GE stainless steels
AssigneeNational Tsing Hua University
InventorSwe-Kai Chen
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Abstract
A Ge-containing stainless steel is disclosed. The disclosed Ge-containing stainless steel is principally composed of Fe and Cr. Pitting corrosion is significantly reduced when a certain amount of Ge is added. When more Ge is added, the pitting corrosion is reduced to a minimum level.
Claims2
A Ge-containing stainless steel, which is made by melting a raw material consisting of 16 to 25 wt % of Cr, 0.1 to 1 wt % of Mn, 0.1 to 1 wt % of Si, 8.72 to 12 wt % of Ge, and Fe with its weight percentage varying depending on weight percentages of Cr, Mn, Si, and Ge, and then cooling the melted raw material to obtain the Ge-containing stainless steel, wherein the Ge-containing stainless steel has no pitting corrosion when the Ge-containing stainless steel is immersed in a sodium chloride solution.
A Ge-containing stainless steel, which is made by melting a raw material consisting of 0 to 16 wt % of Cr, 0.1 to 1 wt % of Mn, 0.1 to 1 wt % of Si, 8.72 to 20 wt % of Ge and Fe with its weight percentage varying depending on weight percentages of Cr, Mn, Si, and Ge, and then cooling the melted raw material to obtain the Ge-containing stainless steel, wherein the Ge-containing stainless steel has no pitting corrosion when the Ge-containing stainless steel is immersed in a sodium chloride solution.
Dependencies are inferred from the claim text.