Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1993-09-30
1995-03-07
Walsh, Donald P.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75239, 75240, 75242, 75241, 75244, C22C 2904, C22C 2908, C22C 2910
Patent
active
053954211
ABSTRACT:
There now exists a sintered titanium-based carbonitride alloy containing hard constituents with core-rim structure based on, besides Ti, W, one or more of the metals Zr, Hf, V, Mo, Nb, Ta or Cr in 5-30 weight % binder phase based on Co and/or Ni with simultaneously increased wear resistance and toughness. The alloy is characterized in that at least 70%, preferably at least 80%, of said hard constituents have four different types of cores with the following contents of Ti and W in weight % of the total metal content: 1-5 W and 90-95 Ti (1A), 15-25 W and 65-85 Ti (1B), 50-75 W and 20-40 Ti (1C), as well as 20-30 W and 30-60 Ti (2A), whereby the amount of each type is at least 5%.
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Hultman Lars
Oskarsson Rolf
Weinl Gerold
Mai Ngoclan T.
Sandvik AB
Walsh Donald P.
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