Oxidation behaviour of FeAl intermetallics: effects of reactive elements on cyclic oxidation properties
Authors: Xu C.-H.; Gao, W.
Source: Materials Science and Technology, Volume 17, Number 3, March 2001 , pp. 324-332(9)
Publisher: Maney Publishing
Abstract:The cyclic oxidation behaviour of doped and undoped FeAl intermetallics was studied at 1000–1200°C. It was found that the scale spallation resistance of FeAl was remarkably improved by reactive element (Zr and/or Y) additions. The exposure time in each cycle also affected the scale spallation tendency of undoped FeAl. Cycling with short exposure times changed the scale spallation mechanisms and improved the spallation resistance. Electron microscopy, microanalysis, and X-ray diffractometry were used to study the scale spallation processes. The effects of reactive element additions on scale spallation mechanisms are also discussed based on experimental observations and stress calculations.
Document Type: Regular Paper
Affiliations: Department of Chemical and Materials Engineering, The University of Auckland, New Zealand (email@example.com)
Publication date: 2001-03-01
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