Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Study of mechanical behavior at cryogenic temperature of AISI 430 with different strain rates
Submission Author:
Larissa Ohana Felicio , PR
Co-Authors:
Maxwell Azevedo, Maicon Crivoi, Marcel Tadashi Izumi, Ricardo Sanson Namur, Osvaldo Cintho, Larissa Ohana Felicio
Presenter: Larissa Ohana Felicio
doi://10.26678/ABCM.COBEM2017.COB17-5145
Abstract
Recent researches about cryogenic deformation show a possibility of improvement of mechanical properties when the metal is submitted to different strain rate and temperature conditions. In this research, specimens of AISI 430 were tensile tested in order to identify the conditions that allow the highest improvement of strength and ductility. Microstructural characterization was carried out by conventional metallography. Fractography images were obtained using a scanning electron microscope with field emission gun (SEM-FEG). It was observed that fracture behavior of AISI 430 is highly dependent of strain rate at cryogenic temperature, where partially ductile behavior, with dimples at fracture surface, was observed of lower strain rates.
Keywords
AISI 430, Cryogenic deformation, Fractography, tensile tests, Strain rate
