Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Comparative study of physical and simulated tensile tests of steels SA-516 Gr.70, SA-240 TP.316L and SA-516 Gr.70 + SA-240 TP.316L cladded by rolling process
Submission Author:
Bruna Nascimento , MG
Co-Authors:
Jose Rubens Gonçalves Carneiro, Bruna Nascimento
Presenter: Bruna Nascimento
doi://10.26678/ABCM.COBEM2017.COB17-1667
Abstract
The cladding process involves depositing a dissimilar material, called coating, on the surface of a base material, called substrate, resulting in a strong metallurgical bond at the bimetallic interface, so that the sheets are integrally adhered. This arrangement has been widely used in equipment constructions that requires different properties, which would not be possible using only one material. This paper presents a comparative study of the combination of two materials’ properties, mechanically joined by hot rolling and the same materials in the isolated condition. It was evaluated the mechanical properties obtained from tensile test and compared with the structural simulation of samples by the finite element method (FEM), also analyzed the morphology of the fracture of the test samples that were used stainless steel SA-240 TP.16L as coating and steel SA-516 Gr.70 as a base metal. It was observed that both materials were work-hardening during the rolling process and, consequently, there were changes in the mechanical properties. It was observed that the material that had the greatest structural influence on the composite was the stainless steel, so the bimetallic plate had the yield and rupture limits close to the stainless steel, despite the lower thickness. The fracture analyses shows an adherent interface and a fragile behavior of the stainless steel. The methodology used for modeling and simulation was highly efficient presenting small errors in relation to the physical tests.
Keywords
Clad, Tensile Test, finit elements method, stainless steels, carbon steels
