Structure and mechanical properties of ferritic/martensitic steel EP-823 after neutron irradiation to high doses in BOR-60

被引：35

作者：

Porollo, SI

Dvoriashin, AM

Konobeev, YV

Garner, FA

机构：

[1] Pacific NW Natl Lab, Struct Mat Res, Richland, WA 99352 USA

[2] Obninsk Phys & Power Engn Inst, State Sci Ctr Russian Federat, Obninsk 249020, Russia

来源：

JOURNAL OF NUCLEAR MATERIALS | 2004年 / 329卷

关键词：

D O I：

10.1016/j.jnucmat.2004.04.310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical properties and microstructure of ferritic/martensitic (F/M) steel EP-823 were investigated following irradiation in BOR-60 to 63 dpa at 365-680 degreesC. Up to similar to460 degreesC irradiated EP-823 was found to fracture in a brittle mode at low strength levels, but no significant change in mechanical properties occurred at temperatures >460 degreesC. When compared to EP-450 often used in Russia it is observed that EP-823 is rather more brittle, with the primary microstructural difference: being the formation of M2X in EP-823 instead of alpha' precipitates in EP-450. On the other hand, EP-823 appears to be somewhat more resistant to void swelling. Both of these attributes are thought to arise primarily from the higher silicon content of EP-823. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：314 / 318

页数：5