Corrosion performance of types 310S and 410 stainless steels in forming gas containing 1% H₂S or 1% H₂S/1% HCl at 600°C

Authors: Levi, T.P.; Lichti, K.A.; Tack, A.J.

Source: Materials at High Temperatures, Volume 18, Number 1, February 2001 , pp. 65-70(6)

Publisher: Science Reviews 2000 Ltd

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Abstract:

The corrosion of types 310S and 410 stainless steels in forming gas containing 1%H₂S or 1%H₂S/1%HCl has been studied at 600°C. In the conditions chosen, sulphide scales formed on both materials and significant differences in corrosion rate and depth of attack were observed. Thermogravimetric results showed that for both materials there was an initial transient period of rapid sulphidation after which linear or parabolic kinetics were observed. Type 310S and 410 both developed non-adherent, multi-layered sulphide corrosion products. Scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffraction were used to examine the structure and composition of these sulphide scales. The differences in corrosion morphology are in agreement with the variations in the thermogravimetric experiments. Mechanistic corrosion models are being developed.

Keywords: stainless steels; high temperature corrosion; hydrogen sulphide; hydrogen chloride

Document Type: Research article

DOI: http://dx.doi.org/10.3184/096034001783640711

Affiliations: 1: Materials Performance Technologies Limited, PO Box 31-310, Lower Hutt, New Zealand

Publication date: 2001-02-15

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Materials at High Temperatures serves the needs of those who develop and use materials for high temperature applications. It publishes peer reviewed contributions relating to high temperature applications in the power, chemical, engine, processing and furnace industries.
The effects of high temperatures on corrosion, fatigue, creep, strength and wear in alloys, intermetallics, ceramics, refractories and composites are covered. Papers dealing with aspects of materials usage including modelling of behaviour and life prediction will be particularly welcome. The journal has a policy of emphasizing practical aspects and authors presenting results from research programmes are encouraged to relate these, if possible, to actual or potential applications.
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