Structural Properties of FCC and HCP phases in the Fe-Mn-Si system: A neutron diffraction experiment

J. MARTÍNEZ; G. AURELIO; J. CUELLO; S.M. COTES; J. DESIMONI

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

Elsevier

Lugar: The Netherlands; Año: 2006 vol. 437 p. 323 - 327

0921-5093

A neutron diffraction study was carried out on metastable FCC and HCP phases in the Fe?Mn?Si system using small pieces of material inside a rotating device to simulate a polycrystalline randomly oriented sample. The experiments were performed on a set of Fe?Mn?Si alloys (16 at.%≤CMn ≤32 at.% and 0 at.%≤CSi ≤12 at.%). FCC and HCP phases were retained at room temperature by a fast quench into water and a subsequent cooling down in liquid nitrogen. The effect of Mn and Si on lattice parameters, average volume per atom and phase fractions were established. The cell parameters for both p