Publikacje

Abstract:

The main purpose of the work was to determine the powder influence of the powder preparation on the microstructure and
properties of iron-based sinters used as a metallic-diamond matrix. The sinters obtained from a mixture of comercial powders
were used for research. A mixture of powders was selected for the tests, in which the mass fractions of individual powders were
as follows: 60% Fe, 23.8% Cu, 4.2% Sn and 12% Ni. The powders were pre-mixed in a Turbula mixer and next a part of material
was subjected to milling in a ball mill. Sintering was performed using hot-pressing technique in a graphite mould. The investigated
properties of the sinters were concerned density, porosity, hardness, oxygen content, static tensile test and analysis of microstructure.
Spot chemical analysis revealed the presence of Fe solution, Cu solution and the presence of iron oxides oxides. Nickel atoms were
present throughout the sinter volume. The obtained test results showed that the presented sinter has good functional properties
(hardness and thermal expansion) and can be used as a diamond-metal composite matrix in diamond tools.The microstructure and
mechanical properties of sinters were investigated.

POWRÓT

Strona główna > Publikacje

Properties of FeCuSnNi Sinters as Matrices of Metal-Diamond Composites