Method for making a high temperature, high pressure, erosion and

Details Method for making a high temperature, high pressure, erosion and Method for making a high temperature, high pressure, erosion and

1997-11-14

1999-08-10

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148521, 148527, 148534, 427250, 4273837, C23C 1000, C23C 1416

Patent

active

059353511

ABSTRACT:
The present invention is a metallic composite which is resistant to erosion and corrosion at the high temperatures and pressures which are encountered in gun tubes, including projectile launchers. This composite comprises a ductile layer of rhenium or a rhenium alloy containing more than 20 percent rhenium, and a layer of a lower cost high strength material such as steel, nickel, nickel alloy, cobalt, or cobalt alloy. A solid solution of the two metals is formed between the two layers making a metallurgical bond. The metallurgical bond may be enhanced through the use of a bond promoter having solubility with both metallic layers.

REFERENCES:
patent: 3637374 (1972-01-01), Holzi et al.
patent: 4526814 (1985-07-01), Shankar et al.
patent: 4577431 (1986-03-01), Siemers et al.
patent: 5645893 (1997-07-01), Rickerby et al.

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