New Iron-Based ODS-Superalloys for High Demanding Applications PUBLIC ACCESS

[+] Author Affiliations
G. Korb, H.-P. Martinz

Metallwerk Plansee GmbH

M. Rühle

Metallgesellschaft Frankfurt

Paper No. 91-GT-405, pp. V005T12A015; 8 pages
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME


Some shortcomings of the commercial alloy MA 956 like insufficient hot gas corrosion resistance at extremely high temperatures or porous welding seams as a result of residual inert gas content, have been overcome by slightly changing the chemical composition, and a generally improved process technology. The mainly developed “work horse”-alloy PM 2000 - exhibits additionally significantly better stress-rupture properties at high temperatures. Workability even down to small dimensions is good, when an especially adapted processing route is applied.

In this paper data of tensile strength and stress rupture properties are given for elevated temperatures. Hot gas corrosion behaviour is demonstrated for isothermally and cyclicly treated materials, including thermal shock tests. Some results of a burner rig test are presented additionally. Resistance against different molten slags, salts and glasses has been investigated and is discussed.

Copyright © 1991 by ASME
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