Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Aero Engines, Ltd.

Shintaro Sobu

Kentaro Shindo

Tadayuki Hanada

Kenji Suzuki

A manufacturing method of oxidation resistant alloy includes: producing a first formed member by applying compression forming to metal powder; and applying compression forming to the first formed member in a state in which the first formed member is covered with alloy powder different from the metal powder. The oxidation resistance of the major constituent of the alloy powder is higher than the oxidation resistance of the major constituent of the metal powder. Producing the first formed member may include applying the compression forming to the metal powder without melting the metal powder. Applying the compression forming to the first formed member may include: producing a second formed member by applying compression forming to the alloy powder without melting the alloy powder; and sintering the second formed member.

Oxidation resistant alloy and manufacturing method of oxidation resistant alloy

A hydrogenation-dehydrogenation method for a TiAl alloy includes performing hydrogenation treatment of the TiAl alloy in an environment of a set temperature equal to or higher than a temperature at which phase transformation to a &#x3b2; phase starts; and performing dehydrogenation treatment of the TiAl alloy which has been subjected to the hydrogenation treatment. The set temperature ranges from 1,100&#xb0; C. to 1,600&#xb0; C.

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Tokyo, Japan

Shintaro Sobu