Abstract
The main parameters of the microstructure of TRIP (TRansformation Induced Plasticity) composites with an austenitic matrix and a ZrO2 zirconium-dioxide reinforcing phase subjected to plastic deformation of different degrees (compressive uniaxial load) are studied by neutron diffraction and small-angle neutron scattering. A series of composite material samples with different contents of the ZrO2 ceramic phase (0, 10, 20, 30, and 100 wt %) are prepared by the powder metallurgy method using hot pressing. In the region of plastic deformation at load values above 650 MPa, two phases are observed in the austenitic matrix: cubic α'-martensite and hexagonal ε-martensite. Data on the lattice strains of the observed phases, dislocation density in the austenitic matrix, and characteristic sizes of the martensitic-phase particles are obtained.
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Original Russian Text © G.D. Bokuchava, Yu.E. Gorshkova, I.V. Papushkin, S.V. Guk, R. Kawalla, 2018, published in Poverkhnost’, 2018, No. 3.
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Bokuchava, G.D., Gorshkova, Y.E., Papushkin, I.V. et al. Investigation of Plastically Deformed TRIP-Composites by Neutron Diffraction and Small-Angle Neutron Scattering Methods. J. Surf. Investig. 12, 227–232 (2018). https://doi.org/10.1134/S1027451018020052
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DOI: https://doi.org/10.1134/S1027451018020052