Effect of nickel in solid solution on the hydrogen embrittlement susceptibility of low alloy steels

Husby, H.; Johnsen, R.; Iannuzzi, Mariano; Barnoush, A.; Kappes, M.; Rebak, R.

Access Status

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Authors

Husby, H.

Johnsen, R.

Iannuzzi, Mariano

Barnoush, A.

Kappes, M.

Rebak, R.

Date

2017

Type

Conference Paper

Metadata

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Citation

Husby, H. and Johnsen, R. and Iannuzzi, M. and Barnoush, A. and Kappes, M. and Rebak, R. 2017. Effect of nickel in solid solution on the hydrogen embrittlement susceptibility of low alloy steels. In 14th International Conference on Fracture ( !CF 2017), 18-23 June 2017, Rhodes, Greece.

Source Title

ICF 2017 - 14th International Conference on Fracture

Faculty

Faculty of Science and Engineering

School

WASM: Minerals, Energy and Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/79634

Collection

Curtin Research Publications

Abstract

© 2017 Chinese Society of Theoretical and Applied Mechanics. All Rights Reserved. In the oil and gas industry, the use of low alloy steels (LAS) in H2S containing environments is governed by ISO 15156-2. Nickel is limited to a maximum of 1 wt% due to sulfide stress cracking (SSC) resistance concerns. This work investigated the effect of solid solution nickel in the ferrite phase on hydrogen transport kinetics and hydrogen stress cracking (HSC) susceptibility. Ferritic/pearlitic research-grade LAS with nominal nickel contents of 0, 1, 2 and 3 wt% were examined. Electrochemical hydrogen permeability experiments were carried out to investigate hydrogen diffusion, solubility, and trapping in the steels. The relative HSC susceptibilities of the steels were determined by slow strain rate (SSR) testing with in situ hydrogen charging. Combining hydrogen permeability and SSR tests allowed for the quantification of the HSC resistance as a function of nickel content.