Properties of Newly Developed Electrogalvanized Steel Sheet with Mg Containing Phosphate Film

Kiyokazu ISHIZUKA; Kimitaka HAYASHI; Hidetoshi SHINDO; Masao KUROSAKI; Teruaki YAMADA; Mikio NAKATSUKASA; Shuuji OHSAKO; Takahisa OGAWA

doi:10.2355/tetsutohagane1955.89.1_103

Kiyokazu ISHIZUKA, Kimitaka HAYASHI, Hidetoshi SHINDO, Masao KUROSAKI, Teruaki YAMADA, Mikio NAKATSUKASA, Shuuji OHSAKO, Takahisa OGAWA

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Keywords: electrogalvanized steel, phosphate film, friction coefficient, corrosion resistance

JOURNAL OPEN ACCESS

2003 Volume 89 Issue 1 Pages 103-108

DOI https://doi.org/10.2355/tetsutohagane1955.89.1_103

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Abstract

The press formability and corrosion resistance of electrogalvanized steel with Mg containing phosphate film were investigated. (1) The phosphate film could reduce the friction coefficient of electrogalvanized steel sheet and good press formability was obtained. It was seemed that the morphology of the phosphate film could be effective on friction property. (2) The phosphate film could improve the perforation corrosion resistance of electrogalvanized steel sheet. It was suggested that the film could delay the start of Zn corrosion and alsocould stabilize the corrosion products of Zn.

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