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Compression-compression fatigue of Pd_(43)Ni_(10)Cu_(27)P_(20) metallic glass foam

Wang, Gongyao and Demetriou, Marios D. and Schramm, Joseph P. and Liaw, Peter K. and Johnson, William L. (2010) Compression-compression fatigue of Pd_(43)Ni_(10)Cu_(27)P_(20) metallic glass foam. Journal of Applied Physics, 108 (2). Art. No. 023505. ISSN 0021-8979.

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Compression-compression fatigue testing of metallic-glass foam is performed. A stress-life curve is constructed, which reveals an endurance limit at a fatigue ratio of about 0.1. The origin of fatigue resistance of this foam is identified to be the tendency of intracellular struts to undergo elastic and reversible buckling, while the fatigue process is understood to advance by anelastic strut buckling leading to localized plasticity (shear banding) and ultimate strut fracture. Curves of peak and valley strain versus number of cycles coupled with plots of hysteresis loops and estimates of energy dissipation at various loading cycles confirm the four stages of foam-fatigue.

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Additional Information:© 2010 American Institute of Physics. Received 2 March 2010; accepted 28 May 2010; published online 20 July 2010. The present work is supported by the National Science Foundation (NSF), the Combined Research-Curriculum Development (CRCD) Program under Grant Nos. EEC-9527527 and EEC-0203415, the Integrative Graduate Education and Research Training (IGERT) Program under Grant No. DGE-9987548, the International Materials Institutes (IMI) Program under Grant No. DMR-0231320, the MRSEC Program of the National Science Foundation under Grant No. DMR-0520565, the Office of Naval Research under Grant No. N00014-07-1-1115, the Major Research Instrumentation (MRI) Program under Grant No. DMR-0421219, the Division of Civil, Mechanical, Manufacture, and Innovation Program under Grant No. CMMI-0900271, and the Materials World Network Program under Grant No. DMR-00909037, with Ms. M. Poats, and Dr. C. J. Van Hartesveldt, Dr. D. Dutta, Dr. P. W. Jennings, Dr. L. S. Goldberg, Dr. L. Clesceri, Dr. D. Finotillo, Dr. C. Huber, Dr. C. E. Bouldin, Dr. C. V. Cooper, an Dr. A. Ardell as contract monitors.
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Office of Naval Research (ONR)N00014-07-1-1115
Issue or Number:2
Classification Code:PACS: 81.40.Lm; 81.40.Jj; 81.70.Bt; 62.20.F-; 62.20.D-; 82.70.Rr.
Record Number:CaltechAUTHORS:20100830-114207226
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19710
Deposited By: Tony Diaz
Deposited On:15 Sep 2010 20:04
Last Modified:23 Nov 2020 23:20

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