Abstract
In comparisons of the abrasive powers of powders it is necessary to consider their production technology. Only those results are comparable which have been obtained in grinding tests on the same material. In the choice of a powder as an abrasive it is necessary to know its “dynamic” abrasive power. The character of variation of this property enables optimum abrasive machining conditions to be determined. In the grinding of steels at pressure of up to 75 kN/m2 titanium carbide and carbonitride (5 wt. % N) powders surpass electrocorundum in abrasive power during the first 300–500 sec of operation and give a better surface finish. They can therefore be successfully used as grinding powders and micropowders for the preparation of pastes intended for the abrasive machining of steels.
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