Effect of long-term operational aging on the mechanical properties and microstructure of austenitic 18Cr-9Ni steel and the weld metal

被引：1

作者：

Kursevich I.P. ^{[1
]}

Margolin B.Z. ^{[1
]}

Yu. Prokoshev O. ^{[1
]}

Smirnov V.I. ^{[1
]}

Fedorova V.A. ^{[1
]}

Nesterova E.V. ^{[1
]}

Petrov S.N. ^{[1
]}

机构：

[1] Central Research Institute of Structural Materials Prometey, St. Petersburg

来源：

Inorganic Materials: Applied Research | 2013年 / 4卷 / 06期

关键词：

Austenitic steel; Heat-exchange equipment; Long-term aging; Prediction of degradation of proper- ties;

D O I：

10.1134/S2075113313060087

中图分类号：

学科分类号：

摘要：

The properties of materials of the heat-exchange equipment components of the fast breeder reac- tor BN-600 after 130000-170000 h of operation at 500-550°C are studied. The effect of long-term aging on the strength, ductility, impact strength, and fracture toughness of 18Cr-9Ni steel (type 304 stainless steel) and its welds is examined. The mechanisms that give rise to changes in the mechanical properties are analyzed on the basis of microstructural and fractographic studies. The predicted degradation of material properties is estimated as a function of operating temperature and time. Original Russian Text © M.L. Fedoseev, A.V. Ptashnik, S.N. Petrov, B.K. Barakhtin, Yu.A. Utkin, 2013.

引用

页码：562 / 574

页数：12

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