Structure of nano-size oxides in ODS steels and its stability under electron irradiation
Structure of nano-size oxides in ODS steels and its stability under electron irradiation
复制标题
ODS钢中纳米氧化物的结构及其在电子辐照下的稳定性
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
H. Tanigawa
中科院分区：
文献类型：
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作者：
K. Oka;S. Ohnuki;S. Yamashita;N. Akasaka;S. Ohtsuka;H. Tanigawa
为了了解纳米尺寸氧化物颗粒的微观结构细节，通过高压电子显微镜、EDS和AP-EDS对三种类型的ODS铁素体和奥氏体钢进行了研究。该氧化物由Y、Ti和O组成，呈不同成分的壳状结构。壳状结构取决于制造过程中基质的晶体结构。为了评价氧化物颗粒的辐照稳定性，在室温至923 K的温度范围内进行47 dpa的电子辐照。在辐照过程中，氧化物颗粒的尺寸没有明显的变化。与最近报道的结果进行了比较，讨论了辐照行为。
For understanding the microstructual details of nano-size oxide particles, three types of ODS ferritic and austenitic steels were examined by high voltage electron microscopy, EDS and AP-FIM. The oxide included Y, Ti and O and showed a shell-like structure with different composition. The shell-like structure depends on crystal structure of the matrix during fabrication process. To evaluate the irradiation stability of the oxide particles, the electron irradiation was carried out to 47 dpa in the temperature range between room temperature and 923 K. During the irradiation, the oxide particles did not show obvious change in size. The irradiation behavior is discussed comparing with the results recently reported.