Research/Patents/US 4710247
US 4710247

RAPIDLY SOLIDIFIED TRI-NICKEL ALUMINIDE BASE ALLOY

Assignee

Filed

Mar 14, 1986

Granted

Dec 1, 1987

Location

LATHAM NY US

Abstract

A method for achieving both improved strength and improved ductility in intermediate phases is provided. The method, briefly stated, comprises the steps of providing a melt whose composition substantially corresponds to that of a preselected intermetallic phase having a crystal structure of the Ll2 type, such as nickel alumininde, modified with from about 0.01 to 2.5 atomic percent boron, and modified further with cobalt substituent metal and rapidly solidifying the melt at a cooling rate of at least about 103 ° C./second to form a solid body, the principal phase of which is of the Ll2 type crystal structure in either its ordered or disordered state.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 10, 1986

Rescinded

Feb 19, 1987

Duration

4 months

Inventor

  • 1SHYH-CHIN HUANG

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records