Microstructural and mechanical properties of Cu–Ti plates bonded through explosive welding process

Kahraman, Nizamettin; Gülenç, Behçet

doi:10.1016/j.jmatprotec.2005.02.264

Cited by 142 publications

(47 citation statements)

References 13 publications

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“…It is interesting to point out that intermetallic phases did not occur at the weld interfaces. This finding was -consistent with the previous reports [6,[17][18][19]. It may be because the impact velocity of the hump is relatively low compared with the explosive welding, the heat resulting from the impact energy is also relatively small.…”

Section: Microstructuresupporting

confidence: 92%

“…Similar results were also reported by Vivek et al [9]. Besides, the increase of deformation in the interface may also result in increased hardness near the weld interface of the spot welded Ti/Cu joints [6]. From Figure 8, sharp weld interfaces also can be observed clearly.…”

Section: Microstructuresupporting

confidence: 87%

“…The occurrence of this phenomenon may be because plastic deformation increased in the weld interface with the increase of pulse energy. Kahraman and Gülenç [6] found similar phenomenon in explosive welding of copper plates to titanium plates. They stated that plastic deformation increased in the weld interface with the increase of explosive energy, leading to the increase of wave length and amplitude.…”

Section: Microstructurementioning

confidence: 67%

“…It also may be the reason for the increase of failure load. In addition, a large wave amplitude formed at high pulse energy can improve the effect of interlocking between two metal surfaces, which may enhance the tensile strength [6]. It was also noticed from Figure 11 that curve "a" and curve "b" had the same trend.…”

Section: Lap Shearing Testmentioning

confidence: 75%

“…However, fusion welding and brazing welding are not suitable for joining Ti to Cu because brittle Ti-Cu intermetallic compounds (IMCs) are easily formed [3][4][5], which can seriously cause the mechanical properties of the Ti/Cu joint to deteriorate. Therefore, several kinds of welding techniques, such as explosive welding [6], friction welding [7], diffusion welding [8], and vaporizing foil actuator welding [9] were presented as methods for joining Ti to Cu plates. In recent years, with the rapid development of microelectronics and medical industries, joining of thin Ti foil to Cu foil may have a wide application prospect.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Investigation on a Novel Laser Impact Spot Welding

Liu

Gao

Zhang

et al. 2016

Metals

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Abstract:In this paper a novel laser impact spot welding (LISW) method is described, in which a hump was formed on the flyer plate on the intended welding spot location by local pre-forming. When the flyer and base plates were placed together to perform welding, the two plates kept in contact over their entire surfaces except at the hump, where a local air gap was enough to guarantee the impact velocity and collision angle to achieve spot welding using laser pulse energy. The presented approach was implemented to join thin titanium foils to copper foils under low laser energy system. Joints with regular shapes were obtained. The microstructure in the weld interface was studied with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). It was found that the jetting occurred at the central region of the weld spots due to oblique impact. Wave features were observed in the weld interfaces. The impact energy was found to have significant influence on the wave's characteristics. Moreover, SEM images and EDS analysis did not show apparent element diffusion across the weld interface. Besides, the lap shearing test was used to characterize the mechanical properties of the spot welded joints.

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Section: Microstructuresupporting

confidence: 92%

Section: Microstructuresupporting

confidence: 87%

Section: Microstructurementioning

confidence: 67%

Section: Lap Shearing Testmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigation on a Novel Laser Impact Spot Welding

Liu

Gao

Zhang

et al. 2016

Metals

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Interdiffusion Studies between Ti‐5Ta‐2Nb Alloy and 304L Austenitic Stainless Steel Joined by Explosive Cladding Process

Sudha¹,

Prasanthi²,

Saroja³

et al. 2012

T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization

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Effect of Heterogeneous Ti Layers on Mechanical Properties of Cu/Ti Laminated Sheets Prepared by Accumulative Roll Bonding

Zhang

et al. 2022

Physica Status Solidi (a)

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Laminated metallic sheets have attracted public attention of all kinds due to its potentiality in new applications scenarios. [1] These sheets demonstrate splendid attributes of formalities and functionalities, like ameliorated strength, thermal stability, and the resistant feature to radiation impairment. Cu/Ti laminated sheets that combine the advantages of Ti and Cu have such merits as excellent yield strength (YS), elastic limit, electrical conductivity, ductility, and fatigue resistance. As a novel electrode material, it has developmental prospect in electrolytic extraction, electrochemical industry, current-carrying components, electromagnetic relays, and aerospace devices. [2,3] Up to date, Cu/Ti laminated sheets are usually cultivated by braze welding, [4] diffusion welding, [5] friction welding, [6] and explosive welding. [7] However, the high heat generated has downgraded its overall performance, which can easily cause the forming of unfavorably bonded brittle intermetallic compounds at the interface, thus limiting its application. [8] As the demand for multilayered metallic composites continues to emerge in the market, one of the most promising techniques, accumulative roll bonding (ARB), has been proposed by Saito et al. to produce laminated sheets with excellent interface bonding and better strength. [9,10] This technique can optimize the microstructure of composite foundation of the compensation for defects, with the assistance of huge accumulative strain. Besides, ARB has potential for industrialization due to its continuous procedures and high production rates. [11] In recent years, the ARB technique has been successfully adopted to process laminated sheets like Al/Cu, [12,13] Cu/Nb, [14,15] Ti/Al, [16] and Ni/Ti. [17] However, though the tensile strength of the composites increases as per the continuous ARB processes, the improvement in ductility is minimal. As a matter of fact, heat treatment is usually used to improve the comprehensive mechanical properties of the composites. But the intermetallic compounds produced in the process may reduce the strength of the composite. Recent studies potentiated that designing and fabricating metallic materials with heterogeneous structures can yield an excellent combination of high strength and good ductility. [18][19][20][21] Li et al. [22,23] conducted diffusion welding, cold rolling, and annealing to prepare copper/bronze laminates with better physical properties. They found that the grain size of the copper layer (%26.8 μm) was bigger in contrast to the bronze layer

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Microstructural and mechanical properties of Cu–Ti plates bonded through explosive welding process

Cited by 142 publications

References 13 publications

Investigation on a Novel Laser Impact Spot Welding

Investigation on a Novel Laser Impact Spot Welding

Interdiffusion Studies between Ti‐5Ta‐2Nb Alloy and 304L Austenitic Stainless Steel Joined by Explosive Cladding Process

Effect of Heterogeneous Ti Layers on Mechanical Properties of Cu/Ti Laminated Sheets Prepared by Accumulative Roll Bonding

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