Interface and Bonding Strength of Explosively Welded T2/DT4C Laminate

2013 ◽  
Vol 785-786 ◽  
pp. 1051-1054
Author(s):  
Peng Liu ◽  
Jian Ping Jiang ◽  
Bai Lian Sun
Keyword(s):  
Bonding Strength ◽  
Pure Iron ◽  
Explosive Welding ◽  
Shear Test ◽  
Copper Plate ◽  
Strength Test ◽  
Bonding Interface ◽  
Interfacial Zone ◽  
Iron Plate ◽  
Element Diffusion

T2 red copper plate and DT4C electrical pure iron plate were cladded by explosive welding. Microcosmic analysis and bonding strength of the bonding interface were also studied. Results indicate that the welded zone appears periodical wavy metallurgical interface and obvious element diffusion occurs in the interfacial zone. In addition, no separation happens after the bonding strength test and tension-shear test and the broken zone takes place in the T2 red copper part of the samples, indicating that the bonding strength of the welded interface can get no less than the strength of T2 red copper.

scholarly journals The Interfacial Characterization and Performance of Cu/Al-Conductive Heads Processed by Explosion Welding, Cold Pressure Welding, and Solid-Liquid Casting

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 237 ◽  
Author(s):  
Yanni Wei ◽  
Hui Li ◽  
Fu Sun ◽  
Juntao Zou
Keyword(s):  
Corrosion Resistance ◽  
Bonding Strength ◽  
Explosive Welding ◽  
Slag Inclusion ◽  
Explosion Welding ◽  
Bonding Interface ◽  
Pressure Welding ◽  
And Performance ◽  
Solid Liquid ◽  
Cold Pressure

The Cu/Al composites conductive head is widely used in hydrometallurgy as the core component of cathode plate. Its conductive properties directly affect the power consumption, and the bonding strength and corrosion resistance determine the conductive head service life. The Cu/Al conductive head prepared by explosion welding, cold pressure welding, and solid-liquid casting methods were investigated in this paper. The interface microstructure and compositions were examined by scanning electron microscope and X-ray energy dispersive spectrometry. The bonding strength, interface conductivity, and the corrosion resistance of three types of joints were characterized. The Cu/Al bonding interface produced by explosive welding presented a wavy-like morphology with typical defects and many of brittle compounds. A micro-interlocking effect was caused by the sawtooth structures on the cold pressure welding interface, and there was no typical metallurgical reaction on the interface. The Cu/Al bonding interface prepared by solid-liquid casting consisted mainly of an Al-Cu eutectic microstructure (Al2Cu+Al) and partial white slag inclusion. The thickness of the interface transition layer was about 200–250 µm, with defects such as holes, cracks, and unwelded areas. The conductivity, interfacial bonding strength, and corrosion resistance of the conductive head prepared by explosive welding were superior to the other two.

Study on Fabrication and Bonding Interface of Explosive Welded Steel/Aluminum/Steel Composite Plate

2017 ◽  
Vol 753 ◽  
pp. 188-193
Author(s):  
Nan Zhou ◽  
Jing Jiang ◽  
Kui Tang ◽  
Song Ze Tang
Keyword(s):  
Vickers Hardness ◽  
Bonding Strength ◽  
Composite Plate ◽  
Explosive Welding ◽  
Composite Plates ◽  
Bonding Interface ◽  
Dissimilar Metal ◽  
Metal Plates ◽  
Steel Composite ◽  
Layer Steel

In order to study the explosive welding experimental fabrication technology of multi-layer dissimilar metal plates and the quality of bonding interface, three-layer steel/aluminum/steel composite plates with different thickness distributions were fabricated using the method of explosive welding when their total thicknesses remained same (total 5 mm). Then the stereomicroscope was adopted to investigate the shape of bonding interface and the formed mechanism was also analyzed. In addition, the micro-hardness (Vickers hardness, Hv) distribution of the composite plate in the thickness direction was studied by a low load Vickers hardness tester. The results show that the method of explosive welding can be used to fabricate three-layer steel/aluminum/steel dissimilar metal plates successfully. Meanwhile, wave bonding interface was formed between steel fly plate and aluminum middle plate, straight bonding interface was formed between aluminum middle plate and steel base plate. The maximum Hv value of welded plate appears at the bonding interface with high bonding strength. The bonding strength of both two kinds of welded interface was considered sufficient, which offers experimental support for the explosive welding of multi-layer plates.

Formation of bonding interface in explosive welding—a molecular dynamics approach

2019 ◽  
Vol 31 (41) ◽  
pp. 415403 ◽  
Author(s):  
Jianrui Feng ◽  
Kaida Dai ◽  
Qiang Zhou ◽  
Jing Xie ◽  
Rongjie Yang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Explosive Welding ◽  
Bonding Interface

Mesoscopic damage evolution on bonding interface and its influence on macroscopic performance deterioration of reinforced concrete member

2019 ◽  
Vol 08 (02) ◽  
pp. 1950005
Author(s):  
Ying Wang ◽  
Yuqian Zheng ◽  
Xuan Wang
Keyword(s):  
Reinforced Concrete ◽  
Bonding Strength ◽  
Element Model ◽  
Bonding Interface ◽  
Interfacial Damage ◽  
Concrete Member ◽  
Steel Bar ◽  
Reinforced Concrete Member ◽  
Bonding Property ◽  
Performance Deterioration

Slip or debonding of bonding interface is the key cause of the performance degradation or failure of the reinforced concrete (RC) member. In this paper, based on Monte Carlo method, a mesoscopic finite element model composed of mortar, coarse aggregate and steel rebar was established to consider the mesoscopic damage on the bonding interface and its influence on macroscopic performance deterioration of RC specimen. The results show that the simulation results fit well with experimental data. Higher initial interfacial damage results in lower bonding strength and smaller final displacement. Higher mortar modulus could greatly improve the initial bonding property and bonding strength, but slightly increase the final damage. Compared with the RC specimen model with plain steel bar, the model with deformed steel bar shows a longer duration of nonlinear increase for drawing force and lower bonding strength. When confinement is applied, the coalescence of damage zones is prevented due to the effect of thread. Therefore, the application of confinement could increase the bonding strength and the initial bonding property.

Bonding strength test method assessment for Cross-Laminated Timber Derived Stressed-Skin Panels (CLT SSP)

2017 ◽  
Vol 50 (4) ◽  
Author(s):  
Emilio Luengo ◽  
Eva Hermoso ◽  
Juan Carlos Cabrero ◽  
Francisco Arriaga
Keyword(s):  
Bonding Strength ◽  
Strength Test ◽  
Test Method ◽  
Cross Laminated Timber ◽  
Skin Panels

scholarly journals Microstructural, Mechanical and Corrosion Investigations of Ship Steel-Aluminum Bimetal Composites Produced by Explosive Welding

Metals ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 544 ◽  
Author(s):  
Yakup Kaya
Keyword(s):  
Explosive Welding ◽  
Energy Dispersive Spectrometry ◽  
Salt Spray ◽  
Composite Plates ◽  
Bonding Interface ◽  
Steel Plates ◽  
Neutral Salt ◽  
Aluminum Plates ◽  
Bimetal Composite

In this study, explosive welding was used in the cladding of aluminum plates to ship steel plates at different explosive ratios. Ship steel-aluminum bimetal composite plates were manufactured and the influence of the explosive ratio on the cladded bonding interface was examined. Optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectrometry (EDS) studies were employed for the characterization of the bonding interface of the manufactured ship steel-aluminum bimetal composites. Tensile-shear, notch impact toughness, bending and twisting tests, and microhardness studies were implemented to determine the mechanical features of the bimetal composite materials. In addition, neutral salt spray (NSS) tests were performed in order to examine the corrosion behavior of the bimetal composites.

Microstructure of Bonding Interface in Explosively Welded Metal/Ceramic Clad

2010 ◽  
Vol 638-642 ◽  
pp. 3775-3780 ◽  
Author(s):  
Seiichiro Ii ◽  
Chihiro Iwamoto ◽  
Shinobu Satonaka ◽  
Kazuyuki Hokamoto ◽  
Masahiro Fujita
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Silicon Nitride ◽  
Electron Diffraction ◽  
Electron Diffraction Pattern ◽  
Explosive Welding ◽  
Bonding Interface ◽  
X Ray ◽  
Transmission Electron ◽  
Metal Ceramic

Bonding interface in aluminum (Al) and silicon nitride (Si3N4) clad fabricated by explosive welding has been investigated by transmission electron microscopy (TEM). The nanocrystalline region was clearly observed at the interface between Al and Si3N4. Electron diffraction pattern and energy dispersive X-ray spectroscopy (EDS) measurements across the interface revealed that this nanocrystalline region consist of the only aluminum.

Finite-Element Analysis of a Measuring Model for FeAlCrBSiNb Coating Bonding Strength of Revolution Body

2014 ◽  
Vol 577 ◽  
pp. 722-725
Author(s):  
Jia Ying Zhang ◽  
Gang Zhao ◽  
Ye Wang Sun ◽  
Jun Wei Yang ◽  
Huai Bin Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Concentration ◽  
Stress Distribution ◽  
Bonding Strength ◽  
Bonding Interface ◽  
Shearing Stress ◽  
Measuring Process ◽  
Element Analysis

The stress distribution of the coating interface in measuring bonding strength of revolution body coating was emulated. The stress curves of coating bonding interface were obtained. The abscission characteristics of coating were analyzed. It showed that Stress concentration occurred in the symmetric centre of the coating bonding interface. The coating peeled off from the symmetric centre to both sides of the sample interface in the measuring process. Avoiding shearing stress was a method to promote the measuring test of bonding strength of revolution body coating.

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