Study on element diffusion behaviour of vacuum-furnace brazing 316 L/BNi-2 joints based on Boltzmann-Matano model

Published on Nov 1, 2021in Welding in The World2.103
· DOI :10.1007/S40194-021-01185-1
Guo-Yan Zhou (ECUST: East China University of Science and Technology)
Source
Abstract
📖 Papers frequently viewed together
References25
Newest
In this paper, dissimilar joining of NbSS/Nb5Si3 composites to GH5188 Co-based superalloy was performed by using two commercial Ni-based brazing filler alloys, BNi-2 and BNi-5 fillers. The interfacial microstructures of the brazed joints were investigated by scanning electron microscope equipped with an X-ray energy dispersive spectrometer. Three-point bending test was also conducted. When brazed with BNi-2 filler alloy at 1020°C for 15 min, typical reaction products across the brazing seam coul...
Source
#1Wolfgang Tillmann (Technical University of Dortmund)H-Index: 27
#2L. WojarskiH-Index: 7
Last. C. TimmerH-Index: 1
view all 5 authors...
The eutectic high entropy alloy Nb0.73CoCrFeNi2.1 was manufactured by means of arc smelting and the obtained ingots were cut into 300-μm-thick foils, which were used as filler alloys to braze Crofer 22 APU to Hf-metallized yttria-stabilized zirconia (3YSZ). The brazing process was conducted in a vacuum furnace at 1200 °C for 5 min at a vacuum of 4.3·10–4 mbar. In order to minimize the intense diffusion and erosion of the steel substrate, a heating and cooling rate of 50 K/min was applied. Sound ...
Source
#1Ehsan Baharzadeh (IAU: Islamic Azad University)H-Index: 2
#2Morteza Shamanian (IUT: Isfahan University of Technology)H-Index: 37
Last. Hossein Mostaan (Arak: Arak University)H-Index: 11
view all 4 authors...
In this study, dissimilar joining between SAF 2205 duplex stainless steel and Inconel X-750 superalloy produced by TLP process was investigated. This process was done at temperature of 1100 °C for different bonding times of 1, 15, 30, 45 and 60 min. The effect of different bonding times on the microstructure and mechanical properties of the welded samples was studied. Microstructure of the samples was analyzed by optical microscopy and scanning electron microscopy equipped with energy-dispersive...
Source
#1Fan ZhouH-Index: 1
#2Wenchun JiangH-Index: 1
Last. and Daikun YangH-Index: 1
view all 5 authors...
Source
#1Jiangtao Xiong (NPU: Northwestern Polytechnical University)H-Index: 19
#2Lin Yuan (NPU: Northwestern Polytechnical University)H-Index: 4
Last. Jinglong Li (NPU: Northwestern Polytechnical University)H-Index: 29
view all 5 authors...
The nickel-based superalloy GH4099 was diffusion-bonded with 2–10 μm thick pure nickel interlayer. The joint microstructure was characterized by scanning electron microscopy, electron probe micro-analyzer and electron backscattered diffraction; the joint mechanical properties were evaluated by nanoindentation, tensile and Charpy impact tests. It was observed that with the reduction in interlayer thickness, element distribution and hardness across the joining interface became more homogeneous and...
Source
#1Dong Yong ParkH-Index: 7
#2Sun Kyu Lee (HBNU: Hanbat National University)H-Index: 2
Last. Yong Jun Oh (HBNU: Hanbat National University)H-Index: 18
view all 3 authors...
Quantitative analysis was performed via image processing to identify the relationship between the tensile strength and the thickness of the CrxBy phase layer at the interface of brazed 304 stainless steel with Ni-based filler metal (MBF20). The experimental design was based on the Taguchi method to determine the relative contributions of the processing conditions, including the brazing temperature, heating rate, holding time, and filler metal thickness. The CrxBy phase at the brazement interface...
Source
#1Chaoyang Sun (USTB: University of Science and Technology Beijing)H-Index: 14
The bimetallic bonding mechanisms including macroscopic deformation, microstructure evolution and element diffusion were investigated by using bimetallic hot compression tests of X65/316L. An element concentration diffusion model with a variable coefficient was proposed to determine the element concentration in the metallurgical bonding transition zone (MBTZ). Diffusion distance, strain, deformation temperature and holding time were taken into account in the model. A finite element model of the ...
Source
#1Majid Pouranvari (Sharif University of Technology)H-Index: 31
#2Aliakbar Ekrami (Sharif University of Technology)H-Index: 26
Last. Amir Hossein Kokabi (Sharif University of Technology)H-Index: 47
view all 3 authors...
Abstract The microstructure of a transient liquid phase (TLP) bonded nickel base superalloy using B-containing filler metal after completion of isothermal solidification can usually be described by a eutectic-free joint centerline with extensive in-situ boride precipitation in the diffusion affected zone which in turn can affect the joint properties. Therefore, designing a proper post-bond heat treatment is needed to produce a robust joint. This paper addresses the microstructure evolution mecha...
Source
#1Dong Yong ParkH-Index: 7
#2Sun Kyu Lee (HBNU: Hanbat National University)H-Index: 2
Last. Yong Jun Oh (HBNU: Hanbat National University)H-Index: 3
view all 6 authors...
Abstract This work presents an image processing method to identify the distribution of Cr x B y in a brazed joint of SUS304/MBF20/SUS304. Although the chemical compositions at designated locations on such joints can be measured through electron-probe microanalysis (EPMA) and transmission electron microscopy (TEM), determining the overall distribution of Cr x B y and quantitatively describing this phase is difficult. Therefore, an image-processing algorithm was developed using material-specific i...
Source
#1Bartek Wierzba (Rzeszów University of Technology)H-Index: 13
#2Wojciech Skibiński (AGH University of Science and Technology)H-Index: 4
The complete understanding of the phenomenological process related to the position of the Matano and Kirkendall plane in multicomponent system is still lacking. In this paper some aspects of Matano and lattice plane migration are studied by means of numerical simulations. New approach to calculate intrinsic diffusion coefficients in binary Ni–Au system and ternary Cu–Fe–Ni and Co–Fe–Ni is presented. Diffusivities were calculated using modified Boltzmann–Matano method. Self diffusion coefficients...
Source
Cited By0
Newest
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.