Structure and Properties of NbMoCrTiAl High-Entropy Alloy Coatings Formed by Plasma-Assisted Vacuum Arc Deposition

被引：5
|
作者：
Ivanov, Yurii F. [1 ]
Akhmadeev, Yuriy Kh. [1 ]
Prokopenko, Nikita A. [1 ]
Krysina, Olga V. [1 ]
Koval, Nikolai N. [1 ]
Petrikova, Elizaveta A. [1 ]
Tolkachev, Oleg S. [1 ]
Shugurov, Vladimir V. [1 ]
Uglov, Vladimir V. [1 ,2 ]
Shmakov, Alexander N. [1 ,3 ]
机构：
[1] Inst High Current Elect SB RAS, 2-3 Akademichesky Ave, Tomsk 634055, Russia
[2] Belarusian State Univ, Dept Solid State Phys, 4 Nezavisimosti Ave, Minsk 220030, BELARUS
[3] Budker Inst Nucl Phys SB RAS, 11 Akademika Lavrentieva Ave, Novosibirsk 630090, Russia
来源：
COATINGS | 2023年 / 13卷 / 07期
关键词：
plasma-assisted vacuum arc deposition; high-entropy alloy; metal; ceramic; and cermet coatings; synchrotron radiation; structure; properties; NANOSTRUCTURED NITRIDE FILMS; MECHANICAL-PROPERTIES; SUBSTRATE-TEMPERATURE; WEAR BEHAVIOR; MICROSTRUCTURE; DESIGN; TARGET; STATE; HF; ZR;
D O I：
10.3390/coatings13071191
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper analyzes the structure and properties of metal, cermet, and ceramic NbMoCrTiAl high-entropy alloy (HEA) coatings formed on solid substrates by plasma-assisted vacuum arc deposition (from multicomponent gas-metal plasma through Nb, Mo, Cr, and TiAl cathode evaporation in argon and/or a mixture of argon and nitrogen). The analysis shows that all coatings represent a nanocrystalline (3-5 nm) multilayer film. The metal coating has a bcc lattice (a = 0.3146 nm). The ceramic coating has an fcc lattice (an uncertain lattice parameter due to highly smeared diffraction peaks). The coating hardness increases in the order of metal, cermet, and then ceramic, reaching 43 GPa at Young's modulus equal to 326 GPa. When heated in air, the metal and cermet coatings start to oxidize at 630-640 & DEG;C, and the ceramic coating at 770-780 & DEG;C.
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页数：13
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