Surface-coated cemented carbide and a process for the production

Details Surface-coated cemented carbide and a process for the production Surface-coated cemented carbide and a process for the production

1989-04-10

1990-03-27

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428552, 428610, 4289088, 419 13, 419 14, 419 17, 419 18, 419 19, 419 25, 419 45, 419 57, 419 58, 419 59, 419 60, B22F 300

Patent

active

049119893

ABSTRACT:
A coated cemented carbide alloy having jointly a high toughness and high wear resistance is produced by specifying the cooling rate during sintering in efficient manner, which alloy comprises a cemented carbide substrate consisting of a hard phase of at least one member selected from the group consisting of carbides, nitrides and carbonitrides of Group IVa, Va and VIa metals of Periodic Table and a binder phase consisting of at least one member selected from the iron group metals, and a monolayer or multilayer, provided thereon, consisting of at least one member selected from the group consisting of carbides, nitrides, oxides and borides of Group IVa, Va and VIa metals of Periodic Table, solid solutions thereof and aluminum oxide, in which the hardness of the cemented carbide substrate in the range of 2 to 5 .mu.m from the interface between the coating layer and substrate is 800 to 1300 kg/mm.sup.2 by Vickers hardness at a load of 500 g, is monotonously increased toward the interior of the substrate and becomes constant in the range of about 50 to 100 .mu.m from the interface.

REFERENCES:
patent: Re32111 (1986-04-01), Lambert et al.
patent: 3999953 (1976-12-01), Kolaska et al.
patent: 3999954 (1976-12-01), Kolaska et al.
patent: 4610931 (1986-09-01), Nemith et al.
patent: 4830930 (1989-05-01), Taniguchi et al.

Affiliated with

Also associated with

Rating

Surface-coated cemented carbide and a process for the production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface-coated cemented carbide and a process for the production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface-coated cemented carbide and a process for the production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1650260