| 摘要 |
A cutting tool material with improved toughness behaviour. The improved toughness behaviour is obtained by using carefully selected reinforcing materials. The objectives of this invention are realised by simultaneously utilising additives resulting in different toughening mechanisms. By the simultaneous utilisation of different toughening additives, synergistic effects occur giving the tool excellent material properties. The tool material of the present invention comprises reinforcing whisker additives of one dimensional single crystals with preferably different diameter and aspect ratios, two dimensional single crystals with different thickness and aspect ratios, and, in combination therewith, phase transformation additives such as ZrO2. |
