Effects of chromium on the one-dimensional motion of interstitial-type dislocation loops in iron
Effects of chromium on the one-dimensional motion of interstitial-type dislocation loops in iron
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DOI：
10.1016/j.jnucmat.2004.04.263
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发表时间：
2004-08-01
影响因子：
3.1
通讯作者：
Ono, K
中科院分区：
文献类型：
--
作者：
Arakawa, K;Hatanaka, M;Ono, K
用原位透射电镜研究了Fe-9 Cr铁素体合金中位错环的一维运动。在1000 kV高能电子辐照下，在110至680 K的温度范围内，并在295至960 K的热退火下，在110 K的辐照后没有引入额外的位移，检查环运动。与纯Fe中的结果进行了比较，并提取了Cr对线圈运动的影响。在高能电子辐照下，Cr仅使环的运动频率略有降低。相反，在退火下，Fe-9 Cr中的环的运动频率被Cr显著降低。这种双向影响的Cr上的循环的运动频率的起源进行了讨论。(C)2004 Elsevier B. V.保留所有权利。
The one-dimensional motion of interstitial-type dislocation loops in Fe-9Cr ferritic alloy is studied by in situ transmission electron microscopy. Loop motion is examined under 1000 kV high-energy electron irradiation at temperatures ranging from 110 to 680 K and under thermal annealing from 295 to 960 K without introduction of additional displacement subsequent to the irradiation at 110 K. The results are compared with those in pure bee Fe, and the effects of Cr on the motion of loops are extracted. Under high-energy electron irradiation, the motion frequency of loops is only slightly reduced by Cr. In contrast, under annealing, the motion frequency of loops in Fe-9Cr is significantly reduced by Cr. The origins of such two-way effects of Cr on the motion frequency of loops are discussed. (C) 2004 Elsevier B.V. All rights reserved.