Investigation of Multilayer Superhard Ti-Hf-Si-N/NbN/Al2O3 Coatings for High Performance Protection

A. D. Pogrebnjak, A. S. Kaverina, V. M. Beresnev, Y. Takeda, K. Oyoshi, H. Murakami, A. P. Shypylenko, M. G. Kovaleva, M. S. Prozorova, O. V. Kolisnichenko, B. Zholybekov, D. A. Kolesnikov

研究成果: Chapter

抄録

This paper presents a new type of multi-layer (multicomponent) nano- and microstructured coatings Ti-Hf-Si-N/NbN/Al2O3 with thickness up to 200 m. It demonstrates high physicalmechanical and tribological properties. It was found that the investigated coatings, along with high hardness from 47 to 56 GPa and modulus of elasticity from 435 to 570 GPa, the plasticity index 0.08-0.11, have a fairly low coefficient of friction, which varies from 0.02 to 0.001 for a given mode of deposition. It is also shown that these multilayered coatings have high thermal stability (above 1000°C). The annealing temperature up to 1070°C in a vacuum about 10-2 Pa showed that the coating in the upper layers consisting of Ti-Hf-Si-N/NbN the size of nanograins increases from 25 to 56 nm (for the Ti-Hf-Si-N) and from 14-15 to 35-37 nm for NbN. The increase of steel microhardness at the "coating-substrate" interface, is due to the presence of the hardening near the border with coating formed as a result of impact during abrasive blasting and deposition of coating.

本文言語English
ホスト出版物のタイトルAdvanced Processing and Manufacturing Technologies for Nanostructured and Multifunctional Materials
出版社wiley
ページ163-171
ページ数9
ISBN(電子版)9781119040354
ISBN(印刷版)9781119040262
DOI
出版ステータスPublished - 2015 2 10
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 材料科学(全般)

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