CHARPY IMPACT PROPERTIES OF MARTENSITIC 10.6-PERCENT CR STEEL (MANET-I) BEFORE AND AFTER NEUTRON EXPOSURE

被引：21

作者：

RIETH, M ^{[1
]}

DAFFERNER, B ^{[1
]}

ROHRIG, HD ^{[1
]}

WASSILEW, C ^{[1
]}

机构：

[1] EURATOM,ASSOC KFK,PROJETLEITUNG KERNFUS,D-76021 KARLSRUHE,GERMANY

来源：

FUSION ENGINEERING AND DESIGN | 1995年 / 29卷

关键词：

D O I：

10.1016/0920-3796(95)80043-W

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

An extensive irradiation programme (FRUST/SIENA) was elaborated to study the influence of radiation upon the Charpy impact characteristics of the MANET-I martensitic 10.6% Cr steel. In addition to unirradiated reference specimens, 87 irradiated subsize Charpy specimens (3 x 4 x 27 mm(3)) were examined under eight different heat treatments at irradiation temperatures between 290 and 475 degrees C and exposure doses of 5-15 dpa. A newly developed instrumented Charpy impact bending test and evaluation system was used in the tests. The impact properties characterized by the upper shelf energy (USE) and the transition temperature from brittle to ductile material behaviour (DBTT) were determined before and after irradiation. Clear empirical correlations could be established according to which irradiation at lower temperatures provokes a shift in DBTT and USE independent of the initial material state with dose saturation at 10-15 dpa. An elevated irradiation temperature alleviates the irradiation-induced material deterioration.

引用

页码：365 / 370

页数：6

共 6 条

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