Impedance Studies on Stress Corrosion Cracking Behavior of Steel Pipeline in NS4 Solution under SSRT Test Condition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F21%3A43970516" target="_blank" >RIV/49777513:23210/21:43970516 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1134/S2070205121030126" target="_blank" >https://link.springer.com/article/10.1134/S2070205121030126</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S2070205121030126" target="_blank" >10.1134/S2070205121030126</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impedance Studies on Stress Corrosion Cracking Behavior of Steel Pipeline in NS4 Solution under SSRT Test Condition

Popis výsledku v původním jazyce

Stress corrosion cracking behavior of API 5L X65 steel in a NS4 solution with different pH was investigated by electrochemical impedance under slow strain rate tensile test. NS4 solution was selected as corrosive electrolyte under disbonded pipeline coatings. According to the analysis of tensile test, steel was susceptible to SCC in a NS4 solution. The reduction area ratio in the air was measured to be 70.71%, which was more significant than the reduction obtained in a NS4 solution with different pH. EIS in different strain time in acidic solution showed perfect semicircles, which indicated high dissolution rate and some hydrogen penetration effect in this environment. EIS in neutral and basic NS4 solution presented effective constant phase elements in the transmission line model for the porous electrode, which indicated SCC behavior of steel in these solutions. Phase angle analysis indicated that cracks grow considerably after 12 h. Besides, SEM illustrated a ductile type of fracture in air and brittle type of fracture in all NS4 solution.

Název v anglickém jazyce

Impedance Studies on Stress Corrosion Cracking Behavior of Steel Pipeline in NS4 Solution under SSRT Test Condition

Popis výsledku anglicky

Stress corrosion cracking behavior of API 5L X65 steel in a NS4 solution with different pH was investigated by electrochemical impedance under slow strain rate tensile test. NS4 solution was selected as corrosive electrolyte under disbonded pipeline coatings. According to the analysis of tensile test, steel was susceptible to SCC in a NS4 solution. The reduction area ratio in the air was measured to be 70.71%, which was more significant than the reduction obtained in a NS4 solution with different pH. EIS in different strain time in acidic solution showed perfect semicircles, which indicated high dissolution rate and some hydrogen penetration effect in this environment. EIS in neutral and basic NS4 solution presented effective constant phase elements in the transmission line model for the porous electrode, which indicated SCC behavior of steel in these solutions. Phase angle analysis indicated that cracks grow considerably after 12 h. Besides, SEM illustrated a ductile type of fracture in air and brittle type of fracture in all NS4 solution.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Protection of Metals and Physical Chemistry of Surfaces

ISSN

2070-2051

e-ISSN

2070-206X

Svazek periodika

57

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

634-646

Kód UT WoS článku

000668193300024

EID výsledku v databázi Scopus

2-s2.0-85111088650