SINTERED ALLOY MEMBER HAVING EXCELLENT WEAR RESISTANCE

Japanese Patent JPS62177159

A

PURPOSE: To obtain a sintered alloy member having excellent wear resistance, hardness and toughness by uniformly dispersing fine carbide such as Cr3C2 having high hardness into a sintered alloy matrix made of a specific compsn. consisting of C, Cr, P, Mo, B and Fe.

CONSTITUTION: The carbide such as Cr3C2, NbC, TaC, TiC, WC, VC, ZrC or HfC which has ≤10μ average grain size, has about ≥1,300 Hv hardness and does not decompose at a sintering temp. of about 1,000W1,130°C is dispersed into the sintered alloy matrix which contains 1.0W4.0wt% C, 4.0W7.0% Cr and least one kind of 0.5W2.0% P, 2.0W6.0% Mo and 0.5W3.0% B and consists of the balance Fe and unavoidable components. The sintered alloy member having the sorbite structure which is excellent in the wear resistance, hardness and toughness is thus obtd. The above-mentioned member can be made into a sliding member having an excellent sliding characteristic by forming fine oil holding recesses on the surface with good dispersibility by buffing, etc.

JP5274781	Manufacturing method of RTB alloy and RTB alloy, fine powder for RTB rare earth permanent magnet, RTB rare earth permanent magnet
WO/1998/050593	METHOD OF FORMING A COMPONENT BY SINTERING AN IRON-BASED POWDER MIXTURE
WO/2012/105399	METHOD FOR PRODUCING R-T-B SYSTEM SINTERED MAGNET

OSAKI SHIGEZO
JINNO SUMIO
MORISHITA TSUYOSHI

JP1995286A

August 04, 1987

January 30, 1986

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MAZDA MOTOR

C22C33/02; B22F5/00; C22C38/00; C22C38/56; (IPC1-7): C22C33/02; C22C38/00; C22C38/56

JPS5985847A	1984-05-17
JPS6033181A	1985-02-20

Hiroshi Maeda (1 person outside)

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