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Naslov:Elucidating nucleation stages of transgranular stress corrosion cracking in austenitic stainless steel by in situ electrochemical and optical methods
Avtorji:ID Helmuth, Sarmiento Klapper (Avtor)
ID Zajec, Bojan (Avtor)
ID Heyn, Andreas (Avtor)
ID Legat, Andraž (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite http://jes.ecsdl.org/content/166/11/C3326.full.pdf+html
 
.pdf PDF - Predstavitvena datoteka, prenos (2,28 MB)
MD5: A1423C20506CC63A07ADFBD072F9D4F9
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:The pitting and environmentally assisted cracking resistance of austenitic stainless steels (SS) is challenged in several industrial applications particularly those involving hot chloride-concentrated streams. Directional drilling used in the oil and gas exploration is one of these applications. Indeed, high strength CrMn-SS commonly used in drilling technology have a high tendency to fail by stress corrosion cracking (SCC) preceded by localized corrosion once subjected to highly chloride-concentrated drilling fluids at elevated temperatures. A comprehensive understanding regarding the mechanisms governing the transition from pitting into SCCis not currently available, though. Therefore, mechanistic aspects such as the effect of loading conditions on pit nucleation and repassivation as well as the synergistic effect between pit stabilization and the nucleation of a stress corrosion crack are of great practical significance. To investigate this an electrochemical-, optical- and mechanical- monitored SCC test was conducted on a CrMn-SS in an alkaline brine at elevated temperature. The transition from metastable to stable pitting and subsequently to SCC in this system was documented in-situ for the first time. Results supported H.S. Isaacs postulates regarding the interpretation of electrochemical signals and demonstrated that loading conditions affect pit nucleation and repassivation leading to a higher susceptibility of the material to pitting, which preceded SCC.
Ključne besede:pitting corrosion, stress corrosion cracking, monitoring, elektrochemical noise, austenitic stainless steel
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:31.05.2019
Založnik:Electrochemical Society
Leto izida:2019
Št. strani:str. C3326-C3335
Številčenje:Vol. 166, iss. 11
PID:20.500.12556/DiRROS-17327 Novo okno
UDK:544.5/.6
ISSN pri članku:1945-7111
DOI:10.1149/2.0411911jes Novo okno
COBISS.SI-ID:2482535 Novo okno
Avtorske pravice:© The Author(s) 2019. Published by ECS.
Opomba:Nasl. z nasl. zasl.; Opis vira z dne 27. 8. 2019;
Datum objave v DiRROS:23.11.2023
Število ogledov:796
Število prenosov:494
Metapodatki:XML DC-XML DC-RDF
:
HELMUTH, Sarmiento Klapper, ZAJEC, Bojan, HEYN, Andreas in LEGAT, Andraž, 2019, Elucidating nucleation stages of transgranular stress corrosion cracking in austenitic stainless steel by in situ electrochemical and optical methods. Journal of the electrochemical society [na spletu]. 2019. Vol. 166, no. 11, p. c3326–c3335. [Dostopano 17 marec 2025]. DOI 10.1149/2.0411911jes. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=17327
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Gradivo je del revije

Naslov:Journal of the electrochemical society
Založnik:Electrochemical Society
ISSN:1945-7111
COBISS.SI-ID:22698791 Novo okno

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:jamičasta korozija, napetostno korozijsko pokanje, moniotoring, elektrokemijski šum, avstenitno nerjavno jeklo


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