Pulse Electroforming of Nanocrystalline Ni-Mn Alloy

Yang, Jiangkai; Zhu, Daiyin; Qu, Ningsong; Lei, Weining

doi:10.4028/www.scientific.net/kem.259-260.596

Cited by 8 publications

(10 citation statements)

References 10 publications

(15 reference statements)

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“…21,22 For instance, the chemical composition has not been affected by frequency in Ni-Co system. 22 In the case of Ni-Mn, similar behaviour has been observed by Yang et al 23 In Ni-W system, 1.5 wt-% increase in W content is seen by increasing the frequency from 10 to 1000 Hz. 24 In Ni-Fe coating, the effect of frequency has been investigated by Sanaty-Zadeh et al 25 and reported that increasing the frequency from 0.5 to 1000 Hz has not affected the Fe content.…”

Section: Microstructure and Chemical Compositionsupporting

confidence: 80%

“…22 In the case of Ni–Mn, similar behaviour has been observed by Yang et al . 23 In Ni–W system, 1.5 wt-% increase in W content is seen by increasing the frequency from 10 to 1000 Hz. 24 In Ni–Fe coating, the effect of frequency has been investigated by Sanaty-Zadeh et al .…”

Section: Resultsmentioning

confidence: 99%

“…24 Moreover, the effect of grain size has been observed in Ni-Mn coatings. 23 Figure 6b presents the results related to the microhardness of the MF coatings. In these coatings, it is expected that the fine grain layers be deposited in free surface due to the continuous variation of frequency from 50 to 400 Hz.…”

Section: Microhardnessmentioning

confidence: 99%

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Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings

Torabinejad

Aliofkhazraei

Rouhaghdam

et al. 2017

Surface Engineering

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In this study the Ni-Fe-Mn/Al 2 O 3 functionally graded (FG) coatings with thickness of 70 μm were fabricated onto mild steel substrates using pulse electrodeposition technique. Two types of FG coatings were deposited; the first type was synthesised through decreasing the pulse duty cycle gradually at a constant frequency and the second type was electrodeposited by increasing the frequency gradually at a constant duty cycle. The influences of pulse parameters including duty cycle and frequency on the microstructure, composition, microhardness corrosion and wear behaviour of electrodeposited FG nanocomposite coatings were evaluated. In the first type of coatings, Mn content was gradually decreased, also Fe and alumina contents changed in opposite directions. In the second type, chemical composition has not been affected through frequency alterations. The effect of frequency and duty cycle on the microhardness, corrosion and wear for different FG Ni-Fe-Mn/Al 2 O 3 nanocomposite coatings was investigated.

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Section: Microstructure and Chemical Compositionsupporting

confidence: 80%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings

Torabinejad

Aliofkhazraei

Rouhaghdam

et al. 2017

Surface Engineering

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show abstract

“…As the i avg increases, a higher cathodic polarization can be obtained, and the cathode potential gets more negative [23]. It is a superior condition for deposition of electronegative Mn.…”

Section: Methodsmentioning

confidence: 98%

Ni–Fe–Mn–(nano)Al2O3 Coating with Modulated Composition and Grain Size

Torabinejad

Mahmood

Rouhaghdam

2016

Trans Indian Inst Met

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Composition modulated nanocomposite of NiFe-Mn-Al 2 O 3 coatings were fabricated on mild steel using single bath technique through alternative variation of duty cycle at constant frequency (VD) and repeated alteration of frequency at constant duty cycle (VF). The number of layers was 32 and thickness of each layer was 2.5 lm. The results of microstructure examination by SEM and EDS for VD coatings exhibited that Fe/Al 2 O 3 -rich layers adjacent to Mn rich ones were deposited in a frequent manner. In the case of VF coatings, alternative variation of frequency did not affect the chemical composition of matrix and only changed the content of embedded nanoparticles. The microhardness of Ni-Fe-Mn-Al 2 O 3 multilayers compared to monolithic and multilayer Ni-Fe-Al 2 O 3 of the same thickness was significantly increased because of Mn incorporation into the matrix. The corrosion resistance was found to be better for VD coating in comparison to the VF ones.

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“…While Ni-Mn deposits have been reported with high yield strengths, of which up to 85% can be retained after high temperature annealing, the addition of Mn also increases the residual stress in the deposit. This residual stress problem has been mitigated by pulse plating Ni/Ni-Mn films to create thick structures which have also exhibited increased ductility [30][31][32][33]. LIGA fabricated structures have been used for numerous applications including for scroll pump for miniature mass spectrometers ( Fig.…”

Section: Ligamentioning

confidence: 99%

Electrochemically Fabricated Microelectromechanical Systems/Nanoelectromechanical Systems (MEMS/NEMS)

Hangarter

George²,

Myung

2009

Nanostructure Science and Technology

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Microelectromechanical Systems (MEMS) [1] and its more recent extension Nanoelectromechanical Systems (NEMS) [2] are successful offshoots of the semiconductor revolution, which was the hallmark of the latter half of the previous century [3]. Both MEMS and NEMS have established themselves as successful fields of endeavor in their own right. In fact, it is fair to say that all nonintegrated circuit (IC) technologies are included under the MEMS/NEMS umbrella. Although the vast majority of MEMS/NEMS technologies deal with the design and fabrication of novel sensors and actuators [3], ancillary technologies such as interconnects and packaging form an important part of MEMS and NEMS [4]. In many cases, MEMS/ NEMS also find applications, not as stand-alone devices but as the key enabling subcomponents of otherwise conventionally fabricated systems [2]. This chapter will provide a survey of MEMS/NEMS fabrication and device technologies with particular emphasis on electrochemistry-based fabrication techniques and novel devices/instruments technologies that can be developed using electrochemistry. Electrochemical Fabrication Techniques in MEMS/NEMSElectrochemical fabrication techniques offer tremendous versatility as cost-effective methods to generate MEMS/NEMS materials and structures. The batch processing nature of these methods carried out at near room temperature in ambient pressure, C.M. Hangarter and N.V. Myung ()

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Pulse Electroforming of Nanocrystalline Ni-Mn Alloy

Cited by 8 publications

References 10 publications

Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings

Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings

Ni–Fe–Mn–(nano)Al2O3 Coating with Modulated Composition and Grain Size

Electrochemically Fabricated Microelectromechanical Systems/Nanoelectromechanical Systems (MEMS/NEMS)

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Pulse Electroforming of Nanocrystalline Ni-Mn Alloy

Cited by 8 publications

References 10 publications

Electrodeposition of Ni–Fe–Mn/Al2O3 functionally graded nanocomposite coatings

Electrodeposition of Ni–Fe–Mn/Al2O3 functionally graded nanocomposite coatings

Ni–Fe–Mn–(nano)Al2O3 Coating with Modulated Composition and Grain Size

Electrochemically Fabricated Microelectromechanical Systems/Nanoelectromechanical Systems (MEMS/NEMS)

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Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings

Electrodeposition of Ni–Fe–Mn/Al₂O₃ functionally graded nanocomposite coatings