Journal of Materials Science

, Volume 46, Issue 24, pp 7725–7736 | Cite as

Chemical nano-scale homogeneity of austenitic CrMnCN steels in relation to electronic and magnetic properties

  • B. D. Shanina
  • A. I. Tyshchenko
  • I. N. Glavatskyy
  • V. V. Runov
  • Yu N. Petrov
  • H. Berns
  • V. G. GavriljukEmail author


Measurements of conduction electron spin resonance, temperature-dependent magnetization, small angle neutron scattering, and transmission electron microscopy were used for the analysis of chemical nonhomogeneity in austenitic steels with carbon + nitrogen or carbon only. It is shown that all studied steels are characterized by a nonhomogeneous distribution of alloying elements on the fine scale: from 3 to 5 nm in CrMnCN steels to about 30 nm in MnC Hadfield type steel. In the CN steels, their chemical homogeneity is improved by decreasing the C/N ratio. A ferromagnetic-type temperature behavior is observed in the CN steels at temperatures below 86 K, which is attributed to the blocking of magnetic moments of superparamagnetic clusters. The short-range decomposition of all studied steels results in a different splitting of dislocations, which corresponds to two different values of the stacking fault energy.


Electron Paramagnetic Resonance Conduction Electron Stack Fault Energy Austenitic Steel Small Angle Neutron Scattering 


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • B. D. Shanina
    • 1
  • A. I. Tyshchenko
    • 2
  • I. N. Glavatskyy
    • 2
    • 3
  • V. V. Runov
    • 4
  • Yu N. Petrov
    • 2
  • H. Berns
    • 5
  • V. G. Gavriljuk
    • 2
    Email author
  1. 1.Department of Optics and SpectroscopyV. Ye Lashkarev Institute for Semiconductor PhysicsKievUkraine
  2. 2.Department of Alloyed SteelsG.V. Kurdyumov Institute for Metal PhysicsKiev 142Ukraine
  3. 3.Institute for Complex Magnetic MaterialsHelmholtz Centre Berlin for Materials and EnergyBerlinGermany
  4. 4.Konstantinov St. Petersburg Nuclear Physics InstituteGatchinaRussia
  5. 5.Ruhr University BochumBochumGermany

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