Structure, radiation resistance and thermal creep of ODS ferritic steels

被引:17
作者
Goshchitskii, BN
Sagaradze, VV
Shalaev, VI
Arbuzov, VL
Tian, Y
Qun, W
Sun, JG
机构
[1] RAS, UB, Inst Met Phys, Ekaterinburg 620219, Russia
[2] Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China
[3] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
关键词
Annealing - Creep - Electron irradiation - Hardening - Microstructure - Neutron irradiation - Tensile properties;
D O I
10.1016/S0022-3115(02)01047-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The microstructure, tensile properties and high-temperature creep of oxide dispersion strengthened (ODS) ferritic steels were investigated. It was shown that a high degree of hardening of ODS steels is determined by a large density of dislocations and dispersed yttrium oxides 2-3 nm in diameter. ODS steels have significant advantages over typical ferritic-martensitic steels with respect to their creep resistance and strength under high stress and temperature. The kinetics of accumulation and annealing of radiation defects under electron and neutron irradiation at 77 and 340 K, and the effect of neutron irradiation at 77 and 683 K on tensile properties of ODS steels were studied. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:783 / 787
页数:5
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