2-LAYER AND 3-LAYER COATINGS PRODUCED BY DEPOSITION IN VACUUM FOR GAS-TURBINE BLADE PROTECTION

被引：21

作者：

MOVCHAN, BA ^{[1
]}

MALASHENKO, IS ^{[1
]}

YAKOVCHUK, KY ^{[1
]}

RYBNIKOV, AI ^{[1
]}

TCHIZHIK, AA ^{[1
]}

机构：

[1] II POLZUNOV CENT BOILER & TURBINE INST,ST PETERSBURG 194021,RUSSIA

来源：

SURFACE & COATINGS TECHNOLOGY | 1994年 / 67卷 / 1-2期

关键词：

D O I：

10.1016/S0257-8972(05)80027-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper deals with the microstructure and properties of oxidation-resistant metal/ceramic coatings produced by the electron beam evaporation of M-Cr-Al-Y alloys and zirconia partially stabilized by yttria. The effect of thermophysical conditions of deposition on the properties of the condensed zirconia and protective coatings is shown. The results of furnace tests in air and gas turbine fuel ash showed that the double-layer metal/ceramic coatings increase the oxidation and corrosion resistance of nickel alloys at 750-1000 degrees C. Burner tests of specimens and blade models with Co-Cr-Al-Y/ZrO2, coatings in a gas stream showed that the metallic coatings possess higher thermal fatigue resistance due to the deposition of the ceramic layer of 50-120 mu m thickness. The relationship between the thermal cyclic life and multicycle fatigue resistance of alloys with vacuum-deposited metal/ceramic coatings is expressed by a curve with a maximum corresponding to ZrO2-Y2O3 90-120 mu m thick. Potential improvement of M-Cr-Al-Y/ZrO2, coatings is increased in service when a ductile interlayer is inserted between the oxidation-resistant layer and base metal. Data are given about the dependence of the mechanical properties of heat-resistant nickel alloys on ZrO2-Y2O3 coatings of 60-150 mu m thickness.

引用

页码：55 / 63

页数：9

共 18 条

[1]

EAVES AV, 1987, WORLD AEROSPACE PROF, P78

[2]

GETSOV LB, 1982, ZAVODSK LAB, V48, P74

[3]

MALASHENKO IS, 1987, PROBLEMY SPETZELECTR, V3, P41

[4]

Marriott J. B., 1990, Materials & Design, V11, P122, DOI 10.1016/0261-3069(90)90002-2

[5]

MARTIROSYAN AM, 1987, PROBLEMS SPECIAL MET, V2, P47

[6] RESISTANCE OF THERMAL BARRIER CERAMIC COATINGS TO HOT SALT CORROSION [J].

MCKEE, DW ;

SIEMERS, PA .

THIN SOLID FILMS, 1980, 73 (02) :439-445

[7]

Meetham, 1982, T IMF, V60, P89

[8]

MOVCHAN BE, 1983, HEAT RESISTING COATI

[9] PRODUCTION OF PROTECTIVE COATINGS BY ELECTRON-BEAM EVAPORATION [J].

PATON, BE ;

MOVCHAN, BA .

THIN SOLID FILMS, 1978, 54 (01) :1-8

[10]

PATON BE, 1990, TRUDY CKTI, V260, P17

← 1 2 →