Effect of Thermal Barrier Coatings on the High-Temperature Strength of Nickel Alloys

被引：0

作者：

Abraimov, N. V. ^{[1
]}

Orekhova, V. V. ^{[1
]}

机构：

[1] Branch AO ODK NIID, Moscow 105118, Russia

来源：

RUSSIAN METALLURGY | 2021年 / 2021卷 / 06期

关键词：

high-temperature strength; coatings; long-term strength; creep; fatigue life; high-temperature alloys;

D O I：

10.1134/S0036029521060021

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The influence of thermal barrier coatings based on nickel aluminides on the long-term strength and creep characteristics of nickel superalloys is considered. The increase in the fatigue life of coated alloy specimens at high temperatures under high-temperature oxidation conditions is shown to be primarily due to the protection of the surface layer of the metal from chemical destruction during gas corrosion. The decrease in the fatigue life of the uncoated specimens is due to the oxidation of the alloy elements, which becomes more intense with the test time. The complex coatings Ni-Cr-Al-Y, Cr-Al-Ti-Hf, and Ni-Al-Hf-Y under study are found to exert a positive effect on the creep characteristics of high-temperature alloys ZhS6U, VZhL12U, ZhS16, and ZhS30M.

引用

页码：735 / 745

页数：11

共 12 条

[1]

[Абраимов Н.В. Abraimov N.V.], 2019, [Электрометаллургия, Elektrometallurgiya], P24

[2]

Abraimov N.V., 2018, Temperature-Resistant Coatings and Welding in Gas Turbine Engines

[3]

Alekhin V.P., 1983, Physics of Strength and Plasticity of Surface Layers of Materials

[4]

[Будиновский С.А. Budinovskii S.A.], 2013, [Металловедение и термическая обработка металлов, Metallovedenie i termicheskaya obrabotka metallov], P16

[5]

[Будиновский С.А. Budinovskiy S.A.], 2019, [Электрометаллургия, Elektrometallurgiya], P3

[6]

Kablov E. N., 2006, CAST GAS TURBINE ENG

[7]

Logunov A. V., 2017, NICKEL SUPERALLOYS G

[8]

[Овчинников В.В. Ovchinnikov V. V.1], 2018, [Электрометаллургия, Elektrometallurgiya], P22

[9]

Shtremel M.A., 2015, FRACTURE STRUCTURES

[10]

[Сидоров В.В. Sidorov V.V.], 2019, [Электрометаллургия, Elektrometallurgiya], P28

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