Improvement of corrosion fatigue limit of steam turbine blades

被引：1

作者：

Thauvin, G

Vittemant, B

机构：

来源：

REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES | 1996年 / 93卷 / 05期

关键词：

D O I：

10.1051/metal/199693050673

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The experimental conditions used to determine the fatigue- corrosion behaviour of alloyed steels are defined from the experience acquired at GERM. Solutions for improving the endurance limit in the fatigue-corrosion of steam turbine blades made on 12 % Cr steel are estimated : protective coating (Ni electrolytic deposit, sacrificial coating), shot peening, the use of 25 % Cr steel. Shot peening of the 12 % Cr steel makes it possible to increase the endurance limit in low aggressive environments (water and water + NaCl). The coatings studied do not improve the fatigue-corrosion behaviour. 25 % Cr steel may be an interesting solution for corrosive environments.

引用

页码：673 / &

页数：14

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