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Spinodal decomposition mechanism study on the duplex stainless steel UNS S31803...
Victor Hugo C. de Albuquerque; Edgard de Macedo Silva; Josinaldo Pereira Leite; Elineudo Pinho de Moura; Vera Lúcia de Araújo FreitasThis work, focuses on the spinodal decomposition mechanism study on the duplex stainless steel duplex USN S31803, composed by austenite (γ) and ferrite (α) phases, at 425ºC and 475oC temperatures by ultrasonic speed measurements. This temperature range is responsible for the transformation mechanism of αinitial phase to α phases (poor in chromium) and α’ (rich in chromium) by spin...
Phase transformations evaluation on a UNS S31803 duplex stainless steel based o...
Edgard de Macedo Silva; Victor Hugo Costa de Albuquerque; Josinaldo Pereira Leite; Antonio Carlos Gomes Varela; Elineudo Pinho de MouraDuplex stainless steel presents special mechanical properties such as, for example, mechanical and corrosion strength, becoming competitive in relation to the other types of stainless steel. One of the great problems of duplex stainless steel microstructural changes study is related to embrittlement above 300ºC, with the precipitation of the ’ phase occurring over the ferritic microstructure. Aimi...
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