Improving hard-alloy strength and tool life by thermomechanical treatment

Investigation of nanostructured hard metal composites obtained from powder mixtures (WC-Co)-Al2O3

“…Аl2O3, with the specific surface being 12 m 2 /g. Previous experimental researches and the data of other authors [3,4] reliably it is established that there is a direct functional relationship between structural parameters (the average size of carbide grain, the average thickness of the interlayer binder, contactness of carbide grains, volume fraction of solid phase and binder, ets.) and strength characteristics of composites.…”

“…where: β0structure coefficient depend of the of carbide morphology; h -the binder layer between nanoparticles -df, νhvolume of binder. Solving this equations system of (1, 2) and using the results of modeling developed previously [3,4,6] for WC-Co-nanoAl2O3 (ZrO2) and data presented in [7] can be determine the volume of additives in the structure and optimal ratios sizes dm / df and volumes νm / νf. Obtained As a result allow the possibility to obtain compacts highest density of compound.…”

Influence of Thermomechanical Treatment Modes on Wear Resistance of Mining Equipment Material

“…At the same time, thermomechanical treatment is applied rather rarely in mining mechanical engineering. Influence of thermomechanical treatment on wear resistance of materials is studied insufficiently [13][14][15][16][17][18] and there is almost no data about its effects on abrasion wear resistance. Therefore, researches of the influence of thermomechanical treatment on abrasion wear intensity are important and topical task.…”

Physicochemical properties of lead brass charge obtained by electroerosion in isopropyl alcohol under optimal dispersion regimes

“…owder metallurgy is a branch of metallurgy, with the help of which it is possible to manufacture products of various shapes, purposes, as well as to create new materials with properties that cannot be obtained by traditional methods of processing [1][2][3][4].…”