Correlation and Contingency Analysis of Atom Probe Data: Diffusion-controlled Dissolution of Precipitates
Correlation and Contingency Analysis of Atom Probe Data: Diffusion-controlled Dissolution of Precipitates
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原子探针数据的相关性和偶然性分析：沉淀物的扩散控制溶解
DOI：
10.1515/ijmr-1994-850517
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发表时间：
1994
影响因子：
0.8
通讯作者：
C. Abromeit
中科院分区：
文献类型：
--
作者：
E. Camus;C. Abromeit
提出了一种原子探针数据的统计分析方法，用于评价浓缩合金中局部成分波动的演化。该模型允许计算假定合金微观结构的理论相关系数和偶然性系数，同时考虑到仪器参数，即孔径大小、块大小和探测器效率。将理论系数与从测量浓度曲线获得的系数进行比较，可以得到物理上相关的参数。该方法应用于离子辐照下nionic PE16工业合金中球形析出物的扩散控制溶解
A statistical analysis of atom probe data is developed for evaluating the evolution of local composition fluctuations in concentrated alloys. The model allows the calculation of theoretical correlation and contingency coefficients for a presumed alloy microstructure taking into account the instrumental parameters, i.e. aperture size, block size and detector efficiency. A comparison of theoretical coefficients with those obtained from measured concentration profiles gives access to physically relevant parameters. The analysis is applied to the diffusion-controlled dissolution of spherical precipitates in the technical alloy Nimonic PE16 under ion irradiation