The effect of absorbed hydrogen on the dissolution of steel

Sebastian Thomas; Noemie Ott; Rebecca F. Schaller; Jodie A. Yuwono; Polina Volovitch; Guruprasad Sundararajan; Nikhil V. Medhekar; Kevin Ogle; John R. Scully; Nick Birbilis

doi:10.1016/j.heliyon.2016.e00209

The effect of absorbed hydrogen on the dissolution of steel

Sebastian Thomas^*, Noemie Ott, Rebecca F. Schaller, Jodie A. Yuwono, Polina Volovitch, Guruprasad Sundararajan, Nikhil V. Medhekar, Kevin Ogle, John R. Scully, Nick Birbilis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Atomic hydrogen (H) was introduced into steel (AISI 1018 mild steel) by controlled cathodic pre-charging. The resultant steel sample, comprising about 1 ppmw diffusible H, and a reference uncharged sample, were studied using atomic emission spectroelectrochemistry (AESEC). AESEC involved potentiodynamic polarisation in a flowing non-passivating electrolyte (0.6 M NaCl, pH 1.95) with real time reconciliation of metal dissolution using on-line inductively coupled plasma-atomic emission spectroscopy (ICP-OES). The presence of absorbed H was shown to significantly increase anodic Fe dissolution, as evidenced by the enhanced detection of Fe²⁺ ions by ICP-OES. We discuss this important finding in the context of previously proposed mechanisms for H-effects on the corrosion of steels.

Original language	English
Article number	e00209
Journal	Heliyon
Volume	2
Issue number	12
DOIs	https://doi.org/10.1016/j.heliyon.2016.e00209
Publication status	Published - 1 Dec 2016
Externally published	Yes

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title = "The effect of absorbed hydrogen on the dissolution of steel",

abstract = "Atomic hydrogen (H) was introduced into steel (AISI 1018 mild steel) by controlled cathodic pre-charging. The resultant steel sample, comprising about 1 ppmw diffusible H, and a reference uncharged sample, were studied using atomic emission spectroelectrochemistry (AESEC). AESEC involved potentiodynamic polarisation in a flowing non-passivating electrolyte (0.6 M NaCl, pH 1.95) with real time reconciliation of metal dissolution using on-line inductively coupled plasma-atomic emission spectroscopy (ICP-OES). The presence of absorbed H was shown to significantly increase anodic Fe dissolution, as evidenced by the enhanced detection of Fe2+ ions by ICP-OES. We discuss this important finding in the context of previously proposed mechanisms for H-effects on the corrosion of steels.",

keywords = "Engineering, Materials Science",

author = "Sebastian Thomas and Noemie Ott and Schaller, {Rebecca F.} and Yuwono, {Jodie A.} and Polina Volovitch and Guruprasad Sundararajan and Medhekar, {Nikhil V.} and Kevin Ogle and Scully, {John R.} and Nick Birbilis",

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doi = "10.1016/j.heliyon.2016.e00209",

language = "English",

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T1 - The effect of absorbed hydrogen on the dissolution of steel

AU - Thomas, Sebastian

AU - Ott, Noemie

AU - Schaller, Rebecca F.

AU - Yuwono, Jodie A.

AU - Volovitch, Polina

AU - Sundararajan, Guruprasad

AU - Medhekar, Nikhil V.

AU - Ogle, Kevin

AU - Scully, John R.

AU - Birbilis, Nick

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Atomic hydrogen (H) was introduced into steel (AISI 1018 mild steel) by controlled cathodic pre-charging. The resultant steel sample, comprising about 1 ppmw diffusible H, and a reference uncharged sample, were studied using atomic emission spectroelectrochemistry (AESEC). AESEC involved potentiodynamic polarisation in a flowing non-passivating electrolyte (0.6 M NaCl, pH 1.95) with real time reconciliation of metal dissolution using on-line inductively coupled plasma-atomic emission spectroscopy (ICP-OES). The presence of absorbed H was shown to significantly increase anodic Fe dissolution, as evidenced by the enhanced detection of Fe2+ ions by ICP-OES. We discuss this important finding in the context of previously proposed mechanisms for H-effects on the corrosion of steels.

AB - Atomic hydrogen (H) was introduced into steel (AISI 1018 mild steel) by controlled cathodic pre-charging. The resultant steel sample, comprising about 1 ppmw diffusible H, and a reference uncharged sample, were studied using atomic emission spectroelectrochemistry (AESEC). AESEC involved potentiodynamic polarisation in a flowing non-passivating electrolyte (0.6 M NaCl, pH 1.95) with real time reconciliation of metal dissolution using on-line inductively coupled plasma-atomic emission spectroscopy (ICP-OES). The presence of absorbed H was shown to significantly increase anodic Fe dissolution, as evidenced by the enhanced detection of Fe2+ ions by ICP-OES. We discuss this important finding in the context of previously proposed mechanisms for H-effects on the corrosion of steels.

KW - Engineering

KW - Materials Science

UR - http://www.scopus.com/inward/record.url?scp=85007414034&partnerID=8YFLogxK

U2 - 10.1016/j.heliyon.2016.e00209

DO - 10.1016/j.heliyon.2016.e00209

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SN - 2405-8440

VL - 2

JO - Heliyon

JF - Heliyon

IS - 12

M1 - e00209

ER -

The effect of absorbed hydrogen on the dissolution of steel

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