Application of qualitative analysis of electron probe microanalyzer in identification of tin,tungsten and gold in interface of zirconium alloy/tungsten composite layer
HUANG Rongshen1, HU Jinsheng2, WEI Shaohong3, ZHANG Zhiming1
1. Institute of Corrosion Science and Technology, Guangzhou 510530, China; 2. JEOL (BEIJING) Co.,Ltd.,Beijing 100089, China; 3. China Spallation Neutron Source, Dongguan 523906, China
Abstract：The interface properties of Zr alloy/W composite material have an important impact on their final application in the field of nuclear materials. The diffusion behavior of elements at the interface is the basis for researching the phase transformation during service process. In order to determine whether there is diffusion of W at the interface of Zr alloy/W composite layer, the peak position interference between trace Sn and W in Zr alloy should be discriminated. The peak position of Au coincides with Sn, so it is required to further determine Au element. The qualitative analysis spectrum of electron probe microanalysis (EPMA) can provide the important information of peak interference of position interference between different elements. The M lines and L lines of W overlap with L lines of Zr and the K lines of Sn, respectively. In this study, by comparing the fine scanning test results at different positions on the side of Zr alloy, Mα and Mβ lines of element W were detected in PET and PETH spectra, which confirmed that there was W at the interface of composite laminate and no W was found far away from the interface. The Mα line of Au overlapped with Lβ line of Zr, while the Lα peak position of Au (88.402 mm) overlapped with Lβ2 line of Sn. The fine scanning test results at different positions were compared, and it was found that the collected X-ray signals of above lines kept the same changes in different positions. These results indicated that the material had no Au, and it was mislabeled.
黄榕深, 胡晋生, 魏少红, 张志明. 电子探针定性分析图谱在锆合金/钨复合层界面处锡钨金元素判定的应用[J]. 冶金分析, 2023, 43(8): 17-23.
HUANG Rongshen, HU Jinsheng, WEI Shaohong, ZHANG Zhiming. Application of qualitative analysis of electron probe microanalyzer in identification of tin,tungsten and gold in interface of zirconium alloy/tungsten composite layer. , 2023, 43(8): 17-23.
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