HARDNESS OF 12CR-8MO FERRITIC STEELS IRRADIATED BY NI IONS

被引：15

作者：

OHTA, J ^{[1
]}

OHMURA, T ^{[1
]}

KAKO, K ^{[1
]}

TOKIWAI, M ^{[1
]}

SUZUKI, T ^{[1
]}

机构：

[1] ELECT POWER IND, CENT RES INST, KOMAE, TOKYO 201, JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1995年 / 225卷

关键词：

D O I：

10.1016/0022-3115(95)00016-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

12Cr-8Mo and 12Cr-8Mo-0.1Y(2)O(3) ferritic steels were irradiated with 4-MeV Ni3+ ions up to 300 dpa at 525 degrees C. Microstructural evolution was examined by transmission electron microscopy (TEM) and mechanical properties were evaluated with a depth-sensing ultra-low load indentation hardness tester at room temperature with a maximum load of 1 gf. Effects of aging at 650 degrees C for 115 h and heat treatment at 525 degrees C for 50 h were also investigated. TEM observations reveal that these steels exhibit no void swelling in the present irradiation condition. Aging and heat treatment induces precipitation of Laves phase and ion-irradiation enhances precipitation. The induction and enhancement of precipitation strengthened the specimens.

引用

页码：187 / 191

页数：5

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