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Hydrogen embrittlement of stainless steel overlay materials for hydrogenators

Lookup NU author(s): Dr Alasdair CharlesORCiD, Yun Wei

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Abstract

An investigation was carried out of the effect of hydrogen absorption on the tensile ductility of composite specimens representing stainless steel weld overlays on low alloy steel substrates as used in the fabrication of hydrogenators. Specimens of the two stainless steels (AISI 309 and 347) involved in hydrogen cracking were also fractured in tension at strain rates between 5.9 × 10-6 and 1.5 × 10-3 s-1 after thermal charging with hydrogen. Results indicated that only the 347 samples suffered significant embrittlement by hydrogen and the original ductility could be restored by subsequent annealing for a time and temperature determined by the hydrogen diffusivity. © 2004 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Hardie D, Xu J, Charles EA, Wei Y

Publication type: Article

Publication status: Published

Journal: Corrosion Science

Year: 2004

Volume: 46

Issue: 12

Pages: 3089-3100

ISSN (print): 0010-938X

ISSN (electronic):

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.corsci.2004.03.017

DOI: 10.1016/j.corsci.2004.03.017

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