Influence of Welding Speed, Voltage, and Beam current on the microstructure and mechanical properties of Electron Beam-Welded Titanium radial joints

Sandhya, Varimadugu; Sastry, M. Naga Phani; Reddy, K. Hemachandra

doi:10.1016/j.matpr.2022.04.808

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…With the development of ocean equipment and high-performance ships, there is an increasing demand for many marine applications. Electron beam welding (EBW), which possesses many advantages such as high energy density and welding speed, large fusion depth, a small heat-affected zone, and good protection effects, is a desirable choice for precision welding of titanium alloys or other active and difficult-to-dissolve metals [4,5]. However, the microstructure between the joint and the base metal is inconsistent.…”

Section: Introductionmentioning

confidence: 99%

Effects of Micro-Arc Oxidation Surface Treatment on the Corrosion Resistance of Ti-6Al-4V Electron-Beam-Welded Joints

Mei

et al. 2023

Metals

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Micro-arc oxidation (MAO) is performed on Ti-6Al-4V electron-beam-welded joints, and the microstructure, phase composition, and corrosion resistance of the joint and surface coating are investigated systematically by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), as well as electrochemical and stress corrosion analyses. SEM analyses revealed that the joint undergoes a phase transformation. The coating morphology of the joint and base materials is similar, but the joint coating is denser and thicker. XRD analyses recognize the rutile and anatase phases in the coating. Polarization and electrochemical impedance spectroscopy (EIS) corrosion tests reveal that the MAO treatment results in a decrease of two orders of magnitude in the corrosion current density of the welded joint and an increment of corrosion resistance. Stress corrosion evaluation reveals that a dense layer is exposed to protect the joint after long-term exposure to a high-stress corrosion environment. No stress corrosion-induced cracking or defects are observed in the joints, indicating the corrosion resistance of the joint has significantly improved.

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Section: Introductionmentioning

confidence: 99%

Effects of Micro-Arc Oxidation Surface Treatment on the Corrosion Resistance of Ti-6Al-4V Electron-Beam-Welded Joints

Mei

et al. 2023

Metals

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“…Zhang et al studied the gas tungsten arc welding (GTAW) waveform influences on the weld formation, microstructure, and mechanical properties of AZ31B Mg alloy [ 3 ]. Sandhya et al investigated the influence of welding speed, voltage, and beam current on the microstructure and mechanical properties of electron-beam-welded titanium radial joints [ 4 ]. Xu et al conducted a numerical investigation on the influence of current waveform on droplet transfer in pulsed gas metal arc welding (GMAW) [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Butt Gap on Stress Distribution and Carrying Capacity of X80 Pipeline Girth Weld

Zhu

Jia²,

et al. 2022

Materials

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An unstable assembly gap is detrimental to the formation and performance of the pipeline butt girth weld joint. Therefore, a numerical model of an 18.4 mm-thick X80 pipeline girth weld by a homogeneous body heat source was established to investigate the effect of the butt gap on the joint temperature and stress field, and carrying capacity. The accuracy of the simulation results was verified by measuring the welding thermal cycle with a thermocouple. The investigation results showed that the weld pool, heat-affected zone (HAZ) width, and maximum circumferential stress of the joint rose with the increase in the butt gap. The tensile stress unfavorable to the joint quality was mainly distributed in the weld metal and partial HAZ, and the distribution areas gradually expanded as the gap increased. The Von Mises stress peak value of the joint appeared in the order of 3 mm > 2 mm > 1 mm > 0 mm gap, reaching the maximum of 467.3 MPa (3 mm gap). This variation trend is directly related to the improvement in welding heat input with increasing butt gaps. The maximum Von Mises stress of the joint was positively correlated with the carrying capacity of the pipeline, which diminished as the butt gap enlarged. The pipeline carrying capacity reached 17.8 MPa for the joint with no butt gap, and dropped to 13.1 MPa for the joint with a 3 mm gap. The relationship between the carrying capacity (P) and butt gap (C) was described by P = −0.125C2 − 1.135C + 17.715, through which the pipeline carrying capacity with other butt gaps can be predicted.

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Prototype Technology Decision Support System for the EBW Process

Кукарцев

Myrugin

Stupin

et al. 2023

Lecture Notes in Networks and Systems

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Influence of Welding Speed, Voltage, and Beam current on the microstructure and mechanical properties of Electron Beam-Welded Titanium radial joints

Cited by 6 publications

References 11 publications

Effects of Micro-Arc Oxidation Surface Treatment on the Corrosion Resistance of Ti-6Al-4V Electron-Beam-Welded Joints

Effects of Micro-Arc Oxidation Surface Treatment on the Corrosion Resistance of Ti-6Al-4V Electron-Beam-Welded Joints

Effect of Butt Gap on Stress Distribution and Carrying Capacity of X80 Pipeline Girth Weld

Prototype Technology Decision Support System for the EBW Process

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