Protasova S.G., Straumal B.B., Schütz G., Goll D., Baretzky B., Mazilkin A.A., Dobatkin S.V., Rodin A.O.
Structure and magnetic properties of iron-carbon nanograined alloys obtained by high pressure torsion.

Russia / Россия

The microstructure, phase composition, Mössbauer spectra and magnetic properties of binary Fe–C alloys with various carbon concentration were studied. After high-pressure torsion (HPT) the grain size was in the nanometre range and phase composition closely approaches the equilibrium corresponding to the HPT temperature and pressure. Measurements of saturation magnetization and Mössbauer effect reveal that the amount of cementite decreases after HPT.