Design and Investigation of Hard Metal Composites Modified by Nanoparticles


Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Conference for Young Scientists on High Technology - Research and Applications; Tomsk Polytechn Univ, Tomsk, RUSSIA; Tomsk Polytechn Univ, Tomsk, RUSSIA

Год издания: 2014

Идентификатор DOI: 10.4028/

Ключевые слова: nanoparticles, structural parameters, average size of carbide grain, binder, strength, hard metal composites, tool life, Binders, Carbide cutting tools, Carbides, Engineering research, Fracture toughness, Metals, Stainless steel, Wear resistance, Average size, Hard metals, Structural parameter, Metal nanoparticles

Аннотация: The influence of nanoparticles additives on the hard metals properties has been investigated. Nanoparticles introduced into a binder of average size decrease the metal interlayer and therefore increase the strength of binder and composite as a whole. The reduction of the carbide grain average size was found as well (owing to nanopaПоказать полностьюrticles blocking influence on recrystallization). Besides, the internal thermotension and adhesion wear decrease at high speed cutting (especially for stainless steel) in comparision with base hard metals. The test results display that the modification through ultrafme particles enables to improve the main properties: wear resistance - 1.6 - 2 - fold; fracture toughness - 1.8 - 2 - fold; transverse rupture toughness - at 25 - 50%; tool life - 1.3 - 4 - fold.

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Журнал: High Technology: Research and Applications

Выпуск журнала: Vol. 1040

Номера страниц: 13-18

ISSN журнала: 10226680

Место издания: STAFA-ZURICH