The effect of surface roughness on the efficiency of the cyclic potentiodynamic passivation (CPP) method in the improvement of general and pitting corrosion resistance of 316LVM stainless steel

Shahryari, Arash; Kamal, Walid; Omanovic, Sasha

doi:10.1016/j.matlet.2008.05.032

Cited by 77 publications

(38 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, Alvarez et al in their work on AE44 magnesium alloy have shown corrosion behaviour consistent with mild steels and opposite to the trend reported in stainless steels [10]. Despite the significant attention that has been paid to the influence of the surface roughness on the pitting corrosion resistance in stainless steels, very little is known of the influence of the surface roughness on the general corrosion resistance [11]. In addition, to the author's best knowledge, there have been no studies on the effect of surface roughness on the corrosion behaviour of nickel and its alloys.…”

Section: Introductionmentioning

confidence: 94%

The effect of different surface topographies on the corrosion behaviour of nickel

Toloei

Stoilov

Northwood

2013

WIT Transactions on Engineering Sciences

View full text Add to dashboard Cite

The electrochemical and corrosion behaviour of a surface is extremely complicated and depends on various chemical, physical and mechanical factors. In this study the effect of different surface roughnesses on the corrosion resistance of nickel in 0.5 M sulphuric acid was investigated. Open circuit potential, corrosion current density, polarization resistance and corrosion rate were measured for surfaces polished with different grits (120, 240, 400, 600 and 1200) of silicon carbide papers. The surface roughness was measured using a profilometry method both before and after corrosion testing. SEM images were taken and compared for all of the samples before and after corrosion tests. The results showed that surface roughness and surface morphology can considerably change corrosion and corrosion rate. A higher corrosion resistance is obtained for surfaces with lower roughnesses. Finally, the results were compared with specimens where a specific surface patterning was obtained using a laser ablation method.

show abstract

Section: Introductionmentioning

confidence: 94%

The effect of different surface topographies on the corrosion behaviour of nickel

Toloei

Stoilov

Northwood

2013

WIT Transactions on Engineering Sciences

View full text Add to dashboard Cite

show abstract

“…Numerous authors [13 -18] dealt with the investigation of the effect of roughness on the pitting corrosion resistance. On the other hand, there is very little available research data of the influence of surface roughness on the uniform corrosion resistance and relation of surface roughness on the electrochemical passivation of stainless steels [19,20].…”

Section: Introductionmentioning

confidence: 99%

Influence of surface texture on electrochemical potential

Alar

Runje

Baršić

2010

Materialwissenschaft Werkst

View full text Add to dashboard Cite

In this Paper potentiodynamic and Tafel (anodic and cathodic) polarization tests were conducted in order to relate the dependence of surface roughness on the resistance to pitting corrosion (pitting potential) of AISI 316 stainless steel in spring water at 20 8C. Furthermore, uniform corrosion resistance of AISI 316 steel was studied. Tests were performed on seven samples that were polished with emery paper with silicon carbide particles of various grits. Using scanning electron microscope qualitative evaluation of surface roughness was done, and roughness parameter Ra was measured using stylus instrument. Achieved results show that with decreasing mean arithmetic deviation of profile investigated surface significantly increases the resistance to pitting potential, and expands the passivation area of the AISI 316 stainless steel in spring water.

show abstract

“…The powder materials of ␣-FeOOH, ␥-FeOOH and ␥-Fe 2 O 3 were mechanically compressed by the load of over 200 kg in order to get smooth surfaces. The flat surface of Fe(OH) 3 was prepared by scribing the surface with a flat plate. The analyzed n and k of main oxides and hydroxides were shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…It shows that water, ␣-FeOOH and ␥-FeOOH were not detected, and ␣-Fe 2 O 3 was not acceptable due to the low temperature treatment of 30 • C, which agrees well with the case of passivation without any oxy-zone treatment. In the case of passivation and subsequent oxy-zone treatment, the wet amorphous hydroxide of Fe(OH) 3 After passivation at 800 mV and the subsequent oxy-zone exposure, the total thickness of the film was found to be shrunk. The result of Fig.…”

Section: Oxy-zone Treatment After Passivation (Pa + O 32 )mentioning

confidence: 99%

“…It is well known that the flat surface is more protective in the case of not only general corrosion [1,2] and pitting corrosion [3] but also in case of corrosion fatigue [4]. In the case of micro-chemical channel [5] with high temperature and high pressure solution, flat surface which is hard to supply corrosion production is more significant for the production of fine chemicals without impurities, because the ratio of surface area to the solution volume is higher than the case of normal macro-system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation