Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports

Author:

Publisher:

Published: 1994

Total Pages: 804

ISBN-13:

DOWNLOAD EBOOK

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.


Oxidation of Iron-, Nickel-, and Cobalt-base Alloys

Oxidation of Iron-, Nickel-, and Cobalt-base Alloys

Author: I. G. Wright

Publisher:

Published: 1972

Total Pages: 70

ISBN-13:

DOWNLOAD EBOOK

Iron-, nickel-, and cobalt-base superalloys, starting from the compositions Fe-20Cr, Ni-20Cr, and Co-(20 to 25)Cr, have been developed along fundamentally different routes dictated mainly by differing compositional requirements in the search for increased high temperature strength. In Ni-Cr alloys, for example, chromium content has been decreased gradually, and the aluminum content increased to the extent that the alloys now are basically Ni-Cr-Al alloys. In the review current data relating to the oxidation of the relevant pure metals and their binary and ternary alloys are examined first, and then data on oxidation of the more complex engineering alloys are considered. The oxidizing atmosphere is assumed to be oxygen or air, but the mechanisms described generally are applicable to other oxidizing atmospheres. (Author).


AGARD Index of Publications

AGARD Index of Publications

Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Technical Information Panel

Publisher:

Published: 1972

Total Pages: 462

ISBN-13:

DOWNLOAD EBOOK


Hot Corrosion in Gas Turbines

Hot Corrosion in Gas Turbines

Author: John Stringer

Publisher:

Published: 1972

Total Pages: 64

ISBN-13:

DOWNLOAD EBOOK

Discrepancies between early hot-corrosion models based on sulphidation and more recently reported data obtained by a molten salt fluxing technique are discussed. The hot corrosion role of sulphur in the absence of salt was tested by presulphidizing specimens at high and low sulphur partial pressures and then oxidizing them. Results show that certain features of the practical hot corrosion reaction are not well-modeled by the salt-fluxing model and that sulphur played a more important part than predicted. (Author).