Caracterização microestrutural e resistência à corrosão da liga Fe-25Cr-Xti
Microstructural characterization and corrosion resistance of Fe-25Cr-xti alloy
DOI:
https://doi.org/10.34117/bjdv8n11-034Keywords:
Titânio, microestrutura, refino de grão, camada passiva, corrosão localizadaAbstract
A adição de ti em aço inoxidável ferrítico possui efeito benéfico no refino de grão e propicia melhoria na resistência à corrosão. O efeito da incorporação de 0,4 e 0,6% de Ti na liga Fe-25Cr foi investigado através de técnicas de microscopia, ensaio de imersão com variação de temperatura e ensaio eletroquímico. Os resultados indicam maior refino de grão na concentração de 0,4% de Ti, além disso foi observado que o titânio possui papel importante na melhoria da resistência à corrosão por frestas e por pites.
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