Phase decomposition of oxide film of flow accelerated corroded F82H steel under high-temperature iron irradiation
Phase decomposition of oxide film of flow accelerated corroded F82H steel under high-temperature iron irradiation
复制标题
高温铁辐照下流动加速腐蚀F82H钢氧化膜的相分解
DOI：
10.1016/j.jnucmat.2022.153639
复制
发表时间：
2022
影响因子：
3.1
通讯作者：
Hiroaki Abe
中科院分区：
文献类型：
--
作者：
Sho Kano;Huilong Yang;John McGrady;Motoki Nakajima;Masami Ando;Takashi Nozawa;Hiroaki Abe
本研究的目的是阐明辐照下低活化铁素体/马氏体钢中腐蚀层的相稳定性。在573 K下使用2.8 MeV-Fe2+对F82H钢的氧化膜进行离子辐照。对于辐照后实验，进行掠入射X射线衍射（GIXRD）和拉曼分析，以阐明氧化层随辐照剂量变化的特征。氧化膜的主要相被确定为 FeCr2O4，它与高达约 30% 的残余基体相共存。随着辐照剂量的增加，残余基体的分数减少，证实了从FeCr2O4到Fe3O4的相变。根据实验结果提出了辐照下FeCr2O4向Fe3O4相变的假设。具体而言，FeCr2O4相在辐照下不稳定，并且在从腐蚀层中的残余基体中吸收Fe原子后趋于稳定。结果，在照射下氧化层中的Fe浓度增加，推测在照射下发生了FeCr2O4到Fe3O4的相变。然而，为了更好地理解 FeCr2O4 在辐照下的不稳定机制，以及 Fe3O4 相相对于 FeCr2O4 相更好的稳定性，还需要进一步考虑。
The purpose of the present study is to clarify the phase stability of the corroded layer in reduced activation ferritic/martensitic steels under irradiation. The oxide film of F82H steel was subjected to ion irradiation using 2.8 MeV-Fe2+at 573 K. For post-irradiation experiments, grazing incident X-ray diffraction (GIXRD) and Raman analysis were conducted to clarify the features of the oxide layer with the variation of the irradiation dose. The dominant phase of the oxide film was identified as FeCr2O4, which co-existed with up to ∼30% of the residual matrix phase. The fraction of the residual matrix decreased as the irradiation dose increased, the phase transformation from FeCr2O4to Fe3O4was confirmed. The hypothesis for the phase transformation of FeCr2O4to Fe3O4under irradiation was proposed based on the experimental results. Specifically, the FeCr2O4phase is unstable under irradiation, and tends to become stable after absorbing Fe atoms from the residual matrix in the corrosion layer. As a result, the Fe concentration in the oxide layer increased under irradiation, the phase transformation of FeCr2O4to Fe3O4is presumed under irradiation. However, concerns about the mechanism of the instability of FeCr2O4under irradiation, and better stability of Fe3O4phase relative to FeCr2O4phase have to be further considered to achieve a better understanding.
登录
查看更多内容
JAEA 水冷固体增殖机测试毯模块的开发
DOI：
10.1016/j.fusengdes.2009.01.057
发表时间：
2009
期刊：
影响因子：
--
作者：
M. Akiba;M. Enoeda;D. Tsuru;H. Tanigawa;T. Hirose;K. Mohri;Y. Seki;K. Ezato;S. Suzuki;H. Nishi;S. Mori
通讯作者：
S. Mori
氢对还原活化铁素体/马氏体钢 F82H 腐蚀性能的影响
影响因子：
1.7
作者：
Motoki Nakajima;T. Nozawa;H. Tanigawa
通讯作者：
H. Tanigawa
金刚石晶体与围岩接触部位的物相组成研究
影响因子：
0.9
作者：
V. Skvortsova;M. Samoylovich;A. Belyanin
通讯作者：
A. Belyanin
X2YO4 化合物的离子束辐照效果比较
DOI：
--
发表时间：
2004
期刊：
影响因子：
--
作者：
Luming Wang;W. Gong;Shi Xin Wang;R. Ewing
通讯作者：
R. Ewing
相%20稳定性%20的%20减少%20活化%20铁素体%20钢：%208%Cr-2%W-0.2%V-0.04%Ta-Fe
影响因子：
3.1
作者：
M. Tamura;H. Hayakawa;A. Yoshitake;A. Hishinuma;T. Kondo
通讯作者：
T. Kondo