Composite sintered material having fine particles of hard compou

Details Composite sintered material having fine particles of hard compou Composite sintered material having fine particles of hard compou

1994-02-01

1996-07-09

Walsh, Donald P.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428546, 428551, 428565, 428567, B22F 700

Patent

active

055343538

ABSTRACT:
A composite sintered material of a mixed-phase structure comprising fine particles of hard compound compactly and uniformly dispersed in grains of matrix of titanium or titanium alloy. The material is outstanding in abrasion resistance, strength, toughness, etc., and also has high resistance to corrosion by molten nonferrous metals and is therefore reduced in the likelihood of dissolving out into the melt.
The sintered material is produced by uniformly mixing together a metal powder for forming the matrix of the desired sintered material and a powder for forming particles of hard compound to be dispersed, molding the powder mixture into a block under pressure, atomizing the block while melting the block and sintering the resulting powder.

REFERENCES:
patent: 4731115 (1988-03-01), Abkowitz
patent: 4906430 (1990-03-01), Abkowitz
patent: 4916029 (1990-04-01), Nagle

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