Detailed analysis of surface asperity deformation mechanism in diffusion bonding of steel hollow structural components

Zhang, C.; Li, Hengyun; Li, M.Q.

doi:10.1016/j.apsusc.2016.03.039

Cited by 36 publications

(5 citation statements)

References 35 publications

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“…According to the results in 3.2, three parameters of holding time, holding pressure, and bonding temperature could affect the shear bond strength of the joints. During holding at a certain pressure, the creep/superplasticity induced and accelerated grain boundary migration [26]. In these experiments, there were voids along grain boundaries when the holding time was short (Fig.…”

Section: Analysis Of Technological Parameters During the Diffusion Bonding Processmentioning

confidence: 76%

Research on superplastic diffusion bonding of 2205 duplex stainless steel

Gao¹,

Li²,

Jin³

et al. 2020

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Aiming at the requirement of lightweight and corrosion resistance, superplastic diffusion bonding of 2205 duplex stainless steel was studied. The results showed that during the pretreatment procedure, with the increase of pre-solution temperature from 1050 to 1350 • C, cold roll reduction from 50 to 85 %, the joint shear strength was improved after bonded under the same condition. The pretreatment of solution at 1350 • C and cold rolled by 85 % was a better choice for the diffusion bonding of 2205 duplex stainless steel. During the bonding process, the critical value of holding time, holding pressure, and bonding temperature were determined as 5 min, 10 MPa, and 1000 • C, before which the joint shear strength was fast increased and after which it was slowly increased or even decreased. Due to the σ-phase dispersed along with the interface after bonded, post-solution treatment was considered, and after post-solution at 1050 • C for 10 min, the best joint shear strength of 685 MPa was obtained.

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Section: Analysis Of Technological Parameters During the Diffusion Bonding Processmentioning

confidence: 76%

Research on superplastic diffusion bonding of 2205 duplex stainless steel

Gao¹,

Li²,

Jin³

et al. 2020

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“…The formation of new grain boundaries indicates the occurrence of metallurgical bonds in the original interface region. In contrast, the concave areas of the interface become voids because of insufficient contact [30]. When the strain is low, as shown in figure 5(a), residual round voids and straight interfaces typically form after deformation.…”

Section: Discussionmentioning

confidence: 99%

Investigation on the microstructure and mechanical properties of large-tube forging manufactured by additive forging

Wang,

Zhang,

et al. 2024

Mater. Res. Express

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Large-tube forgings were formed using nine layers of continuous-casting billet made from 15CrNi3MoV alloy steel via additive forging. The interfacial microstructural evolution under different hot-compression bonding temperatures and strains was investigated using optical microscopy, scanning electron microscopy, and electron backscatter diffraction. The tensile properties of the hot-compression-bonded and tube-forged samples were also evaluated. The results showed that as the hot-compression bonding temperature and strain increased, the bonding interface gradually disappeared and the voids at the bonding interface closed. Finally, the interface was replaced with recrystallised grains. The tensile properties of the hot-compression-bonded samples at different temperatures and strains were identical. The tensile properties of the interface and base samples of the tube forging were comparable, and the fracture morphologies were consistent. The fracture position of the large tensile sample with a length of 1000 mm containing three original interfaces is the base, indicating the complete metallurgical bonding of the forging

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“…It is widely used in aerospace, ships, vehicles, petrochemical industry, construction medical devices, and other felds. Because of its light weight, high strength, high stifness, and low consumption, it is used to meet the development trend and requirements of lightweight, high performance, and complexity of industrial components [1,2].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation on Optimization of Process Parameters for Free Bending of Metal Tubes

Zhang

Jin

et al. 2022

Mathematical Problems in Engineering

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Three-dimensional free bending is a new tube forming technology with continuous variable curvature. In order to improve the forming quality of tube, this paper studies the principle of three-dimensional free forming system and the numerical calculation of bending moment in detail, and it uses the finite element simulation to model the mechanism in the bending process. The simulation model is used to simulate the forming process of copper tube, and the influence of key process parameters on the forming process is analyzed,the shape of the inner cavity of the bending die and the gap between the tube and the bending die are studied, the distance between the bending die and the guide column is studied, the axial feed rate on the forming quality of tubular bending parts has also been studied. The optimum process parameters were determined by finite element simulation and analysis.

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Detailed analysis of surface asperity deformation mechanism in diffusion bonding of steel hollow structural components

Cited by 36 publications

References 35 publications

Research on superplastic diffusion bonding of 2205 duplex stainless steel

Research on superplastic diffusion bonding of 2205 duplex stainless steel

Investigation on the microstructure and mechanical properties of large-tube forging manufactured by additive forging

Numerical Simulation on Optimization of Process Parameters for Free Bending of Metal Tubes

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