Powder particles for fine-grained hard material alloys

Details Powder particles for fine-grained hard material alloys Powder particles for fine-grained hard material alloys

1988-02-25

1990-01-16

Rutldege, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

B22F 900

Patent

active

048940909

ABSTRACT:
The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles.
The preparation is performed in an economical way because the procedure starts from conventional melt metallurgical raw materials. A pre-alloy consisting of hard principle forming and binder phase forming elements is subjected to a heat treatment such as nitriding and carburizing after being crushed. The final product is particles composed by hard principle phases and binder metal phases formed "in situ" in an effective binding.

REFERENCES:
patent: 3591362 (1971-07-01), Beijamin
patent: 3916497 (1975-11-01), Doi et al.
patent: 4192672 (1980-11-01), Moskowitz et al.
patent: 4619699 (1986-10-01), Luton

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