INFLUENCE OF ZR ADDITION ON THE CORROSION BEHAVIOR OF THE Ni3AI INTERMETALLIC COMPOUNDS

Autor:	Tien-Tsai Chang, Tung-Han Chuang
Rok vydání:	1997
Předmět:	Corrosion potential Materials science Metallurgy Alloy General Engineering Intermetallic engineering engineering.material Electrochemistry Corrosion current density Corrosion behavior Corrosion
Zdroj:	Journal of the Chinese Institute of Engineers. 20:623-628
ISSN:	2158-7299 0253-3839
DOI:	10.1080/02533839.1997.9741871
Popis:	The effect of Zr addition on the corrosion behavior of the Ni3Al alloy in an aerated 3.5% NaCl solution has been studied by means of electrochemical methods. The results showed that the corrosion potential of Ni3Al first tended to be noble and then became active with an increase in Zr content. The corrosion current density first decreased and then increased as the Zr content increased. Also, the addition of Zr increased pitting resistance and the stability of passive film. Thus, the resistance in corrosion behavior of the alloys first increased and then decreased with an increase in Zr content. However, the addition of Zr did not alter the morphology of intergranual corrosion in the pits.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::845c714bc55f3119b702351be2ae6fd1 https://doi.org/10.1080/02533839.1997.9741871 Zobrazit plný text záznamu