Cemented carbide with refined structure

Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions

Reexamination Certificate

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Reexamination Certificate

active

07976607

ABSTRACT:
The present invention relates to a WC—Co cemented carbide alloy. By adding an extremely small amount of Ti, V, Zr, Ta or Nb or a combination of these, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained.

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