| 简介 |
This titanium product includes a base metal, and a complex oxide film formed on the surface of the base metal. The base metal has a chemical composition consisting of, by mass %, platinum group elements : 0 to 0.15%, rare earth elements : 0 to 0.1%, and a balance : Ti and impurities. The complex oxide film contains a complex oxide of Ti and one or more elements selected from La, Ce, Nd, Sr and Ca, and has a thickness of 1 to 20 nm. The average grain size at the base metal surface is preferably from 20 to 300 μm. |
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