Neutron/proton irradiation and He effects on the microstructure and mechanical properties of ferritic/martensitic steels T91 and EM10

被引：66
作者：
Dai, Y. [1 ]
Henry, J. [2 ]
Tong, Z. [1 ,3 ]
Averty, X. [4 ]
Malaplate, J. [2 ]
Long, B. [1 ,3 ]
机构：
[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[2] CEA, DEN, SRMA, F-91191 Gif Sur Yvette, France
[3] China Inst Atom Energy, Beijing 102413, Peoples R China
[4] CEA, DEN, SEMI, F-91191 Gif Sur Yvette, France
来源：
JOURNAL OF NUCLEAR MATERIALS | 2011年 / 415卷 / 03期
关键词：
TEMPERED MARTENSITIC STEELS; TENSILE BEHAVIOR; STIP-II; 20; DPA; EMBRITTLEMENT; HELIUM; ALLOYS;
D O I：
10.1016/j.jnucmat.2011.04.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the European EUROTRANS/DEMETRA program, the synergistic effect of radiation damage and helium on microstructure and mechanical properties of two 9Cr 1Mo ferritic/martensitic (FM) steels T91 and EM10 was evaluated after irradiation in SINQ targets. In addition, the helium induced effect was investigated using helium implanted specimens. The results demonstrate that helium can induce significant embrittlement effect in FM steels as shown by the tremendous increase in ductile-to-brittle transition temperature, the great reduction in ductility and fracture toughness at >similar to 15 dpa and 1000 appm He and the occurrence of intergranular fracture mode. Further, high-density helium bubbles can produce pronounced hardening effect. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：306 / 310
页数：5
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