Email this article Variation in the structure and properties of sintered alloys under the effect of nanodimensional carbon additives
- Authors: Vityaz’ P.A.1, Zhornik V.I.2, Kovaleva S.A.2, Kukareko V.A.2
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Affiliations:
- Presidium of National Academy of Sciences of Belarus
- Joint Institute of Mechanical Engineering
- Issue: Vol 57, No 2 (2016)
- Pages: 135-140
- Section: Theory and Processes of Forming and Sintering of Powder Materials
- URL: https://journals.rcsi.science/1067-8212/article/view/225867
- DOI: https://doi.org/10.3103/S1067821216020115
- ID: 225867
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Abstract
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.
About the authors
P. A. Vityaz’
Presidium of National Academy of Sciences of Belarus
Author for correspondence.
Email: vitiaz@presidium.bas-net.by
Belarus, pr. Nezavisimosti 66, Minsk, Belarus, 220072
V. I. Zhornik
Joint Institute of Mechanical Engineering
Email: vitiaz@presidium.bas-net.by
Belarus, ul. Akademicheskaya 12, Minsk, 220072
S. A. Kovaleva
Joint Institute of Mechanical Engineering
Email: vitiaz@presidium.bas-net.by
Belarus, ul. Akademicheskaya 12, Minsk, 220072
V. A. Kukareko
Joint Institute of Mechanical Engineering
Email: vitiaz@presidium.bas-net.by
Belarus, ul. Akademicheskaya 12, Minsk, 220072
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