| 摘要 |
According to the invention there is a sintered carbonitride alloy in which the hard constituents are based on Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and/or W and the binder phase on Co and/or Ni and possibly small amounts of Al being present. At least 80 % by volume of the hard constituents consist of duplex structures built with a core and at least one surrounding rim. The duplex hard constituents consist of several, preferably at least two, different hard constituent types concerning the composition of core and/or rim(s). These individual hard constituent types consist each of 10 - 80, preferably 20 - 70 % by volume of the total content of hard constituents. Besides, non-duplex hard constituents may be present in up to 20 % by volume of the total hard constituent amount. |
