Electrochemical Dissolution Behavior of the Nickel-Based Cast Superalloy K423A in NaNO3 Solution

Ge, Ying Fei; Zhu, Zengwei; Wang, Dengyong

doi:10.1016/j.electacta.2017.09.046

Cited by 74 publications

(22 citation statements)

References 30 publications

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“…Table 5 shows that the maximum MRR occurred at 5000 rpm, 6 V, and 5 µm, whereas the minimum Ra and δ occurred at 1000 rpm and 3 V. The impact of different factors followed the sequence of U > A X > A Z > n. Table 6 shows that U and A X always exhibited a positive effect on the MRR, Ra, and δ, whereas A Z and n had no significant impact on the MRR and δ individually. The result is reasonable since the vibration enhanced the EC/DM action and increased the cutting depth, reducing the height difference [31]. Verification experiments using the optimizing parameters (1000 rpm, 3 V, and 5 µm) were conducted on 40 SiCp/Al, and the MRR, Ra, and δ were 0.76 mm 3 /min, 3.35 µm, and 5.84%, respectively.…”

Section: Optimal Experimentsmentioning

confidence: 76%

Study on Generating Machining Performance of Two-Dimensional Ultrasonic Vibration-Composited Electrolysis/Electro-Discharge Technology for MMCs

Chen

Zhu

2022

Materials

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Ultrasonic vibration-composited electrolysis/electro-discharge machining technology (UE/DM) is effective for machining particulate-reinforced metal matrix composites (MMCs). However, the vibration of the tool or workpiece suitable for holes limits the application of UE/DM. To improve the generating machining efficiency and quality of flat and curved surfaces, in this study, we implemented two-dimensional ultrasonic vibration into UE/DM and constructed a novel method named two-dimensional ultrasonic vibration-composited electrolysis/electro-discharge machining (2UE/DM). The influence of vibration on the performance of 2UE/DM compared to other process technologies was studied, and an orthogonal experiment was designed to optimize the parameters. The results indicated that the materiel remove rate (MRR) mainly increased via voltage and tool vibration. The change current was responsible for the MRR in the process. Spindle speed and workpiece vibration were not dominant factors affecting the MRR; the spindle speed and tool and workpiece vibration, which reduced the height difference between a ridge and crater caused by abrasive grinding, were responsible for surface roughness (Ra) and form precision (δ). Additionally, the optimized parameters of 1000 rpm, 3 V, and 5 um were conducted on MMCs of 40 SiCp/Al and achieved the maximum MRR and minimum Ra and δ of 0.76 mm3/min, 3.35 um, and 5.84%, respectively. This study’s findings provide valuable process parameters for improving machining efficiency and quality for MMCs of 2UE/DM.

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Section: Optimal Experimentsmentioning

confidence: 76%

Study on Generating Machining Performance of Two-Dimensional Ultrasonic Vibration-Composited Electrolysis/Electro-Discharge Technology for MMCs

Chen

Zhu

2022

Materials

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“…As liquids, we prepared water, 5 and 10 wt% NaCl solutions, 5 and 10 wt% NaNO 3 solutions, 5 and 10 wt% Cu(NO 3 ) 2 solutions and 5 and 10 wt% CuSO 4 solutions. NaCl solution and NaNO 3 solution are often used for ECM [ 23 , 24 , 36 , 37 ], and Cu(NO 3 ) 2 solution and CuSO 4 solution are used for electrochemical deposition of copper [ 32 , 33 , 34 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

Effects of Electrolyte on Laser-Induced Periodic Surface Structures with Picosecond Laser Pulses

Kodama

Natsu

2021

Nanomaterials

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Short-pulsed laser-induced periodic surface structures (SPLIPSSs) have the possibility to control tribology, wettability and biocompatibility. Nevertheless, the optimal structure depends on each functionality, which has not been clarified. The hybrid process with a short-pulsed laser and electrochemical machining (SPLECM) is, then, proposed to fabricate micro/nano hybrid structures and to modify the surface composition for providing high functionalities with material surfaces. Electrochemical machining is a well-established micro-elution and deposition method with noncontact between a workpiece and a tool. In this study, the effects of electrolytes on SPLIPSSs were investigated experimentally by the picosecond laser irradiation on 304 stainless steel substrates in various electrolytes. The geometry of SPLIPSSs depended on the types and the concentration of electrolytes. In the case of copper nitrate solution and copper sulfate solution, LIPSSs and spheroidization of copper were obtained. This study demonstrated the possibility of SPLECM to fabricate micro/nano structures and to control surface composition.

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“…The optimized flow field could promote participation of the tool electrode end in the electrochemical reaction and then improve the electric-field intensity; additionally, it also reduced air mixing and improved the stability of the flow field. TB6 titanium alloy has serious passivation issues during ECM [25,26] and previous studies on the growth and fracture mechanism of the passive film were carried out under the condition that the workpiece remained stationary or moved at a low speed [27,28]. In electrolyte jet ECT, the workpiece rotates at a high speed and the workpiece surface experiences rapid cycling from the machining area to the non-machining area.…”

Section: Introductionmentioning

confidence: 99%

Flow field simulation and experimental investigation on macro electrolyte jet electrochemical turning of TB6 titanium alloy

Liu

Qiu

2022

Int J Adv Manuf Technol

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Electrolyte jet electrochemical turning is an effective method to realize high-quality machining of titanium alloy rotating components; however, minimal research has been carried out in this field. This is because it is difficult to control the machining flow field, which leads to poor machining surface quality. In this work, numerical simulations were used to optimize the machining flow field and reduce the proportion of gas that mixed into the machining area. This can promote participation of the tool electrode tip in the electrochemical reaction and improve the machining efficiency. The effectiveness of the optimized machining flow field for jet electrochemical turning was verified experimentally. The results showed that all three kinds of revolving TB6 titanium alloy samples with different structures could maintain the original contour shape, with a contour error <1% and a machined surface roughness reaching Ra 2.414 μm. The results demonstrate the application potential of the jet electrochemical turning process.

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Electrochemical Dissolution Behavior of the Nickel-Based Cast Superalloy K423A in NaNO3 Solution

Cited by 74 publications

References 30 publications

Study on Generating Machining Performance of Two-Dimensional Ultrasonic Vibration-Composited Electrolysis/Electro-Discharge Technology for MMCs

Study on Generating Machining Performance of Two-Dimensional Ultrasonic Vibration-Composited Electrolysis/Electro-Discharge Technology for MMCs

Effects of Electrolyte on Laser-Induced Periodic Surface Structures with Picosecond Laser Pulses

Flow field simulation and experimental investigation on macro electrolyte jet electrochemical turning of TB6 titanium alloy

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