Effect of laser spot overlap on the mechanical properties and corrosion resistance of laser-assisted electrodeposited Ni-based coatings

Yang, Shuai; Xu, Kun; Zhang, Zhaoyang; Wu, Yucheng; Dai, Xueren; Zhu, Hao; Liu, Yang

doi:10.1016/j.matchemphys.2022.126830

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…In addition, a Ni−Co−W coating was deposited using LECD, and it was found that laser irradiation increased W content. 19 This research aimed to determine how laser irradiation strengthens the corrosion resistance of ECD Ni−Co−W alloy coatings. The effects of W content and laser irradiation on the corrosion resistance of the coatings were investigated separately.…”

Section: ■ Introductionmentioning

confidence: 99%

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Investigation of the Enhancement Mechanism of Electrochemically Deposited Ni–Co–W Coatings via Laser Irradiation: Effect of W Contents on Corrosion Resistance

Yang

Zhang

et al. 2023

Langmuir

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Ni−Co−W is an alloy with excellent overall performance and wide application prospects. Electrochemical deposition of Ni−Co−W alloys is currently the most promising process for replacing hexavalent chromium plating. Variations in the W content of the Ni−Co−W coating significantly affect its surface morphology, internal structure, and mechanical properties. Considering the numerous defects with conventional electrochemical deposition, a laser was introduced to enhance the quality and rate of deposition. Using a multienergy composite field, the deposition technique enhanced various properties at room temperature. Ni−Co−W alloy coatings were fabricated through electrochemical deposition and laser electrochemical deposition using electrolytes containing Na 2 WO 4 •2H 2 O at concentrations of 12, 15, 18, and 24 g/L in this investigation. This study aimed to examine how laser irradiation strengthens the corrosion resistance of the coatings. The corrosion resistance could be enhanced with an initial W content increase, but the corrosion resistance did not depend entirely on the W content. Variations in the W content of the electrochemically deposited coatings affected the surface morphology, residual internal stresses, and crystal structure, changing the corrosion resistance. In contrast, the laser electrochemical deposition coating was caused by the combined effect of the W content and laser irradiation (concentration of <18 g/L). Laser electrochemical deposition of the Ni−Co−W coating resulted in a higher W content than electrochemical deposition (≥3.5%), improved the residual internal stresses, and refined the grain size of the coating, resulting in better corrosion resistance (corrosion rate decreased by 74% and R ct increased by 109.1% at most).

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Section: ■ Introductionmentioning

confidence: 99%

“…Laser electrochemical deposition (LECD) is an effective composite processing method that improves surface quality and overall performance. In addition, a Ni–Co–W coating was deposited using LECD, and it was found that laser irradiation increased W content …”

Section: Introductionmentioning

confidence: 99%

Investigation of the Enhancement Mechanism of Electrochemically Deposited Ni–Co–W Coatings via Laser Irradiation: Effect of W Contents on Corrosion Resistance

Yang

Zhang

et al. 2023

Langmuir

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“…In [5], the authors established a laser weapon power density model based on the analysis of the transmission characteristics of the laser in the atmosphere and the tracking errors. In [6], the authors take the effects of atmospheric transmissions and the far-field spot area of the laser system into consideration, simulating the effectiveness of a 10,000-watt high-energy laser system by calculating the atmospheric transmittance [7,8], the quality of the laser beam after being affected by atmospheric turbulence [9][10][11][12][13][14][15], the spot area of the target in the far field, the power density of the target in the far field [16][17][18][19][20], and the cumulative energy density [21,22], which gives the optimal intercept radius and the damage probability of the 10,000-watt highenergy laser system in different atmospheric environments. In [23], the authors proposed a systematic averaging method from the physical mechanism of the formation of the long-period averaged power intensity distribution, modelling the long-period averaged power intensity distribution under the effect of tracking and aiming errors and beam drift.…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Dynamic Damage Probability Modelling for Laser Systems

Shi,

Sun,

Xie

et al. 2023

Mathematics

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The paper proposes a method that analyses the dynamic damage probability of laser systems to address the shortcomings of the quantitative model for the damage probability of laser systems. Firstly, the far-field energy density distribution model is constructed according to the power spectrum inversion method. Then, the instantaneous on-target spot power density distribution is equivalently portrayed based on the combination of the far-field power density and the missile target characteristics. Next, the instantaneous on-target spot is combined with the tracking and aiming error to obtain the probability distribution of the energy density of the long-period on-target spot. Finally, the temperature probability distribution is obtained by analyzing the relation between the target energy density and the temperature of the inner wall of the warhead. Consequently, the damage probability was calculated. The simulation shows that there is a unique maximum damage probability when the target is flying in a straight line and the laser system strikes the missile sideways. The method can provide support for the shooting timing of high-energy laser systems.

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Study on the preparation mechanism and property analysis of a localized Au coating by laser-induced cyanide-free electroplating

Xu,

Tang,

Leng

et al. 2024

J Mater Sci: Mater Electron

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Effect of laser spot overlap on the mechanical properties and corrosion resistance of laser-assisted electrodeposited Ni-based coatings

Cited by 6 publications

References 30 publications

Investigation of the Enhancement Mechanism of Electrochemically Deposited Ni–Co–W Coatings via Laser Irradiation: Effect of W Contents on Corrosion Resistance

Investigation of the Enhancement Mechanism of Electrochemically Deposited Ni–Co–W Coatings via Laser Irradiation: Effect of W Contents on Corrosion Resistance

Simulation Analysis of Dynamic Damage Probability Modelling for Laser Systems

Study on the preparation mechanism and property analysis of a localized Au coating by laser-induced cyanide-free electroplating

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