Effects of proton irradiation on Chinese domestic RPV steels by variable energy positron annihilation spectroscopy

被引：2
|
作者：
Jiang, J. [1 ]
Wu, Y. C. [1 ]
Wang, S. J. [1 ]
Liu, X. B. [2 ]
Wang, R. S. [2 ]
机构：
[1] Wuhan Univ, Hubei Nucl Solid Phys Key Lab, Sch Phys & Technol, Wuhan 430072, Peoples R China
[2] Suzhou Nucl Power Res Inst, Ctr Plant Life Management, Suzhou 215004, Peoples R China
来源：
16TH INTERNATIONAL CONFERENCE ON POSITRON ANNIHILATION (ICPA-16) | 2013年 / 443卷
基金：
中国国家自然科学基金;
关键词：
ATOM-PROBE; ALLOYS; FE;
D O I：
10.1088/1742-6596/443/1/012037
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The effects of proton irradiation on Chinese domestic reactor pressure vessel (RPV) A508-3 steels have been investigated by variable energy positron annihilation spectroscopy. The samples were irradiated using 110 keV protons at doses ranging from 0.2 to 2.0 X 10(17) cm(-2) at room temperature. Defect profiles were analyzed by measuring the S parameter as a function of incident positron energy from 0.25 to 26keV, corresponding to mean depths of up to similar to 940nm. It is interesting to note that the S-parameter increases rapidly with increasing dose, which implies that matrix damage has a direct relation to dose-dependent effects in microstructural evolution.
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页数：4
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