Effect of martensite volume fraction on cyclic plastic deformation behavior of dual phase steel: micromechanics simulation study

• DOI: 10.1016/j.jmrt.2019.06.022
• Publication Date: 2019-07-06T00:47:39Z
• Authors: Amit Kumar Rana; Surajit Kumar Paul; Partha Pratim Dey
• Keywords: Micromechanics; Dual-phase steel; Volume fraction; Strain hardening exponent; Strain partitioning; Hardening (computing)

The cyclic plastic deformation of an archetypal microstructure dual phase steels has been examined via micromechanics modelling based on representative volume elements technique. steel soft ferrite – matrix with hard martensite islands, which are distributed in a discrete manner. In the field automobile industries, suitable combination strain hardening, strength and ductility, their lean represent them as economically desire option for huge multiple lightweight options. this numerical approach, different microstructures micromechanical were constructed to detailed examination analysis tensile response steels. Due distinct difference stress–strain responses phases, incompatibility between matrix-softer island-harder arises during straining. effect partitioning studied present investigation. Apart from this, fraction steels, distribution individual phases inhomogeneity at microstructural level have systematically investigated.