Variation in the structure and properties of sintered alloys under the effect of nanodimensional carbon additives


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The influence of nanodimensional carbon additives on the structural-phase state and properties of sintered alloys on copper, iron, and tungsten–cobalt bases is considered. It is shown that the undissolved part of the nanodimensional additive can serve as additional nucleation centers of crystals during liquid-phase sintering and crystallization of powder compositions, which promotes structure refining. It is established that the nanodimensional diamond–graphite additive in alloys able to form solid solutions with carbon or strengthening carbide phases leads to an increase in hardness of sintered composites and an improvement in their tribotechnical properties.

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P. Vityaz’

Presidium of National Academy of Sciences of Belarus

编辑信件的主要联系方式.
Email: vitiaz@presidium.bas-net.by
白俄罗斯, pr. Nezavisimosti 66, Minsk, Belarus, 220072

V. Zhornik

Joint Institute of Mechanical Engineering

Email: vitiaz@presidium.bas-net.by
白俄罗斯, ul. Akademicheskaya 12, Minsk, 220072

S. Kovaleva

Joint Institute of Mechanical Engineering

Email: vitiaz@presidium.bas-net.by
白俄罗斯, ul. Akademicheskaya 12, Minsk, 220072

V. Kukareko

Joint Institute of Mechanical Engineering

Email: vitiaz@presidium.bas-net.by
白俄罗斯, ul. Akademicheskaya 12, Minsk, 220072

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