Actions for Influence of Iron Oxide Particles on the Strength of Ball-Milled Iron [electronic resource].

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Influence of Iron Oxide Particles on the Strength of Ball-Milled Iron [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2005.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDF-file: 26 pages; size: 0.9 Mbytes
Additional Creators
Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Detailed microstructural and mechanical property studies of ball-milled iron, in the powder and consolidated states, are reviewed and assessed. The analyses cover three and one-half orders of magnitude of grain size (from 6 nm to 20 mm) and focus on the influence of oxide particles on the strength. The study includes the early work of Koch and Yang, Kimura and Takaki and continues with the more recent work of Umemoto et al and Belyakov, Sakai et al. It is shown that the major contributors to strength are the nanooxide particles. These particles are created by adiabatic shear banding during ball-milling leading to a bimodal distribution of particles. The predicted strength from particles, σ{sub p}, is given by σ{sub p} = B · (D*{sub S}){sup -1/2} where D*{sub S} is the surface-to-surface interparticle spacing, and B = 395 MPa · {micro}m{sup -1/2}. A model is proposed that accounts for the influence of the bimodal particle size distribution on strength.
Report Numbers
E 1.99:ucrl-jrnl-218026
ucrl-jrnl-218026
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Note
Published through SciTech Connect.
12/07/2005.
"ucrl-jrnl-218026"
Materials Transactions, vol. 47, no. 06, June 15, 2006, pp. 1508-1517 47 06 ISSN 1345-9678 FT
Syn, C K; Lesuer, D R; Sherby, O D.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14446388