Gorman, D; Fry, A T (2017) Porosity connectivity within the spinel layer of the 9 Cr steel grade 91 when exposed to high temperature steam. Oxidation of Metals, 88 (3-4). pp. 435-446.

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Abstract

Focused ion beam tomography has been employed in the study of pore morphology in spinel oxide formed on Grade 91 steel exposed to high-temperature steam for 1, 24 and 100 hours under laboratory settings and at 91 kh in-service. The pores, also termed voids, exhibited a higher degree of connectivity than was expected and are likely to make a significant contribute to the prevailing mass transport mechanism across the scale. A mechanism for the formation of these voids and their relationship to other microstructural features is discussed.

Item Type:	Article
Keywords:	Grade 91/P91/T91, Porosity, Void, Steam, Oxidation, 9 Cr Steel
Subjects:	Advanced Materials > Corrosion Advanced Materials > Microstructural Characterisation
Divisions:	Engineering, Materials & Electrical Science
Identification number/DOI:	10.1007/s11085-016-9674-4
Last Modified:	28 Feb 2018 15:15
URI:	http://eprintspublications.npl.co.uk/id/eprint/7740

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