Critical conditions for pit initiation and growth of austenitic stainless steels

Ameri, Mohamed Al; Yi, Yongsun; Cho, P.; Saadi, Sara Al; Jang, Changheui; Beeley, Philip A.

doi:10.1016/j.corsci.2014.12.006

Cited by 27 publications

(12 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, chloride concentration is increased due to the water layer drying up, and a critical value is reached to generate pitting corrosion [1]. This issue is also reported in other works [4][5][6][7][8]. It is noted in [8], that the RH for pitting during drying (RH pit ) and repassivation during wetting (RH rep ) are correspondingly equal to 56 % and 65 %; the average chloride concentration for pitting initiation is recorded at 7.3 M.…”

Section: Introductionsupporting

confidence: 62%

Corrosion of stainless steel water storage tanks exposed in coastal atmospheric conditions

Nguyen¹,

Tran²,

Vu³

et al. 2018

JST

View full text Add to dashboard Cite

The results of corrosion survey for stainless steel tanks used in water storage at various areas are presented. More severe corrosion is observed for the area with higher airborne salinity. Damages are revealed at both outer and inner surfaces for tanks made of Type 304 and 201 steels exposed in coastal conditions. Corrosion products examined by visual inspection and SEM-EDX technique showed relatively distinctive characteristics for the outer and inner tank surfaces which are attributed to different corrosion mechanisms initiated by corrosive chloride accumulated on steel surfaces. Airborne salinity is considered the main source causing corrosion of Type 304 and 201 stainless steel tanks.

show abstract

Section: Introductionsupporting

confidence: 62%

Corrosion of stainless steel water storage tanks exposed in coastal atmospheric conditions

Nguyen¹,

Tran²,

Vu³

et al. 2018

JST

View full text Add to dashboard Cite

show abstract

“…Taking into account the E pit values, it can be stated that nitrided samples are relatively more pitting corrosion-resistant than carburized ones. However, it should be emphasized that despite the deteriorated pitting resistance of Ti-6Al-4V alloy after the carburizing and nitriding processes, it is still more pitting-resistant than AISI 316 stainless steel; according to the literature [ 43 , 44 , 45 ], AISI 316 in chloride-containing solutions undergoes pitting at potentials of 0.4–0.6 V, which are much lower than the pitting potentials determined for carburized and nitrided Ti-6Al-4V samples.…”

Section: Resultsmentioning

confidence: 99%

Comparison of Different Thermo-Chemical Treatments Methods of Ti-6Al-4V Alloy in Terms of Tribological and Corrosion Properties

et al. 2020

View full text Add to dashboard Cite

Titanium and its alloys are characterized by high mechanical strength, good corrosion resistance, high biocompatibility and relatively low Young’s modulus. For many years, one of the most commonly used and described titanium alloys has been Ti-6Al-4V. The great interest in this two-phase titanium alloy is due to the broad possibilities of shaping its mechanical and physico-chemical properties using modern surface engineering techniques. The high coefficient of friction and tendency to galling are the most important drawbacks limiting the application of this material in many areas. In this regard, such methods as carburizing, nitriding, oxidation, and the synthesis of thin films using physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods may significantly improve the tribological properties of titanium alloys. The influence of thermo-chemical treatment (oxidation, carburizing and nitriding) on tribological properties and corrosion resistance of Ti-6Al-4V alloy is presented in this paper. The results include metallographic studies, analysis of tribological and mechanical properties and corrosion resistance as well. They indicate significant improvements in mechanical properties manifested by a twofold increase in hardness and improved corrosion resistance for the oxidation process. The carburizing was most important for reducing the coefficient of friction and wear rate. The nitriding process had the least effect on the properties of Ti-6Al-4V alloy.

show abstract

“…It is well known that the metastable pit of the steel surface is identified from the current rise followed by a current fall [38,39]. The stable pit growth can be identified from the steep rise in current density [40]. However, decreasing the nickel content below 6 wt.…”

Section: Potentiodynamic Polarisationmentioning

confidence: 99%

Mechanical properties and corrosion behaviour of developed high nitrogen high manganese stainless steels

Saravanan¹,

Govindaraj

Khalkho³

et al. 2023

Materialwissenschaft Werkst

View full text Add to dashboard Cite

Influence of composition, specifically manganese and nitrogen content, on the microstructure associated corrosion resistance property of newly developed stainless steel has been studied. The developed steels have been characterised for their microstructure, mechanical and electrochemical properties.The results indicate that the addition of manganese and nitrogen as a substitute for nickel favours the austenite microstructure, higher yield strength (> 350 MPa), tensile strength (> 700 MPa), elongation and superior Charpy Vnotch impact toughness properties. The results obtained from electrochemical tests such as potentiodynamic polarisation and electrochemical impedance spectroscopy of manganese stainless steel show remarkable improvement (about 4 times) in corrosion resistance exhibiting passivity behaviour like that of commercial stainless steel (316L).

show abstract

Critical conditions for pit initiation and growth of austenitic stainless steels

Cited by 27 publications

References 36 publications

Corrosion of stainless steel water storage tanks exposed in coastal atmospheric conditions

Corrosion of stainless steel water storage tanks exposed in coastal atmospheric conditions

Comparison of Different Thermo-Chemical Treatments Methods of Ti-6Al-4V Alloy in Terms of Tribological and Corrosion Properties

Mechanical properties and corrosion behaviour of developed high nitrogen high manganese stainless steels

Contact Info

Product

Resources

About