Resumen

This paper studies the influence of the microstructure of a tempered AISI 1045 steel, containing Bainite as the main microconstituent, in the behavior of the stresses (S_xx, S_yy), Von Mises stress, plastic strain and equivalent strain. The Computational modeling 2D, represents the conditions in an experimental nano-scratch test way. The creation of the mesh in function of the microstructure is done in the OOF2 software, and then the remaining parts that make up the system, by the finite element ABAQUS software. The model consider indenter, elasto-plastic propThis paper studies the influence of the microstructure of a tempered AISI 1045 steel, containing Bainite as the main microconstituent, in the behavior of the stresses (S_xx, S_yy), Von Mises stress, plastic strain and equivalent strain. The Computational modeling 2D, represents the conditions in an experimental nano-scratch test way. The creation of the mesh in function of the microstructure is done in the OOF2 software, and then the remaining parts that make up the system, by the finite element ABAQUS software. The model consider indenter, elasto-plastic properties within the microconstituents, and the load variations and friction coefficients. The results show concentrators of stresses on the grains border of Upper Bainite and Martensite, presenting yield failure on the material over some scratch regions, higher strains, and normal stress more significant in comparation to shear stress and the ideal substrate.erties within the microconstituents, and the load variations and friction coefficients. The results show concentrators of stresses on the grains border of Upper Bainite and Martensite, presenting yield failure on the material over some scratch regions, higher strains, and normal stress more significant in comparation to shear stress and the ideal substrate.