Pick-style tool with a cermet insert having a Co-Ni-Fe-binder
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United States of America Patent
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Jan 9, 2001
Grant Date -
N/A
app pub date -
Aug 27, 1997
filing date -
Aug 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pick-style tool that includes an elongate tool body with an axially forward end and an axially rearward end, and a hard insert affixed to the tool body at the axially forward end is disclosed. The hard insert comprises a WC-cermet comprising tungsten carbide and about 5 wt. % to 27 wt. % Co--Ni--Fe-binder. The Co--Ni--Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
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