Strength and Fracture Mechanisms of Nanostructured Metallic Materials Under Single Kinds of Loading


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The effect of nanostructuring on the strength and fracture mechanism of materials possessing different crystal lattices is analyzed on the basis of available reports and experimental data of the authors. The structure, the hardness, the crack resistance, and the strength and ductility characteristics of steel 10 (bcc lattice), aluminum alloy AK4-1 (fcc lattice), austenitic steel AISI 321 (fcc lattice) are studied after equal channel angular pressing (ECAP) and those of Grade 4 titanium (hcp lattice) are studied after a ECAP-conform process (ECAP-C). It is shown that the ultrafine-grained (UFG) structure produced by the ECAP affects ambiguously the static crack resistance of the materials studied. The type of the crystal lattice influences substantially the temperature behavior of the impact toughness of the studied materials with UFG structure.

作者简介

G. Klevtsov

Tolyatti State University

编辑信件的主要联系方式.
Email: Klevtsov11948@mail.ru
俄罗斯联邦, Tolyatti

R. Valiev

Institute of Physics of Advanced Materials, Ufa State Aviation Technical University (UGATU); Laboratory for Mechanics of Bulk Materials, St. Petersburg State University

Email: Klevtsov11948@mail.ru
俄罗斯联邦, Ufa; St. Petersburg

N. Klevtsova

Tolyatti State University

Email: Klevtsov11948@mail.ru
俄罗斯联邦, Tolyatti

N. Zaripov

Institute of Physics of Advanced Materials, Ufa State Aviation Technical University (UGATU)

Email: Klevtsov11948@mail.ru
俄罗斯联邦, Ufa

M. Karavaeva

Institute of Physics of Advanced Materials, Ufa State Aviation Technical University (UGATU)

Email: Klevtsov11948@mail.ru
俄罗斯联邦, Ufa

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