Modeling the Effects of Damage and Microstructural Evolution on the Creep Behavior of Engineering Alloys

M. McLean; B. F. Dyson

doi:10.1115/1.482798

Journal of Engineering Materials and Technology | Volume 122 | Issue 3 | TECHNICAL PAPERS

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TECHNICAL PAPERS

Modeling the Effects of Damage and Microstructural Evolution on the Creep Behavior of Engineering Alloys

M. McLean and B. F. Dyson

[+] Author and Article Information

M. McLean, B. F. Dyson

Department of Materials, Imperial College of Science, Technology and Medicine, Prince Consort Road, London SW7 2BP, UK

J. Eng. Mater. Technol 122(3), 273-278 (Feb 23, 2000) (6 pages) doi:10.1115/1.482798 History: Received October 15, 1999; Revised February 23, 2000

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Illustrating the similarity in the shapes of creep curves of disparate commercial alloys

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Demonstrating that tension/compression asymmetries can vary significantly between alloy systems

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Lifetimes of “new” and service-exposed 1Cr1/2Mo steels at 550°C: data and predictions (Ref. 8)

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Demonstrating the benign effect of prior thermal aging on the creep response of a commercial precipitation-hardened alloy, IN738LC (Ref. 9)

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Demonstrating the creep softening effect of prior plastic deformation. (a) Nimonic 80A at 154MPa/750°C; (b) aluminum alloy 2056 at 250MPa/175°C.

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Demonstrating the effect of prior plastic prestrain at room temperature on the creep response of a commercial solid solution alloy, Nimonic 75 (Ref. 13)

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Comparison between model predictions incorporating single and multiple damage mechanisms and strain rate data from a 12% Cr steel

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Comparison of lifetime predictions under two-step loading, using “strain hardening” and CDM methods. (a) 170 MPa to 250 MPa; (b) 250 to 170 MPa.

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McLean MM, Dyson BF. Modeling the Effects of Damage and Microstructural Evolution on the Creep Behavior of Engineering Alloys. ASME. J. Eng. Mater. Technol. 2000;122(3):273-278. doi:10.1115/1.482798.

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Modeling the Effects of Damage and Microstructural Evolution on the Creep Behavior of Engineering Alloys

References

Figures

Illustrating the similarity in the shapes of creep curves of disparate commercial alloys

Demonstrating that tension/compression asymmetries can vary significantly between alloy systems

Lifetimes of “new” and service-exposed 1Cr1/2Mo steels at 550°C: data and predictions (Ref. 8)

Demonstrating the benign effect of prior thermal aging on the creep response of a commercial precipitation-hardened alloy, IN738LC (Ref. 9)

Demonstrating the creep softening effect of prior plastic deformation. (a) Nimonic 80A at 154MPa/750°C; (b) aluminum alloy 2056 at 250MPa/175°C.

Demonstrating the effect of prior plastic prestrain at room temperature on the creep response of a commercial solid solution alloy, Nimonic 75 (Ref. 13)

Comparison between model predictions incorporating single and multiple damage mechanisms and strain rate data from a 12% Cr steel

Comparison of lifetime predictions under two-step loading, using “strain hardening” and CDM methods. (a) 170 MPa to 250 MPa; (b) 250 to 170 MPa.

Tables

Errata

Discussions

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