Investigation on Wire Electrochemical Micro Machining of Ni-based Metallic Glass

Meng, Lingzhi; Zeng, Yongbin; Zhu, Daiyin

doi:10.1016/j.electacta.2017.03.045

Cited by 42 publications

(28 citation statements)

References 27 publications

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“…Moreover, there is currently no review that unites MGNs synthesized from different approaches (top-down and bottom-up) with conventional electrochemical reactions. To date, a wide range of BMG-forming alloys have been developed, including Zr-, [18] Fe-, [19] Cu-, [20] Ni-, [21] Ti-, [22] Mg-, [23] Pd-, [24] Au-, [25] and Pt-based compositions. Finally, as the first progress report on the metallic glass based electrocatalysts, we will also highlight some of the challenges that need to be addressed toward future progress in this field.…”

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confidence: 99%

“…Finally, as the first progress report on the metallic glass based electrocatalysts, we will also highlight some of the challenges that need to be addressed toward future progress in this field.BMGs are those metallic glasses (MGs) that can be made in 'bulk' scale with good glass forming abilities, [17] representing a versatile platform for many applications. To date, a wide range of BMG-forming alloys have been developed, including Zr-, [18] Fe-, [19] Cu-, [20] Ni-, [21] Ti-, [22] Mg-, [23] Pd-, [24] Au-, [25] and Pt-based compositions. [26] Moreover, the increased disorder brought by the higher degree of multinary systems is believed to contribute to improving the glass formation.…”

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confidence: 99%

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Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Doubek

McMillon‐Brown

et al. 2018

Advanced Materials

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transformers [2] and load bearing applications. [3] In the last few decades, the study of nanomaterials has become a central focus in nanoscience and nanotechnology. [4] In fact, many studies have shown that with reduction in size, nanomaterials display novel electrical, mechanical, chemical and optical properties, which are largely believed to be the result of surface and quantum confinement effects. [4,5] Remarkably, this trend has found traction in the metallic glass field where metallic glasses nanostructures (MGNs) demonstrate an important role in many applications such as light harvesting, [6] photovoltaic, [7] biomedical, [8] magneto-optical, [9] organic synthesis, [10] lithium-ion batteries [11] and electrocatalysis. [12] Recently, MGNs are receiving increased attention due to their distinguished performance, such as high activity and long term stability in electrocatalytic reactions. [12,13] Although several review papers have already covered the topic of nanopatterning of bulk metallic glasses (BMGs), [14][15][16] the correlation between recent synthetic methods and electrocatalytic applications for MGNs has not been thoroughly addressed. Moreover, there is currently no review that unites MGNs synthesized from different approaches (top-down and bottom-up) with conventional electrochemical reactions. Therefore, in this review our mission is to: 1) present a focused perspective on the latest fabrication techniques of MGNs toward the pursuit of novel electrocatalysts and electrodes; 2) highlight recent advances in computational screening and predictions that could be applied toward new metallic glass electrocatalyst discovery; and 3) report distinct advancements in electrocatalytic applications related to MGNs by creating a comprehensive discussion for commonly employed kinetic parameters and their connection with the unique material structure. Finally, as the first progress report on the metallic glass based electrocatalysts, we will also highlight some of the challenges that need to be addressed toward future progress in this field.BMGs are those metallic glasses (MGs) that can be made in 'bulk' scale with good glass forming abilities, [17] representing a versatile platform for many applications. To date, a wide range of BMG-forming alloys have been developed, including Zr-, [18] Fe-, [19] Cu-, [20] Ni-, [21] Ti-, [22] Mg-, [23] Pd-, [24] Au-, [25] and Pt-based compositions. [26] Moreover, the increased disorder brought by the higher degree of multinary systems is believed to contribute to improving the glass formation. [27] The evolution to multicomponent alloys of the most recent MG studies has also made them natural candidates for catalysis. The amorphous multinary Recent advances in metallic glass nanostructures (MGNs) are reported, covering a wide array of synthesis strategies, computational discovery, and design solutions that provide insight into distinct electrocatalytic applications. A brief introduction to the development and unique features of MGNs with an overview of top-down and bottom-up sy...

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confidence: 99%

mentioning

confidence: 99%

Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Doubek

McMillon‐Brown

et al. 2018

Advanced Materials

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“…The material removing rate in the ECMM can be adjusted by controlling the applied current. A wide range of hard yet conductive materials such as bulk metallic glasses [ 4 ], titanium alloys [ 5 ], superalloys [ 6 ], carbide-metals [ 7 , 8 ] can be effectively machined by ECMM. Several configurations of ECMM process such as jet electrochemical machining [ 9 ], scanning micro-electrochemical flow cell based ECMM [ 10 ], wire electrochemical micromachining [ 11 ], a tool-based hybrid laser-ECM [ 12 ] and through-mask electrochemical micro-machining [ 13 ] have been introduced to generate surface microstructures.…”

Section: Introductionmentioning

confidence: 99%

Fast Fabrication of Complex Surficial Micro-Features Using Sequential Lithography and Jet Electrochemical Machining

Saxena

Guo

et al. 2020

Micromachines

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This paper presents fabrication of complex surficial micro-features employing a cross-innovative hybrid process inspired from lithography and Jet-ECM. The process is referred here as mask electrolyte jet machining (MEJM). MEJM is a non-contact machining process which combines high resolution of lithography and greater flexibility of Jet-ECM. It is a non-contact process which can fabricate variety of microstructures on difficult-to-machine materials without need of expensive tooling. The presented work demonstrates the process performance of this technology by statistical analysis and multivariate kernel density estimation (KDE) based on probabilistic density function. Micro-letters are fabricated as an example of complex surficial structure comprising of multiple intersecting, straight and curved grooves. The processing response is characterized in terms of geometrical size, similarity ratio, and cumulative shape deviation. Experimental results demonstrated that micro letters with good repeatability (minimum SD of shape error ratio 0.297%) and shape accuracy (minimum shape error of 0.039%) can be fabricated with this technology. The results suggest MEJM could be a promising technology for batch manufacturing of surface microstructures with high productivity.

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“…It employs the dissolution of anodic metals and thereby bypasses the limitations of the alloy's mechanical properties [1], [2]. Compared to conventional machining techniques, ECM offers several advantages, such as high metal removal rate, reduced tool wear, lower residual stress, and excellent ability to cast complex shapes [3]- [5]. ECM has garnered considerable attention in the past decades due to its potential applications in electrochemical micromachining of silicon [6] or gallium nitride [7], [8] as well as other applications such as MEMS [9], sensors, photonics [10], or superalloy fabrication.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Dissolution Behavior of Nickel-Based Hastelloy X Superalloy at Low Current Densities

Yin

Zhang

et al. 2020

IEEE Access

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Electrochemical machining (ECM) is a proven processing technique for fabricating difficultto-cut nickel-based superalloys with complex shapes using the principle of anodic dissolution. However, the metallic surface is susceptible to stray corrosion under conditions of low current density, which increases the difficulty of using ECM on nickel-based superalloy such as Hastelloy X (HX). In this study the electrochemical dissolution behavior of wrought HX at low current density was systematically analyzed. The results revealed that M 23 C 6 carbides were irregularly distributed on the grain boundaries. The polarization curves and open-circuit potential measurements showed that an appropriate temperature (35 • C) and concentration (10 wt.%) aided in the formation of efficient and stable dissolution in NaNO 3 solution. The findings also revealed that selective corrosion occurred preferentially on the grain boundary or near the M 23 C 6 precipitations after passivation film polarization. After careful investigation of the different-stage dissolution microstructures and the solid black block-shape products, M 23 C 6 precipitation was found to play a key role in the dissolution of HX alloy at low current density. A qualitative model was established to demonstrate the electrochemical dissolution behavior of wrought HX alloy in NaNO 3 solution. This model offers a new insight into the suppression of stray corrosion of Ni-based superalloys in aerospace applications.

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Investigation on Wire Electrochemical Micro Machining of Ni-based Metallic Glass

Cited by 42 publications

References 27 publications

Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Fast Fabrication of Complex Surficial Micro-Features Using Sequential Lithography and Jet Electrochemical Machining

Electrochemical Dissolution Behavior of Nickel-Based Hastelloy X Superalloy at Low Current Densities

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