An alternative method to determine critical pitting temperature of stainless steels in ferric chloride solution

Salinas-Bravo, V. M.; Newman, R. C.

doi:10.1016/0010-938x(94)90109-0

Cited by 111 publications

(76 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…182,[186][187][188][189] CPT exhibits much smaller statistical distributions than E pit for CRAs, and so is also used as a measure of resistance to pitting. The CPT has been explained by the different temperature dependencies for salt film and passive film formation so the CPT is the temperature above which a metal salt film will form on the pit wall instead of a passive film.…”

Section: Overview Of Metallic Corrosionmentioning

confidence: 99%

A comparative review of the aqueous corrosion of glasses, crystalline ceramics, and metals

et al. 2018

View full text Add to dashboard Cite

All materials can suffer from environmental degradation; the rate and extent of degradation depend on the details of the material composition and structure as well as the environment. The corrosion of silicate glasses, crystalline ceramics, and metals, particularly as related to nuclear waste forms, has received a lot of attention. The corrosion phenomena and mechanisms of these materials are different, but also have many similarities. This review compares and contrasts the mechanisms of environmental degradation of glass, crystalline ceramics, and metals, with the goal of identifying commonalities that can seed synergistic activities and advance the current knowledge in each area.npj Materials Degradation (2018) 2:15 ; doi:10.1038/s41529-018-0037-2 INTRODUCTIONNew research activity focused on the environmental degradation of silicate glasses, crystalline ceramics, and metals relevant to nuclear waste forms and containers has recently been described.

show abstract

Section: Overview Of Metallic Corrosionmentioning

confidence: 99%

A comparative review of the aqueous corrosion of glasses, crystalline ceramics, and metals

et al. 2018

View full text Add to dashboard Cite

show abstract

“…4 In 1994, Salinas-Bravo and Newman proposed an hypothesis for pit stabilization in their CPT model by suggesting that a salt film must be present on the pit surface to sustain the stable growth. 13 According to their model, a pit can only transition to stability above the CPT, since only then can the pit form a salt film on its surface. However, the crystallographic pit morphologies observed in many cases [14][15][16] cannot be explained by the perspective of diffusion control, and such observations indicate that a salt film might not be required for pit stability.…”

Section: Introductionmentioning

confidence: 99%

Localized Corrosion: Passive Film Breakdown vs. Pit Growth Stability: Part III. A Unifying Set of Principal Parameters and Criteria for Pit Stabilization and Salt Film Formation

Scully

Frankel

2018

J. Electrochem. Soc.

115

132

View full text Add to dashboard Cite

The framework for pit stability established in Part II of this series is elaborated upon and expanded. The maximum pit dissolution current density, i diff,max , which depends on temperature and maximum potential at the pit surface in a given pit environment, is proposed and compared with the diffusion current density to determine the conditions for pit stability and salt film formation. For an open pit, the criterion for pit stability is that i diss,max must be greater than or equal to the critical diffusion current density required for maintaining a critical local environment for active dissolution, i diff,crit . The critical condition of i diss,max = i diff,crit is associated with three parameters that must be exceeded for stabilization of an open pit: critical temperature T crit , critical potential E crit and critical pit depth r crit . Analogously, the criterion for salt film formation is i diss,max must further exceed the diffusion-limited current density i lim , and three parameters associated with salt film formation are: saturation temperature T sat , saturation potential E sat and saturation pit depth r sat . Unifying criteria for control of pit growth by charge transfer or diffusion are proposed, which provide interrelationships for all principle parameters. The pit stability criteria for covered pits, such as metastable pits, are also described.

show abstract

“…Using this method, it takes many days to determine a single reliable CPT value. Salinas-Bravo and Newman 77 In 1980 Bernhardsson et al 60,67,68 introduced an automated electrochemical method for CPT determination. The specimen is mounted as described in Section IV.2 (ii) using a stream of argon to avoid crevice corrosion and 0.02-5% sodium chloride as electrolyte.…”

Section: (Ii) Cpt In Feclmentioning

confidence: 99%

Automated Methods of Corrosion Measurement

Bech‐Nielsen

Andersen

Reeve

et al. 2002

Modern Aspects of Electrochemistry

View full text Add to dashboard Cite

An alternative method to determine critical pitting temperature of stainless steels in ferric chloride solution

Cited by 111 publications

References 8 publications

A comparative review of the aqueous corrosion of glasses, crystalline ceramics, and metals

A comparative review of the aqueous corrosion of glasses, crystalline ceramics, and metals

Localized Corrosion: Passive Film Breakdown vs. Pit Growth Stability: Part III. A Unifying Set of Principal Parameters and Criteria for Pit Stabilization and Salt Film Formation

Automated Methods of Corrosion Measurement

Contact Info

Product

Resources

About