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Mechanical properties of nanocrystalline Ni-20%Fe alloy at temperatures from 300 to 4.2 K

✍ Scribed by E.D. Tabachnikova; A.V. Podolskiy; V.Z. Bengus; S.N. Smirnov; M.I. Bidylo; H. Li; P.K. Liaw; H. Choo; K. Csach; J. Miskuf

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 312 KB
Volume: 503
Category: Article
ISSN: 0921-5093
DOI: 10.1016/j.msea.2008.02.052

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✦ Synopsis

Mechanical properties of the nanocrystalline Ni-20%Fe alloy (the average grain size is 22 nm) have been studied under uniaxial compression at different strain rates (from 10 -5 s -1 to 10 -1 s -1 ) and temperatures from 300 to 4.2 K. Comparison of the strength characteristics, strain and failure peculiarities of the nanocrystalline and coarse-grained structural states of Ni-20%Fe alloys is carried out. Micromechanisms of plastic deformation in this nanocrystalline alloy (including increase of the slip localization at low temperatures) are discussed.

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Mechanical properties of nanocrystalline Ni-20%Fe alloy at temperatures from 300 to 4.2&#xa0;K

✦ Synopsis

Mechanical properties of nanocrystalline Ni-20%Fe alloy at temperatures from 300 to 4.2 K