Evolution of nanoscopic iron clusters in irradiated zirconium alloys with different iron contents
Evolution of nanoscopic iron clusters in irradiated zirconium alloys with different iron contents
复制标题
不同铁含量辐照锆合金中纳米铁簇的演化
DOI：
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复制
发表时间：
2018
影响因子：
1.2
通讯作者：
T. Sonoda
中科院分区：
文献类型：
--
作者：
T. Sawabe;T. Sonoda
ABSTRACT We investigate the distribution of alloying elements in irradiated Zr alloys with different Fe contents using atom probe tomography. Our results showed dense nanoscale regions (clusters) of Fe formed in the matrix. The average diameter of the Fe clusters in alloy with a high Fe content increased under a higher neutron fluence. Conversely, the number density of Fe clusters remained similar in all the Zr alloy specimens. Energy-dispersive X-ray spectrometry showed that the maximum cluster size depended on the Fe content in the secondary phase particles. Fe clusters gathered along the basal plane of the Zr alloys at high fluence, indicating that irradiation defects influence Fe clustering. The solute concentration of Fe was estimated to be approximately 0.1 at%, which is the Fe concentration in the matrix exclusive of Fe clusters.
