The corrosion behavior of Ni–P deposits with high phosphorous contents in brine media

Bai, Allen; Chuang, Po-Yu; Hu, Chi‐Chang

doi:10.1016/s0254-0584(03)00193-7

Cited by 98 publications

(48 citation statements)

References 21 publications

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“…As a result, the corrosion potentials are shifted to a positive potential in corrosion testing. But the corrosion rate of the coated samples is generally determined by the corrosion current density (i corr ) and corrosion resistance (R corr ), which is mainly related to the microstructure of the coatings [29]. Table 2 clearly shows that the oxide coatings formed in waveforms B and C exhibit much lower corrosion current density and higher corrosion resistance than that formed in waveform A, indicating that the corrosion resistance of the oxide coatings increases when the applied current density transformed from waveform A to waveforms B and C. However, the superior corrosion protection provides by the oxide coating formed in waveform B, which can be attributed to this coating has the most intact and homogeneous microstructure.…”

Section: Corrosion Resistance Of Microarc Oxidation Coatingsmentioning

confidence: 99%

Improvement of corrosion properties of microarc oxidation coating on magnesium alloy by optimizing current density parameters

Liang

Hao

2007

Applied Surface Science

105

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Section: Corrosion Resistance Of Microarc Oxidation Coatingsmentioning

confidence: 99%

Improvement of corrosion properties of microarc oxidation coating on magnesium alloy by optimizing current density parameters

Liang

Hao

2007

Applied Surface Science

105

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“…Bai and his co-workers [6] studied the corrosion behavior of Ni-P deposits using the brine-fog test in 5 wt pct NaCl solution at 37°C for 24 hours. The weight loss decreased for the specimen with higher P contents.…”

Section: Introductionmentioning

confidence: 99%

Study of the Corrosion Behavior of Nanocrystalline Ni-P Electrodeposited Coating

Lee

Wuu

Lee

et al. 2009

Metall Mater Trans A

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The corrosion behavior of electrodeposited Ni-P coating in 5 pct (in weight) NaCl solution has been studied. The microstructure of the Ni-P electrodeposit displayed a layered structure composed of nanocrystalline grains revealed by transmission electron microscopy (TEM). With the increase in polarization potential and bath temperature, the corrosion rate as well as the weight loss was significantly increased. Under observation by a field-emission scanning electron microscope (FESEM), the pitting evolved into larger sizes with a diameter of approximately 30 mu m as the temperature and potential were increased to 50 A degrees C and 600 mV(SCE), respectively. Cracks and delamination among the layered structure were found inside the deepened corrosion pit. The increase in surface P content and the trace of the formation of phosphate were also observed by using X-ray photoelectron spectroscopy (XPS) analysis

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“…To determine this, both EDX spectroscopy and XRD were used. EDX analysis proved that the deposits contained ∼18 at.% P. Based on the results reported in the literature on electroless Ni-P deposits, this amount of phosphorus can produce amorphous deposits [18][19][20].…”

Section: Geometric and Crystallographic Orientation Effectsmentioning

confidence: 65%

Part 1—Structure-Sensitivity of Nanoparticle Catalysts: Relating Current Theories to Experimental Data

2011

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This work investigates the current theories that have been used to explain the particle size effect on electrocatalytic activity. In particular, this work focuses on electronic structure effects, geometric shape effects, crystallographic orientation effects, support structure effects, and the concept of territory theory. To investigate these theories, gold and nickel-phosphorus nanowire arrays have been used as model systems for electrocatalytic testing of the hydrogen evolution reaction in basic medium. In this study, the current particle size effect theories cannot adequately account for the observed structure-sensitive trends that are exhibited in the aforementioned systems. This work systematically looks at each of these different theories and discusses new possible factors that could serve as a foundation for a new theory on structure-sensitive catalysis.

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The corrosion behavior of Ni–P deposits with high phosphorous contents in brine media

Cited by 98 publications

References 21 publications

Improvement of corrosion properties of microarc oxidation coating on magnesium alloy by optimizing current density parameters

Improvement of corrosion properties of microarc oxidation coating on magnesium alloy by optimizing current density parameters

Study of the Corrosion Behavior of Nanocrystalline Ni-P Electrodeposited Coating

Part 1—Structure-Sensitivity of Nanoparticle Catalysts: Relating Current Theories to Experimental Data

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