Experimental and numerical investigation of microstructure and evolution of TiNi Alloy/Q235 steel interfaces prepared by explosive welding

Yang, Mingshun; Chen, Daiguo; Zhou, Hen; Xu, Jian; Ma, Honghao; Shen, Zhaowu; Zhang, Bingyuan; Tian, Jie

doi:10.1016/j.jmrt.2021.11.044

Cited by 17 publications

(3 citation statements)

References 38 publications

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“…Explosive welding is a metallurgical process that uses the shock wave generated by the explosion of explosives to subject the metal to a high-speed impact and bond it in a short period of time. Of course, there are many factors that can affect the quality of welding, such as the falling speed of the flyer plate, static angle, bending angle, burst speed of the explosive, the thickness and nature of the flyer plate and substrate [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…The development of industry also places higher desire on explosive welding: (1) revealing failure mechanisms of composite materials at the welded interface; (2) improving the bonding strength of welded composite materials. Presently, most studies on explosive welding are focused on the wave morphology, bonding strength, and microstructure at the interface of two welded dissimilar metals [10][11][12]. The bonding interface of explosive welding is often wavy, and the periodic fluctuation of shear stress is considered to be an important factor [13].…”

Section: Introductionmentioning

confidence: 99%

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Interfacial Microstructure and Shear Behavior of the Copper/Q235 Steel/Copper Block Fabricated by Explosive Welding

Zhao

et al. 2023

Coatings

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A copper/Q235 steel/copper composite block with excellent bonding interfaces was prepared by explosive welding which was a promising technique to fabricate laminates. The microstructure and mechanical properties of the interfaces were investigated via the tensile-shear test, optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), and electron back-scattered diffraction (EBSD). The results showed that the shear strength of the upper-interface and lower-interfaces of the welded copper/steel are higher than ~235 MPa and ~222 MPa, respectively. The specimens failed fully within the copper and not at the bonding interface. It was attributed to: (1) no cavities and cracks at the interface; (2) the interface formed a metallurgical bonding including numerous ultra-fine grains (UFGs) which can significantly improve the plastic deformation coordination at the interface and inhibit the generation of micro-cracks.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interfacial Microstructure and Shear Behavior of the Copper/Q235 Steel/Copper Block Fabricated by Explosive Welding

Zhao

et al. 2023

Coatings

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“…Welding techniques are widely used to fabricate Cu/SS composite strips. The thermal properties of Cu and SS are signi cantly different, which hinders the joining of the materials in conventional welding processes (e.g., friction welding, ultrasonic welding, and laser bonding) [5]. The large differences in the thermal properties could result in hot cracks, abnormal heat ow, and high residual stresses in the welds [6].…”

Section: Introductionmentioning

confidence: 99%

Research on fabricating Cu/stainless steel composite thin strips by two-pass cold roll-bonding with intermediate annealing

Niu,

Ding,

Zhang

et al. 2023

Int J Adv Manuf Technol

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Roll-bonding is feasible to fabricate T2 copper (Cu)/ Stainless steel (SS) composite thin trips, which have great potential in micromanufacturing, robotics, aerospace, and other applications. However, the effective bonding of Cu and SS could be hindered by limited diffusion of the elements and uncoordinated deformation of the metal matrices. In this study, Cu/SS composite strips with 0.24mm thickness were prepared by the twopass cold rolling process with intermediate annealing at 400 ~ 1000℃. The in uences of the intermediate annealing process on the tensile and peeling strength were investigated. Finite element simulation and microstructure evaluation were carried out to analyze the deformation behaviors and bonding mechanisms of the strips. The results indicate that the deformation coordination in the second-pass rolling and the bonding strength were improved by appropriate intermediate annealing processes. The difference in the deformation resistance between Cu and SS became the lowest by intermediate annealing at 1000℃, while the deformation of Cu and SS was severely uncoordinated by annealing at 600℃. The peel strength and elongation of the strips annealed at 1000℃ were 11.65 ± 0.7N/mm and 34.8 ± 1.3% after the second-pass rolling, which were 79.23% and 6.64 times higher than the strips manufactured without intermediate annealing, respectively. In this work, Cu/SS thin strips with high bond strength and ductility were successfully manufactured by appropriate intermediate annealing process, and the bonding mechanisms were systematically discussed.Highlights les.docx

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Insight on Interfacial Microstructure and Corrosion Characteristics of Mg/Al Explosive Welded Composite Plates

Lu,

Li,

Liang

et al. 2024

Adv Eng Mater

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Interfacial corrosion performance is crucial to the reliability of Mg/Al explosively welded composite plates. Nevertheless, more understanding is required concerning such interfacial corrosion. In this work, a combination of numerical simulation and experimental investigation was used to clarify the microstructure evolutions of AZ80‐Mg alloy/1060‐Al explosively welded composite plate. The formation of interfacial wave structure and the thermodynamic state were insighted through numerical simulation, which further enhanced the correlation between the interfacial microstructural heterogeneities and the interfacial corrosion characteristics. Galvanic corrosion was produced by the significant potential difference between the AZ80‐Mg and 1060‐Al, with multiple micro‐galvanic couples in the vortex zone. The corrosion occurred near the interface and gradually advanced away from the interface. After 1 h, the composite plates exhibited severe corrosion with deep pits on the Mg side, while the Al side was less affected. Within the vortex, however, the Mg‐rich region underwent little corrosion, whereas the Al‐rich region underwent significant corrosion, attributed to the increase in pH value caused by the Mg corrosion.

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Experimental and numerical investigation of microstructure and evolution of TiNi Alloy/Q235 steel interfaces prepared by explosive welding

Cited by 17 publications

References 38 publications

Interfacial Microstructure and Shear Behavior of the Copper/Q235 Steel/Copper Block Fabricated by Explosive Welding

Interfacial Microstructure and Shear Behavior of the Copper/Q235 Steel/Copper Block Fabricated by Explosive Welding

Research on fabricating Cu/stainless steel composite thin strips by two-pass cold roll-bonding with intermediate annealing

Insight on Interfacial Microstructure and Corrosion Characteristics of Mg/Al Explosive Welded Composite Plates

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