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Fe Base ODS alloys with improved mechanical strength

B. Kazimierzak (Dour Metal, Rue Benoit, 1 — B 7270 Dour‐Elouges)
M. Prignon (Dour Metal, Rue Benoit, 1 — B 7270 Dour‐Elouges)
Ch. Lecomte‐Mertens (C.R.M., Rue E. Solvay, 11 — B 4000 Liege)
D. Coutsouradis (C.R.M., Rue E. Solvay, 11 — B 4000 Liege)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Publication date: 1 October 1990

Abstract

Developments in higher temperature exchangers and other applications, require high strength as well as oxidation resistance at very high temperatures. In order to meet such requirements, Dour Metal has developed the ODM a new range of oxide dispersion strengthened (ODS) iron based materials. Compositional and thermomechanical manipulations can be used to develop the structure enabling the service temperature to be increased up to about 1200°C. Typical rupture strengths are presented for temperatures ranging from 900 to 1100°C. Data on oxidation and corrosion properties of various compositions are also presented. The emphasis is given to alloy ODM 751 on which most recent work has been performed. The composition of the alloy is 16.5% Cr‐4.5% Al‐0.6% Ti‐1.5% Mo‐0.5% Y2O3‐bal Fe and provides the best compromise between strength, formability and oxidation resistance. Measurements of longitudinal creep at 1100°C to 1200°C on ODM 751 tubes show the outstanding properties of the alloy in this range of temperatures.

Citation

Kazimierzak, B., Prignon, M., Lecomte‐Mertens, C. and Coutsouradis, D. (1990), "Fe Base ODS alloys with improved mechanical strength", Anti-Corrosion Methods and Materials, Vol. 37 No. 10, pp. 4-9. https://doi.org/10.1108/eb007280

Publisher

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MCB UP Ltd

Copyright © 1990, MCB UP Limited