Severe Plastic Deformation of Amorphous Alloys

Abstract:

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The structure and mechanical properties of amorphous alloy Ni44Fe29Co15Si2B10 after severe plastic deformation (SPD) in Bridgman chamber at the different temperatures (77 and 298 K) have been studied. It is shown that the early stages of the SPD of amorphous alloy cause a noticeable decrease in microhardness HV and significant changes in the physical properties. With increasing the value of SPD the transition from inhomogeneous to homogeneous (or to qualitatively different) mode of plastic flow is observed, which is accompanied by the effects of homogeneous nanocrystallization. The nanoparticle size does not exceed 10 nm. It is established that the thermally activated nanocrystallization processes can occur at very low temperatures (77 K).

Info:

Periodical:

Materials Science Forum (Volumes 584-586)

Edited by:

Yuri Estrin and Hans Jürgen Maier

Pages:

227-230

DOI:

10.4028/www.scientific.net/MSF.584-586.227

Citation:

A. M. Glezer et al., "Severe Plastic Deformation of Amorphous Alloys", Materials Science Forum, Vols. 584-586, pp. 227-230, 2008

Online since:

June 2008

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Price:

$35.00

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