4.7 Article

The beneficial effect of surface carbon coating on stress corrosion cracking of Type 304 austenitic stainless steels in high temperature water

Journal

SCRIPTA MATERIALIA
Volume 158, Issue -, Pages 77-82

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2018.08.033

Keywords

Stress corrosion cracking; Oxidation; Corrosion; Stainless steel; Carbon

Funding

  1. EPSRC through NNUMAN programme [EP/JO21172/1]
  2. EPSRC NEUP programme [EP/N017854/1]
  3. EPSRC [EP/P025021/1, EP/J021172/1, EP/N017854/1, EP/J021229/1] Funding Source: UKRI

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A pronounced improvement in stress corrosion cracking initiation resistance resulting from the presence of a carbonaceous surface film was investigated for specimens strained dynamically in hydrogenated high temperature water. Microstructural characterisation of the post-test samples indicated that this improvement in SCC resistance was promoted by the formation of a more uniform and thick surface oxide layer that prevented localized oxidation. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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