ANTUNES, RENATO A.OLIVEIRA, MARA C.L. deFERRAZ, LUCAS C. de C.GONCALES, LETICIA dos R.CORREA, OLANDIR V.2018-11-222018-11-222018ANTUNES, RENATO A.; OLIVEIRA, MARA C.L. de; FERRAZ, LUCAS C. de C.; GONCALES, LETICIA dos R.; CORREA, OLANDIR V. Study of the correlation between microstructure and corrosion resistance of the AZ91D magnesium alloy. <b>Materials Science Forum</b>, v. 930, p. 405-410, 2018. DOI: <a href="https://dx.doi.org/10.4028/www.scientific.net/MSF.930.405">10.4028/www.scientific.net/MSF.930.405</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29267.0255-5476http://repositorio.ipen.br/handle/123456789/29267The aim of the present work was to study the influence of beta phase precipitates content and distribution on the corrosion behavior of the AZ91D magnesium alloy, using samples subjected to solution annealing and aging. The morphology of the beta phase was observed using optical microscopy and scanning electron microscopy. The volume fraction of each phase was also determined. Potentiodynamic polarization tests and immersion tests were carried out, indicating an increase of the corrosion resistance with the volume fraction of the beta phase and its distribution on the grain boundaries of the alpha-phase. Solution annealed samples were more susceptible to corrosion.405-410openAccesscorrosion resistancemicrostructuremagnesium alloysphase transformationsphase studiesprecipitationArtigo de periódico93010.4028/www.scientific.net/MSF.930.405aguardandoSem Percentil15.50