Influence of the mechanical stability of retained austenite on the damaging micromechanisms in TRIP-assisted multiphase steels

Furnemont, Q.;Jacques, Pascal;Pardoen, Thomas;Delannay, Francis
(2000) Proceedings of Conference on Advances in Mechanical Behavior, Plasticity and Damage (EUROMAT 2000) — Location: Tours, France (7.November.2000)

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Deals with the damaging of transformation induced plasticity (TRIP)-assisted multiphase steels. These steels present a multiphase microstructure containing bainite and retained austenite grains dispersed in a ferrite matrix. During straining, the retained austenite (metastable at room temperature) transforms to martensite and thus brings about the well-known TRIP effect. Our aim was to better understand the damage properties of these steels. Two steels with different chemical compositions and heat treatment conditions were studied as regard to damaging. We have established that the behaviour of these steels regarding damaging processes depends more on the proportion of the non-intercritical phases in their microstructure than on the mechanical stability of austenite.
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Furnemont, Q., Jacques, P., Pardoen, T., & Delannay, F. (2000). Influence of the mechanical stability of retained austenite on the damaging micromechanisms in TRIP-assisted multiphase steels. In Miannay, D.; Coasta, P.; Francoise, D.; Pineau, A.; (ed.), Advances in Mechanical Behaviour, Plasticity and Damage. Proceedings ofEUROMAT 2000 (p. Vol. 2, p. 859-64). Elsevier science. https://hdl.handle.net/2078.5/231233