On the effect of hydrogen on the corrosion and electrochemistry of AISI 410 and F22 steels

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Abstract

The impact of absorbed hydrogen on the corrosion of AISI 410 and F22 steels were studied in aqueous acidic chloride solutions. These steels are used in turbo-machinery, operating in sour environments, and are thus prone to hydrogen embrittlement. Hydrogen was firstly introduced into the steels by cathodic charging, wherein, the steel samples were held at -1.632 VSCE in 0.1 M NaCl solution (with pH 10) for different time periods. The corrosion characteristics of these hydrogen pre-charged steels were then studied using cyclic potentiodynamic polarisation. It was observed that the presence of dissolved hydrogen in the AISI 410 martensitic stainless steel, increases its anode reaction kinetics and decreases its pitting potential (thus making the steel more prone to localised corrosion).The H-charged F22 (carbon) steels showed a slight increase in the anode reaction kinetics.

Original languageEnglish
Title of host publicationAustralasian Corrosion Association Annual Conference: Corrosion and Prevention 2015, ACA 2015
Subtitle of host publicationAdelaide, Australia; 15-18 November 2015
Place of PublicationKerrimuir VIC Australia
PublisherAustralasian Corrosion Association
Number of pages7
ISBN (Print)9781510822573
Publication statusPublished - 2015
EventAustralasian Corrosion Association (ACA) Conference 2015: Corrosion and Prevention - Adelaide Convention Centre, Adelaide, Australia
Duration: 15 Nov 201518 Nov 2015
https://web.archive.org/web/20150226195929/http://acaconference.com.au/home

Conference

ConferenceAustralasian Corrosion Association (ACA) Conference 2015
Abbreviated titleCP 2015
CountryAustralia
CityAdelaide
Period15/11/1518/11/15
Internet address

Keywords

  • AISI 410
  • Embrittlement
  • F22
  • Hydrogen
  • Steel
  • Sulphide stress cracking

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