Moeslang, A.; Rohde, Magnus

doi:10.1016/j.jnucmat.2004.04.170

Cited by 41 publications

(29 citation statements)

References 9 publications

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“…The presence of these residual stresses is widely known and has been discussed in detail in previous research [2,11]. These residual stresses cannot be eliminated by stress relief due to the dissimilar materials used.…”

Section: Residual Stresses Due To Joint Manufacturementioning

confidence: 98%

“…A fracture mechanics based approach has been developed by Seki [14] to estimate the fatigue crack propagation life of small defects in a brazed layer, however, this does not consider the scenario where cracks initiate in the parent materials where it is known to occur [2,15]. You [6] proposed using the approach detailed in ASME III [17] to predict life of either of the parent materials and Carter [18] detailed a method for predicting fatigue lives of brazed joints in heat exchangers.…”

Section: Previous Work On the Modelling And Fatigue Of Dissimilar Bramentioning

confidence: 99%

“…One of the joining technologies currently being developed is high temperature brazing [2,3]. Due to differences in material properties between tungsten and EURO-FER97, high stresses can occur as a result of the joining process in addition to the thermal and mechanical loading.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The challenges in predicting the fatigue life of dissimilar brazed joints and initial finite element results for a tungsten to EUROFER97 steel brazed joint

Hamilton¹,

Robbie²,

Wood³

et al. 2011

Fusion Engineering and Design

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This paper summarises the challenges in accurately predicting stress states in dissimilar brazed joints and presents initial results from a finite element analysis of a tungsten to EUROFER97 brazed joint. The residual stresses due to joint manufacture are presented and differences in stress distribution due to thermal and mechanical loading highlighted. The results from this analysis correlate well to experimental results from previous research however further validation is required. The challenges in developing fatigue assessment procedures for dissimilar brazed joints are also discussed. These fatigue assessment procedures are introduced and a validation strategy for such procedures is proposed

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Section: Residual Stresses Due To Joint Manufacturementioning

confidence: 98%

Section: Previous Work On the Modelling And Fatigue Of Dissimilar Bramentioning

confidence: 99%

See 1 more Smart Citation

The challenges in predicting the fatigue life of dissimilar brazed joints and initial finite element results for a tungsten to EUROFER97 steel brazed joint

Hamilton¹,

Robbie²,

Wood³

et al. 2011

Fusion Engineering and Design

View full text Add to dashboard Cite

show abstract

“…: +86-0511-84401184; fax: +86-0511-84407381; e-mail address: xczsdu@gmail.com ing mechanical properties of the brazed joint of W-Cu and stainless steel. Now considerable interest has been generated in brazing of W metal and W-Cu composite with amorphous filler metals [7][8][9][10][11][12]. Researchers from the Moscow Institute of Engineering and Physics have researched the bonding mechanism of dissimilar materials in brazing W alloy and steel with amorphous filler metals of Ni-based, Ti-based and Fe-based [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of brazing clearance on microstructure and properties of W-Cu/1Cr18Ni9 steel brazed joint with Ni-Cr-Si-B amorphous filler metal

Xia¹,

Yang²,

Zou³

et al. 2016

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W-Cu composite and 1Cr18Ni9 steel were brazed with Ni-based amorphous filler metal in a vacuum furnace. Four-point bending strength, fracture morphology, microstructure and elements distribution were studied by a series of standard methods. Then the influence of brazing clearance on microstructure and properties of the brazed joint were analyzed and discussed. Results indicated that, within the scope of the selected parameters, bending strength of the brazed joint increased significantly as reducing the brazing clearance. While the brazing clearance controlled to be 20 µm, the four-point bending strength performed the largest value, up to 333 MPa. The joint fracture showed a typical ductile fracture characteristics. Microstructure of the brazing seam was mainly composed of γ-Ni solid solution, W-Ni solid solution, CrB, and a part of eutectic phases of Ni3Si and Ni3B. The microstructure of brazed joint with brazing clearance 20 µm was more uniform and more stable. Microstructure and element of brazed joint almost transformed into single-phase solid solution. Meanwhile, micro holes disappeared and a number of brittle phases reduced, which provided well plastic reserves for the brazed joint.K e y w o r d s : W-Cu composite, brazing clearance, microstructure, fracture, bending strength

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“…The suitable brazing materials result in brittle brazing layers and thus a joint with a very low toughness [4]. In addition, they need a process temperature usually much higher than the recrystallisation temperature of the materials to be joined [4,5]. To avoid a substantial change in the microstructure and properties of the materials to be joined, the solid state diffusion bonding is considered.…”

Section: Introductionmentioning

confidence: 99%

Investigation of tungsten/EUROFER97 diffusion bonding using Nb interlayer

Widodo

Aktaa

2011

Fusion Engineering and Design

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Development of rapidly quenched brazing foils to join tungsten alloys with ferritic steel

Cited by 41 publications

References 9 publications

The challenges in predicting the fatigue life of dissimilar brazed joints and initial finite element results for a tungsten to EUROFER97 steel brazed joint

The challenges in predicting the fatigue life of dissimilar brazed joints and initial finite element results for a tungsten to EUROFER97 steel brazed joint

Influence of brazing clearance on microstructure and properties of W-Cu/1Cr18Ni9 steel brazed joint with Ni-Cr-Si-B amorphous filler metal

Investigation of tungsten/EUROFER97 diffusion bonding using Nb interlayer

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