Titanium material and method for producing titanium material
AssigneeNippon Steel & Sumitomo Metal Corporation
InventorsHayato Kita, Futoshi Katsuki
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Abstract
Disclosed are a titanium material having excellent surface characteristics and a method for readily producing a titanium material having excellent surface characteristics. More specifically, provided is a titanium material including a surface film having a multilayer structure provided with at least two layers, namely a surface layer and an inner layer in contact with the inner side of the surface layer, wherein the surface layer is formed of titanium oxide with a hardness of 5 GPa to 20 GPa, and the inner layer contains at least one of titanium carbide and titanium nitride.
Claims2
A titanium material comprising:
- a surface film having a multilayer structure provided with at least two layers, namely a surface layer and an inner layer in contact with an inner side of the surface layer;
- the surface layer being formed of titanium oxide and having a hardness of 5 GPa to 20 GPa and a thickness of less than 100 nm to prevent interference colors of the titanium material;
- and
- the inner layer containing at least one of titanium carbide and titanium nitride.
Dependencies are inferred from the claim text.