The Superstrength of Nanostructured Metallic Materials: Their Physical Nature and Hardening Mechanisms

• Published in: Physics of metals and metallography Vol. 123; no. 12; pp. 1272 - 1278
• Main Authors: Valiev, R. Z., Usmanov, E. I., Rezyapova, L. R.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2022; Springer; Springer Nature B.V
• Subjects: Analysis; Chemistry and Materials Science; Grain boundaries; Grain Boundary Segregation; Hardening; Materials Science; Metallic Materials; Plastic deformation; Precipitates; Strength and Plasticity; Ultrafines; strength of materials; hardening mechanisms; severe plastic deformation; nanostructured metals and alloys

Ultrafine grained (UFG) metallic materials obtained by severe plastic deformation (SPD) typically exhibit very high strength properties, whose values are much higher than those predicted by the well-known Hall–Petch relation. Our studies show that the basis for this to occur is that SPD not only for...