FIELD: metallurgy.
SUBSTANCE: composite material based on polycrystalline diamond includes bound matrix of diamond particles bound to each other with formation of set of gaps, and binding phase distributed along those gaps with formation of pockets with binding substance. Phase of tungsten carbide particles is present in binding phase in quantity of more than 0.05 vol. % and not more than 1.5 vol. %. Phase of tungsten carbide particles is uniformly distributed in composite material so that relative root mean square deviation of the grain size of tungsten carbide, which is expressed through diameter of equivalent circle, is less than 1.
EFFECT: material has high wear resistance and impact strength and reduced level of carbide defects.
18 cl, 2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITE INSERTS WITH POLYCRYSTALLINE DIAMONDS | 2010 |
|
RU2503522C2 |
| FINE-GRAINED POLYCRYSTALLINE ABRASIVE MATERIAL | 2006 |
|
RU2433908C2 |
| INSERT FOR CRUSHING TOOL, METHOD OF ITS PRODUCTION AND TOOL WITH SAID INSERT | 2009 |
|
RU2532932C2 |
| ABRASIVE COMPACTS | 2007 |
|
RU2453623C2 |
| METHOD OF PREPARING MODIFIED ABRASIVE COMPACT | 2006 |
|
RU2418673C2 |
| ABRASIVE TOOL | 2007 |
|
RU2447985C2 |
| ULTRAHARD DIAMOND COMPOSITES | 2008 |
|
RU2463372C2 |
| CUTTING ELEMENT REINFORCED WITH DIAMONDS, DRILLING TOOL EQUIPPED WITH THEM AND METHOD OF THEIR MANUFACTURING | 2010 |
|
RU2530105C2 |
| HARD-FACING MATERIALS INCLUDING PCA-PARTICLES, WELDING BARS AND DRILL TOOLS WITH SUCH MATERIALS, METHODS OF THEIR PRODUCTION AND APPLICATION | 2010 |
|
RU2537462C2 |
| POLYCRYSTALLINE DIAMOND ABRASIVE ELEMENT | 2004 |
|
RU2355865C2 |
