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TECHNICAL PAPERS

High-Temperature Oxidation Behavior of 214Cr-1Mo Steel in Air–Part 2: Scale Growth, Metal Loss Kinetics, and Stress Enhancement Factors During Creep Testing

[+] Author and Article Information
Levi O. Bueno, Luiz Marino

Departmento de Engenharia de Materials, Universidade Federal de Sao Carlos, 13565-905 Sao Carlos (SP), Brazil

J. Pressure Vessel Technol 123(1), 97-104 (Oct 27, 2000) (8 pages) doi:10.1115/1.1335498 History: Received January 01, 2000; Revised October 27, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic view of the cross section of the cylindrical specimens after oxidation
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Correlation between metal loss thickness and oxide scale thickness—(a) showing linear regression through the data; (b) log×log plot data from the general linear trend
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Variation of scale thickness with time—(a) 600°C; (b) 700°C; (c) 800°C
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Variation of the coefficient of oxide-scale growth thickness with inverse temperature
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(a) Oxide thickness versus time data with the parabolic fit at temperatures from 700 to 850°C. The data at 600°C is shown with the logarithmic fitting only; (b) same data in log×log scale.
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Variation of the metal loss with oxidation time—(a) 600°C; (b) 700°C; (c) 800°C; curves represent potential fit through the data
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Variation of the coefficient for metal loss thickness with inverse temperature
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(a) Variation of the metal loss thickness with time, using the parabolic relation; (b) same data in log×log plot
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(a) Oxide-scale thickness results at 600°C compared to Simms and Little 2 data on dry flowing oxygen; (b) metal loss due to oxidation measured by Murphy and Branch 15 on shoulders of crept specimens at 593°C, compared to parabolic data of the present work
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Comparison of the data obtained in this work with data from other publication on metal loss thickness of 2 1/4 Cr-1Mo steel after oxidation at high temperatures, but in steam environment
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Reduction of the resisting cross-sectional area with time for cylindrical specimens
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Factor of stress enhancement due to oxidation during constant load creep testing on 6.5-mm-dia specimens. Solid lines represent curves obtained by extrapolation of the parabolic equations for metal loss from 550 to 850°C.

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