Percorrer por autor "Santos, Luiz"
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- Characterization techniques of a shape memory nickel titanium alloyPublication . Andrade, Carlos A.R.; Soares, Filipe de Almeida da Silva; Nobrega, Glauco; Hilário, Jean César; Santos, LuizThis paper presents a characterization processes study of metallic alloys, more specifically the shape memory alloys (SMA) composed by Nickel and Titanium (NiTinol). Two different wire suppliers were studied, starting with metallographic analysis until observe the contours of the grain wires. Differential scanning calorimetry (DSC) test was also performed to obtain phase transformation temperatures of the NiTinol alloys. Finally, after several tensile tests, some results were obtained for stresses, strains, elasticity modules and maximum rupture deformation.
- Técnicas de caracterização de uma liga de Níquel-Titânio com memória de formaPublication . Andrade, Carlos A.R.; Soares, Filipe de Almeida da Silva; Nobrega, Glauco; Hilário, Jean César; Santos, LuizThis paper presents a study about some characterization processes of metallic alloys, more specifically shape memory alloys composed by Nickel and Titanium. For the study, the wires were obtained by two different suppliers. Initially, a metallographic analysis was performed where the contours of the grain of the wires could be observed. Differential scanning calorimetry (DSC) testing was also performed to obtain the phase transformation temperatures of NiTi alloys. Finally, after tensile tests, results were obtained for stresses, modulus of elasticity and maximum rupture deformation.