Structural strength and corrosion resistance of nanostructured steel 10

The ultrafine-grain steel 10 obtained by equal-channel angular pressing at 200°C is investigated. The structural strength of the steel samples is analyzed, with tensile tests and assessment of the impact strength and crack resistance. The strength of steel increases by a factor of 2.5 after equal-ch...

Full description

Saved in:
Bibliographic Details
Published in:Steel in translation 2014-06, Vol.44 (6), p.418-421
Main Authors: Valiev, R. Z., Klevtsov, G. V., Klevtsova, N. A., Kushnarenko, V. M., Ganeev, A. V.
Format: Article
Language:English
Subjects:
Assessments
Chemistry and Materials Science
Corrosion rate
Crack propagation
Ductile brittle transition
Equal channel angular pressing
Materials Science
Nanostructure
Strength
Structural steels
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The ultrafine-grain steel 10 obtained by equal-channel angular pressing at 200°C is investigated. The structural strength of the steel samples is analyzed, with tensile tests and assessment of the impact strength and crack resistance. The strength of steel increases by a factor of 2.5 after equal-channel angular pressing. In the specified conditions, such treatment does not change the cold-brittleness threshold of steel 10. However, the interval of ductile-brittle transition becomes narrower. Calculations show that the crack resistance K 1C of steel 10 with an ultrafine grain structure is somewhat greater than that of the regular steel. The corrosion rate of uncoated steel 10 samples after equal-channel angular pressing is somewhat greater than in the initial state. However, the corrosion rate of coated steel 10 samples after equal-channel angular pressing is half that in the initial state. The significance of these findings is discussed.
ISSN:0967-0912
1935-0988
DOI:10.3103/S0967091214060175