Investigation of the Effect of pH on Stress Corrosion Cracking of API 5L X65 Steel by Impedance Spectroscopy and Slow Strain Rate Tensile Test

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F21%3A43970477" target="_blank" >RIV/49777513:23210/21:43970477 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11665-021-05826-w" target="_blank" >https://link.springer.com/article/10.1007/s11665-021-05826-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11665-021-05826-w" target="_blank" >10.1007/s11665-021-05826-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of the Effect of pH on Stress Corrosion Cracking of API 5L X65 Steel by Impedance Spectroscopy and Slow Strain Rate Tensile Test

Popis výsledku v původním jazyce

In this study, impedance spectroscopy, slow strain rate tensile test, and scanning electron microscopy were used to investigate the susceptibility of API 5L X65 steel to stress corrosion cracking (SCC) in a sulfide brine solution with different pHs. According to the analysis of SSRT, steel was susceptible to SCC in a brine solution. The reduction area ratio in the air was measured to be 80.3%, which was more significant than the reduction obtained in a brine solution with different pHs. EIS in different strain time in acidic solution exhibited an inductive element, which indicated strong hydrogen penetration effects and sulfide stress cracking (SSC) of steel in this environment. EIS in neutral and basic brine solutions presented constant phase element behavior of the porous electrodes, which indicated SCC behavior of steel in these solutions. Phase angle analysis indicated that cracks grow considerably after 9 h. Additionally, SEM illustrated a ductile type of fracture in the air and brittle type of fracture in all brine solutions. At low pH, internal cracks showing the interaction of hydrogen embrittlement and SSC before fracture were detected. At medium and high pHs, SEM exhibited many secondary cracks perpendicular to the tensile load, indicating the SCC behavior of X65 steel in these media.

Název v anglickém jazyce

Investigation of the Effect of pH on Stress Corrosion Cracking of API 5L X65 Steel by Impedance Spectroscopy and Slow Strain Rate Tensile Test

Popis výsledku anglicky

In this study, impedance spectroscopy, slow strain rate tensile test, and scanning electron microscopy were used to investigate the susceptibility of API 5L X65 steel to stress corrosion cracking (SCC) in a sulfide brine solution with different pHs. According to the analysis of SSRT, steel was susceptible to SCC in a brine solution. The reduction area ratio in the air was measured to be 80.3%, which was more significant than the reduction obtained in a brine solution with different pHs. EIS in different strain time in acidic solution exhibited an inductive element, which indicated strong hydrogen penetration effects and sulfide stress cracking (SSC) of steel in this environment. EIS in neutral and basic brine solutions presented constant phase element behavior of the porous electrodes, which indicated SCC behavior of steel in these solutions. Phase angle analysis indicated that cracks grow considerably after 9 h. Additionally, SEM illustrated a ductile type of fracture in the air and brittle type of fracture in all brine solutions. At low pH, internal cracks showing the interaction of hydrogen embrittlement and SSC before fracture were detected. At medium and high pHs, SEM exhibited many secondary cracks perpendicular to the tensile load, indicating the SCC behavior of X65 steel in these media.

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

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

ISSN

1059-9495

e-ISSN

1544-1024

Svazek periodika

30

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

19

Strana od-do

5633-5651

Kód UT WoS článku

000649236100003

EID výsledku v databázi Scopus

2-s2.0-85105869856