Nkk Corporation

Shinanogawa Technopolis Development Organization

Hiroshi Iizumi

Chiaki Ouchi

Masaru Kobayashi

Hideaki Fukai

Atsushi Ogawa

Masakazu Niikura

Seiichi Suzuki

A titanium alloy sheet having a surface roughness satisfying the relationship Ra&lE;2 &mgr;m in all directions and a surface waviness satisfying the relationship W,&lE;10 &mgr;m shows excellent workability because of the small anisotropy with respect to mechanical properties such as bending properties, and also excellent appearance after it is formed into a component. Such surface conditions of titanium alloy sheet can be obtained by acid pickling or grinding and acid pickling after rolling. Pack rolling, especially in which a titanium alloy slab is packed with carbon steels in vacuum by electron beam welding method and then rolled, is preferable. Application of cross rolling to the rolling makes it possible to obtain smaller anisotropy with respect to mechanical properties.

Titanium alloy sheet and production method thereof

A continuous fiber-reinforced Ti-based composite material comprises a Ti alloy matrix containing 3 to 7% by weight of Al, 2 to 5% by weight of v, 1 to 3% by weight of Mo, 1 to 3% by weight of Fe, 0.06 to 0.20% by weight of 0, and the balance of Ti and unavoidable impurities, and SiC continuous fibers arranged within said matrix in one direction.

Continuous fiber-reinforced titanium-based composite material and method

A method for making titanium alloy products comprises the steps of:

Method for making titanium alloy products

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Kawasaki, Japan

Hiroshi Iizumi