Structure and mechanical properties of iron subjected to surface severe plastic deformation by friction: I. Structure formation

• Published in: Russian metallurgy Metally Vol. 2010; no. 4; pp. 249 - 257
• Main Authors: Yurkova, A. I., Milman, Yu. V., Byakova, A. V.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-04-2010; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Deformation; Dynamic recrystallization; Friction; Grain refinement; Iron; Materials Science; Mechanical properties; Metallic Materials; Nanocrystals; Physical Foundations of Strength and Plasticity; Plastic deformation; Dynamic Recrystallization; RUSSIAN Metallurgy; Severe Plastic Deformation; Armco Iron; Dislocation Density
• ISSN: 0036-0295; 1555-6255; 1531-8648
• DOI: 10.1134/S0036029510040014

The severe plastic deformation of armco iron by friction is experimentally studied, and the results obtained are used to show that efficient grain refinement is possible in the temperature ranges of warm and hot deformation. A nanocrystalline structure forms only under dynamic recrystallization conditions during hot deformation, which is ensured by deformation in different directions at a rate higher than 10
2
s
−1
.