Pitting behavior of a bulk Ni–18wt.% Fe nanocrystalline alloy

Steward, R.V.; Fan, G. J.; Fu, Liangjie; Green, B.A.; Liaw, Peter K.; Wang, G.; Buchanan, R. A.

doi:10.1016/j.corsci.2007.11.020

Cited by 9 publications

(7 citation statements)

References 12 publications

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“…While it is known that the primary passivation potential of binary Ni-Fe alloys generally increase with increasing Ni concentration [24], comparatively little study has been conducted on the corrosion behavior of these alloys in nanocrystalline form. A study on the pitting behavior of nanocrystalline Ni-18%Fe found that it was more susceptible to pitting corrosion after significant grain growth had occurred during annealing [25]. Another study comparing the corrosion resistance of electrodeposited nanocrystalline Ni-W and Ni-Fe-W alloys reported poor corrosion resistance for the ternary alloy because of preferential dissolution of Fe [26].…”

Section: Resultsmentioning

confidence: 99%

Mesoscale Compositionally Modulated Nanocrystalline Ni‐Fe Electrodeposits for Nanopatterning Applications

Egberts

Hibbard

2008

Journal of Nanomaterials

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A considerable range of surface nanostructures can be fabricated by the selective dissolution of elements or phases from metallic alloys. Selectively etched electrodeposited multilayers may find useful application in optoelectronic and MEMS devices. One issue with electrodeposited multilayers is that the fine-scale multilayer structure can often exhibit significant waviness if the band layer spacing is on the same order of magnitude as the grain size. In the present study, the mean grain size was reduced to below 10 nm in a compositionally modulated Ni-Fe alloy. Preferential etching on the electroform cross-section resulted in highly uniform and directional surface channels. The evolution of this nanopatterned surface morphology was characterized by atomic force microscopy and directional roughness parameters were obtained.

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Section: Resultsmentioning

confidence: 99%

Mesoscale Compositionally Modulated Nanocrystalline Ni‐Fe Electrodeposits for Nanopatterning Applications

Egberts

Hibbard

2008

Journal of Nanomaterials

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“…However, comparing the as-received NC alloys in small grain sizes with the annealed alloys in large grain sizes, the former was found to be less sensitive to localized corrosion [5]. Annealing produced numerous electronic defects in a passive film, and detrimental chloride species were likely to be deposited in these defects, producing conditions crucial to the corrosion behavior of the Ni-Fe NC alloy.…”

Section: Introductionmentioning

confidence: 91%

“…The saturated intensity of magnetization increases with the increase in grain size [3]. However, the relation between the grain size and corrosion resistance of Fe-Ni thin films remains unclear [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Influence of microstructure on the corrosion resistance of Fe–44Ni thin films

Lü

Liu

2016

Int J Miner Metall Mater

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An Fe-44Ni nanocrystalline (NC) alloy thin film was prepared through electrodeposition. The relation between the microstructure and corrosion behavior of the NC film was investigated using electrochemical methods and chemical analysis approaches. The results show that the NC film is composed of a face-centered cubic phase (γ-(Fe,Ni)) and a body-centered cubic phase (α-(Fe,Ni)) when it is annealed at temperatures less than 400°C. The corrosion resistance increases with the increase in grain size, and the corresponding corrosion process is controlled by oxygen reduction. The NC films annealed at 500°C and 600°C do not exhibit the same pattern, although their grain sizes are considerably large. This result is attributed to the existence of an anodic phase, Fe 0.947 Ni 0.054 , in these films. Under this condition, the related corrosion process is synthetically controlled by anodic dissolution and depolarization.

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“…In the 3.5% NaCl solution, hydrogen evolution corrosion occurred, which is characterized by easy dissolution of the Fe-Ni alloy. Cl − can exacerbate corrosion, but grain size refinement hinders the penetration energy of Cl − and OH − plasma, which can reduce the soluble ions [24,25]. Another character is that large number of hydroxides and oxides (Fe 3 O 4 , Fe 2 O 3 , NiO, etc.)…”

Section: Corrosion Behaviormentioning

confidence: 99%

A Study on Laser Enhanced Electrodeposition for Preparation Fe-Ni Alloy

Zhang

Wang

et al. 2020

Materials

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In this paper, a method of laser enhanced electrodeposition is used for preparation of Fe-Ni alloy, which exhibits a significant advantage in fabrication of alloys. The effect of laser energy on Fe-Ni alloy electrodeposition by the manner of reciprocating scanning is studied. Results show that laser irradiation can improve the surface morphology, micro-structure and mechanical properties of Fe-Ni alloy. The results are useful for the development of a new method to synthesize Fe-Ni alloy with better properties.

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Pitting behavior of a bulk Ni–18wt.% Fe nanocrystalline alloy

Cited by 9 publications

References 12 publications

Mesoscale Compositionally Modulated Nanocrystalline Ni‐Fe Electrodeposits for Nanopatterning Applications

Mesoscale Compositionally Modulated Nanocrystalline Ni‐Fe Electrodeposits for Nanopatterning Applications

Influence of microstructure on the corrosion resistance of Fe–44Ni thin films

A Study on Laser Enhanced Electrodeposition for Preparation Fe-Ni Alloy

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