Diamond tools in metal bonds dispersion-strengthened with nanosized particles for cutting highly reinforced concrete

Effect of WC Nanoparticles on the Microstructure and Properties of WC-Bronze-Ni-Mn Based Diamond Composites

“…Metal matrix composites reinforced by nanoparticles have promising properties, which is more suitable for a large number of functional and structural applications than other metal matrix strengthening methods, such as solution strengthening, work hardening and precipitation strengthening [14]. Recently, some researchers investigated metal matrix reinforced with nano-particles (nanotubes), finding out that adding nanosized reinforcement improved hardness, bending strength and wear resistance of matrix [21][22][23][24][25][26][27][28]. Ceramic (Al 2 O 3 , ZrO 2 , TiC, TiB 2 , WC, etc.)…”

“…nanoparticles can be used as reinforcing phase. But Al 2 O 3 , ZrO 2 , TiC and TiB 2 nanoparticles have low wettability with bonding phase bronze, which decreases composites properties [7,13,[22][23][24][25][26]. WC nanoparticles have excellent wettability with bronze and have good properties, namely high hardness, high wear resistance, good thermal and chemical stability.…”

Self-assembling WC interfacial layer on diamond grains via gas-phase transport mechanism during sintering of metal matrix composite

“…Another efficient method to enhance the mechanical properties of various binders is to add a controlled amount of nano additives (e.g., WC, ZrO 2 , Al 2 O 3 , and carbon nanotubes), which allows improving performance of diamond tools considerably [23][24][25][26][27][28][29]. A significant increase in performance of tools with tungsten carbide alloyed binder was reported [27,28]. Enhanced wear resistance was caused by the simultaneous increase in hardness and strength of binder, reduced friction coefficient and increased diamond retention.…”

Features of the effect of nano-modification and macro-structurization on Fe–Mo binder properties for diamond tool

“…Как показано ранее в работах [1][2][3][4][5][6][7], наномоди-фицирование карбидом вольфрама в оптималь-ной концентрации металлических связок, вклю-чающих Co, Ni, Cu, Fe, приводит к увеличению их твердости и прочности, а соответственно, способ-ствует росту ресурса и производительности ал-мазного инструмента.…”

“…С этой точки зрения перспективным способом повышения конкурентоспособности инструмен-та является создание низколегированных сплавов на основе железа, где компенсация относительно низкой стойкости связки обеспечивается ее дис-персным упрочнением путем введения малого ко-личества нанодисперсных порошков [1][2][3][4][5][6][7].…”