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- W2286864522 abstract "Microstructural characterization of steels is normally performed using optical and scanning electron microscopy which allows identifying the most important phases and constituents in steels. Nevertheless, the microstructural complexity of some constituents during continuous cooling hinders the characterization of them; especially bainitic and martensitic microstructures provide rich morphology characteristics tough to solve properly. In this sense, atomic force microscopy was applied in order to provide complementary information to optical and scanning electronic microscopy in continuous cooling microstructural constituents of a low carbon and a Nb microalloyed low carbon steels. The samples were austenitized, some of them were quenched directly from austenitization temperature and others were cooling to Ar3 and Ar1 temperatures and then quenched. The samples quenched from austenitization temperature showed predominantly bainitic and martensitic microstructures, some microstructural characteristics were only elucidated with the combination between scanning electron microscopy and atomic force microscopy. On the other hand, the samples quenched from Ar 3 temperature showed polygonal ferrite and martensite morphologies. Atomic force microscopy has also indicated the occurrence of bainitic ferrite. Concerning samples quenched from Ar1 temperature, the microstructure was essentially ferrite and fine perlite." @default.
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- W2286864522 date "2015-06-01" @default.
- W2286864522 modified "2023-09-27" @default.
- W2286864522 title "CARACTERIZAÇÃO MICROESTRUTURAL DE AÇOS BAIXO CARBONO POR MICROSCOPIA DE FORÇA ATÔMICA" @default.
- W2286864522 cites W2309273798 @default.
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