Rmi Titanium Company

Aluminum Company of America

Rmi Company

Stanley R Seagle

Ronald W Schutz

Amiya K Chakrabarti

George W Kuhlman, Jr

Richard L Fisher

Howard B Bomberger, Jr

Patrick A Russo

A cost effective process is provided for the production of a clad reactive metal plate composite that contains a complete metallurgical bond between a reactive metal or metal alloy backer plate and the cladding layer which is employed in the present invention as the cladding plate. The full metallurgical bond is achieved in the present invention by maintaining a small gap between the cladding plate and the backer plate in the composite assembly. The small gap, which optionally may contain a evacuation nipple, may be obtained by placing shims composed of the backer plate material between the backer plate and the cladding plate in the composite assembly prior to sealing and hot working the assembly. Also, provided is a highly corrosion resistant clad reactive metal plate composite which comprises a reactive metal or metal alloy cladding layer that is completely bonded to a reactive metal or metal alloy backer plate through a metallurgical bond.

Clad reactive metal plate product and process for producing the same

The invention relates to a process for improving the aging response and uniformity in a beta titanium alloy comprising the steps of: (a) cold working said beta titanium alloy to at least about 5% so that a reasonable degree of recrystallization can be obtained during subsequent solution treatment; (b) pre-aging said cold worked alloy at about 900.degree. to about 1300.degree. F. for a time in excess of about 5 minutes to obtain a pre-aged alloy; (c) solution treating said pre-aged alloy at a time and temperature to achieve a reasonable degree of recrystallization of said pre-aged alloy above the beta transus; and (d) aging said solution treated alloy at temperature and times to achieve a pre-aged, solution treated and aged beta titanium alloy substantially in a state of metallurgical equilibrium.

Aging response and uniformity in beta-titanium alloys

The present invention relates to a process in which a metal or metal alloy is thermal spray coated onto a base alloy material prior to hot working. More specifically, the invention relates to the use of plasma coating of titanium over a titanium alloy plate for improved hot workability. This combination allows the crack-sensitive base alloy to be rolled with a minimum of surface and edge cracks. In addition, by using a plasma sprayed titanium coating there is a reduction in the roll force required to reduce the material during the hot working process.

Enhancement of hot workability of titanium base alloy by use of thermal

The invention relates to a process for the removal of oxides and/or oxygen which are formed on the surface of the casting during the investment casting process to levels that are comparable to those found within the bulk of the metal casting thus reducing the inherent hardness of the surfaces of the casting. More specifically, the invention relates to a process for removing oxide layers from titanium casting using an alkaline earth deoxidizing agent.

Removal of oxide layers from titanium castings using an alkaline earth

The invention relates to a process for improving the aging response and uniformity in a beta titanium alloy comprising the steps of:

Method for improving aging response and uniformity in beta-titanium

High performance Ti-6A1-4V alloys skewed with oxygen and nitrogen and useful as impellers are provided and a process for their preparation.

Processing for high performance TI-6A1-4V forgings

High performance Ti-6A1-4V forgings

A method of producing a hot-worked titanium product in which a minute quantity of a workability-enhancing agent is incorporated in the melting charge. The agent may be yttrium, a rare earth of atomic number 57 to 71, or combinations thereof, and may be in the form of the metal itself or a compound, such as the oxide. The agent has the effect of making bodies of the material more workable; that is, more drastic working is achieved without reheating of the material between hot-working steps, yet any significant surface-cracking is avoided in the product.

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Warren, OH, United States of America

Stanley R Seagle