Influence of aged Ti-15V-3Cr-3Sn-3Al alloy microstructure on chemical and electrochemical behavior in the Kroll reagent for metallographic etching
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Data
2003-01-01
Autores
Ribeiro, R. B.
Hein, LRD
Robin, A.
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Carl Hanser Verlag
Resumo
The chemical and electrochemical behaviour of the Ti-1 5V-3Cr-3Sn-3Al alloy in Kroll reagent has been studied after ageing at 350-600degreesC, to optimise metallographic etching. Etching tests and polarisation curves showed that samples aged at higher temperatures have been more susceptible to corrosion. It has been attributed to the formation of intra- and intergranular alpha-phase precipitates during ageing.
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Praktische Metallographie-practical Metallography. Munich: Carl Hanser Verlag, v. 40, n. 1, p. 16-23, 2003.