INVESTIGATION OF THE STRUCTURE AND PHYSICOCHEMICAL PROPERTIES OF COMBINED NANOCOMPOSITE COATINGS BASED ON Ti-N-Cr/Ni-Cr-B-Si-Fe

被引:11
|
作者
Pogrebnyak, A. D. [1 ,2 ]
Danilenok, M. M. [3 ]
Drobyshevskaya, A. A. [1 ,2 ]
Beresnev, V. M. [1 ,2 ]
Erdybaeva, N. K. [4 ]
Kirik, G. V. [2 ,8 ]
Dub, S. N. [5 ]
Rusakov, V. S. [6 ]
Uglov, V. V. [3 ]
Shipilenko, A. P. [1 ,2 ]
Tuleushev, Yu. Zh. [7 ]
机构
[1] Natl Acad Sci Ukraine, Inst Metallophys, Sumy, Ukraine
[2] Sumy Inst Surface Modificat, Sumy, Ukraine
[3] Belarusian State Univ, Minsk 220050, BELARUS
[4] E Kazachstan State Tech Univ, Ust Kamenogorsk, Kazakhstan
[5] Natl Acad Sci Ukraine, Inst Superhard Mat, Kiev, Ukraine
[6] Moscow MV Lomonosov State Univ, Moscow, Russia
[7] Natl Nucl Ctr Republ Kazakhstan, Inst Nucl Phys, Alma Ata, Kazakhstan
[8] Concern Ukrrosmetall, Sumy, Ukraine
关键词
nanocomposite; combined coating; nanohardness; corrosion resistance; elastic modulus;
D O I
10.1007/s11182-010-9378-1
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Tentative data are presented on a new type of nanocomposite protective coatings produced by a combination of two technologies: plasma-detonation coating deposition with plasma jets and thin coating vacuum-arc deposition. For coatings of thickness 80-90 mu m, the structure, physicomechanical properties,and morphology have been investigated and their hardness,elastic Young modulus,and corrosion resistance in various media have been determined. The grain size of a Ti-N-Cr-based nanocomposite coating varied from 2.8 to 4 nm. The following phases and compounds formed as a result of the plasma interaction with the surface of a thick coating have been detected: (Ti,Cr)N (200), (Ti,Cr)N (220), gamma-Ni3Fe, hexagonal Cr2Ti, Fe3Ni, (Fe, Ni)N, and Ti-Ni compounds such as Ti2Ni, Ni3Ti, Ni4Ti3, etc. It has been found that the nanocomposite coating microhardness increased to (32 +/- 1.1) GPa. The elastic modulus estimated from the loading-unloading curves was (320 +/- 20) GPa. The protective coatings demonstrated an increased corrosion resistance in acidic and alkaline media in comparison with that of the stainless-steel substrate.
引用
收藏
页码:1317 / 1324
页数:8
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