Cemented carbide with binder phase enriched surface zone

Details Cemented carbide with binder phase enriched surface zone Cemented carbide with binder phase enriched surface zone

1994-06-10

1996-08-27

Turner, Archene

Stock material or miscellaneous articles

Composite

Of inorganic material

51295, 51307, 428332, 428472, 428697, 428469, B32B 1504

Patent

active

055499805

ABSTRACT:
A cemented carbide insert with improved toughness and resistance against plastic deformation containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on Co and/or Ni with a binder phase enriched surface zone is disclosed. The binder phase content in the insert is 3.5-12 weight-%. In a zone below the binder phase enriched surface zone, the binder phase content is 0.85-1 of the binder phase content in the inner portion of the insert and the content of cubic phases is essentially constant and equal to the content in the inner portion of the insert.

REFERENCES:
patent: 4277283 (1981-07-01), Tobioka et al.
patent: 4548768 (1985-10-01), Ramser et al.
patent: 4610931 (1986-09-01), Nemeth et al.
patent: 4649084 (1987-03-01), Hale et al.
patent: 4705124 (1987-11-01), Abrahamson et al.
patent: 4743515 (1988-05-01), Fischer et al.
patent: 4812370 (1989-03-01), Okada et al.
patent: 4830930 (1989-05-01), Tanaguchi et al.

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