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Study of Reinforcing Mechanisms in TRIP ‐ M atrix Composites under Compressive Loading by Means of Micromechanical Simulations
Author(s) -
Prüger Stefan,
Mehlhorn Lars,
Mühlich Uwe,
Kuna Meinhard
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201200323
Subject(s) - materials science , composite number , composite material , cubic zirconia , phase (matter) , diffusionless transformation , transformation (genetics) , matrix (chemical analysis) , deformation (meteorology) , particle (ecology) , austenite , micromechanics , microstructure , ceramic , biochemistry , chemistry , oceanography , organic chemistry , gene , geology
TRIP‐matrix composites consist of austenitic steel and a partially stabilized zirconia, which yields a composite that can undergo a martensitic phase transformation in both components. Numerical analysis of the deformation and transformation behavior of such a composite is carried out by means of unit cell studies. The micromechanical simulations are conducted to separate and evaluate the two reinforcing mechanisms, namely the particle strengthening effect and the transformation effect in the partially stabilized zirconia. It is found that the phase transformation proceeds in a heterogeneous manner both in the matrix and the inclusion. The degree of inhomogeneity of transformation inside the inclusion is controlled by the interface strength.