Nanostructured steels
Superior strength of carbon steels
Severe plastic deformation allows to produce in carbon steels a nanocomposite structure: a homogeneous fine –
Properties of steel 45:
State | σв, MPa | σ0.2, MPa | δ, % | HV, GPa |
As- |
863 | 770 | 7 | 3 |
Quenching (martensite) | 2192 | 2000 | 0.4 | 8.15 |
SPD (nanocomposite) | 2649 | 2397 | 3 | 9.81 |

Transformation of the martensitic phase to nanocomposite
High-
A change in the temperature to severe plastic deformation leads to the producing of different phase compositions in steel: from a fully austenite microstructure to 80 % martensite. Both of these structure types ensure an enhanced strength of steel, while maintaining high ductility.

The producing of a high-
Main publications:
1. Yu. Ivanisenko, W. Lojkwski, R.Z. Valiev, H.-
2. M.V. Karavaeva, S.K. Nurieva, N.G. Zaripov, A.V. Ganeev, R.Z. Valiev, Microstructure and mechanical properties of medium-
3. R.Z. Valiev, G.V. Klevtsov, N.A. Klevtsova, M.V. Fesenyuk, M.R. Kashapov, M.V. Karavaeva, A.G. Raab, A.V. Ganeev, Effect of the regimes of equal-