期刊
JOURNAL OF FRICTION AND WEAR
卷 35, 期 5, 页码 359-364出版社
PLEIADES PUBLISHING INC
DOI: 10.3103/S1068366614050067
关键词
vacuum arc deposition method; high entropic alloys; refractory metal nitrides; tribotechnical characteristics
资金
- Ministry of Education and Science of the Russian Federation
The effect of the pressure of the nitrogen atmosphere during the formation of vacuum arc nitride coatings based on high entropy alloys of the Ti-Zr-Hf-V-Nb-Ta system on their structure, hardness, and tribotechnical characteristics is considered. It is shown that strong nitride-forming components lead to the dependence of the structural state and properties on the pressure of the nitrogen atmosphere during coating deposition. Deposition at a nitrogen pressure of 0.4 Pa results in the formation of a texture with the [111] axis when the applied bias potential is -70 V and when the bias potential is equal to -150 V the textural structure is biaxial ([111] and [110]) textures and high value of hardness of 51 GPa Along with that the highest value of wear resistance (under oxidizing-mechanical wear) is inherent to coatings formed under the pressure of nitrogen of 0.09 Pa. The strongest microdeformation of coating crystallites corresponds to this pressure.
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