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Sulfide stress cracking resistance of API-X100 high strength low alloy steel

Al-Mansour, M. / Alfantazi, A.M. / El-boujdaini, M.

AbstractSulfide Stress Cracking (SSC) of API-X100 high strength low alloy steel was evaluated in NACE solution “A” at room temperature. The corrosion rate, utilizing electrochemical polarization techniques, in the solution was 97mpy. Proof ring testing, per NACE TM-0177, generated an SSC threshold stress value of 46% of yield strength. SSC susceptibility was caused by the high corrosion rate which formed corrosion pits that acted as crack initiation sites on the metal surface and provided more hydrogen to migrate into the steel. In addition, the X100 inhomogeneous microstructure provided a high density of hydrogen traps which promoted hydrogen embrittlement.

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Sulfide stress cracking resistance of API-X100 high strength low alloy steel

Al-Mansour, M. / Alfantazi, A.M. / El-boujdaini, M.

AbstractSulfide Stress Cracking (SSC) of API-X100 high strength low alloy steel was evaluated in NACE solution “A” at room temperature. The corrosion rate, utilizing electrochemical polarization techniques, in the solution was 97mpy. Proof ring testing, per NACE TM-0177, generated an SSC threshold stress value of 46% of yield strength. SSC susceptibility was caused by the high corrosion rate which formed corrosion pits that acted as crack initiation sites on the metal surface and provided more hydrogen to migrate into the steel. In addition, the X100 inhomogeneous microstructure provided a high density of hydrogen traps which promoted hydrogen embrittlement.

Sulfide stress cracking resistance of API-X100 high strength low alloy steel

Al-Mansour, M. / Alfantazi, A.M. / El-boujdaini, M.

AbstractSulfide Stress Cracking (SSC) of API-X100 high strength low alloy steel was evaluated in NACE solution “A” at room temperature. The corrosion rate, utilizing electrochemical polarization techniques, in the solution was 97mpy. Proof ring testing, per NACE TM-0177, generated an SSC threshold stress value of 46% of yield strength. SSC susceptibility was caused by the high corrosion rate which formed corrosion pits that acted as crack initiation sites on the metal surface and provided more hydrogen to migrate into the steel. In addition, the X100 inhomogeneous microstructure provided a high density of hydrogen traps which promoted hydrogen embrittlement.

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Title:

Sulfide stress cracking resistance of API-X100 high strength low alloy steel

Contributors:

Al-Mansour, M. (author) / Alfantazi, A.M. (author) / El-boujdaini, M. (author)

Publication date:

2009-05-08

Size:

7 pages

ISSN:

DOI:

https://doi.org/10.1016/j.matdes.2009.05.025

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Corrosion , Environmental performance , Microstructure , Ferrous metals and alloys

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