Anodic Dissolution of Spheroidal Graphite Cast Iron with Different Pearlite Areas in Sulfuric Acid Solutions

Autor:	Yoshikazu Miyata, Yuki Kuwahara, Shukuji Asakura, Tadashi Shinohara, Takao Yakou, Keiichi Shiimoto
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	International Journal of Corrosion, Vol 2013 (2013)
Druh dokumentu:	article
ISSN:	1687-9325 1687-9333
DOI:	10.1155/2013/741378
Popis:	The rate equation of anodic dissolution reaction of spheroidal graphite cast iron in sulfuric acid solutions at 298 K has been studied. The cast irons have different areas of pearlite. The anodic Tafel slope of 0.043 V decade−1 and the reaction order with respect to the hydroxyl ion activity of 1 are obtained by the linear potential sweep technique. The anodic current density does not depend on the area of pearlite. There is no difference in the anodic dissolution reaction mechanisms between pure iron and spheroidal graphite cast iron. The anodic current density of the cast iron is higher than that of the pure iron.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/0cb5522e8e8b4892af36d94b94e8dd20 Zobrazit plný text záznamu Plný text View record in DOAJ