ISSN:
1573-4889
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The oxidation behavior of a nickel-cobalt base alloy containing 19% chromium and 3% aluminum was studied in the temperature range of 760–1200°C. The oxidation process at a given temperature was interrupted after 4, 16, and 64 hr, and every 100 hr thereafter, and the specimens were air-cooled, weighed, and subsequently reheated. The weight gain followed the parabolic law, and the activation energy was 58.8 kcal/mole. The oxide scale consisted of a chromium-rich continuous outer layer and aluminum-rich discontinuous internal oxides at both low and high temperatures. At an intermediate temperature, about 1090°C, the internal oxides became continuous, accompanied by a reduction in oxidation rate. The experimental results are discussed and compared with the information available in the literature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00612172
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