多模态图组合中的纳米压痕：局部力学性能评估的相关方法
Nanoindentation in multi-modal map combinations: A Correlative Approach to Local Mechanical Property Assessment
摘要：
提出了一种材料本征性质图的配准和关联方法，包括纳米压痕硬度、电子背散射衍射（EBSD）和电子探针分析（EPMA）数据。这种高度空间分辨的方法允许研究微米级的微观结构特征，并能够从包含数千个数据点的数据集中快速提取多个感兴趣特征之间的相关性。在商业纯钛（CP）的两个案例研究：在第一种情况下，晶体各向异性对测得的硬度的影响，在第二种情况下，氧扩散层对硬度的影响。独立收集的属性映射使用仿射几何变换进行配准，并进行插值以允许直接相关。结果显示与文献中观察到的趋势非常一致，并提供了一个大型数据集，以促进未来的微观结构依赖机制的统计分析。
英文摘要：
A method is presented for the registration and correlation of intrinsic property maps of materials, including data from nanoindentation hardness, Electron Back-Scattered Diffraction (EBSD), Electron Micro-Probe Analysis (EPMA). This highly spatially resolved method allows for the study of micron-scale microstructural features, and has the capability to rapidly extract correlations between multiple features of interest from datasets containing thousands of datapoints. Two case studies are presented in commercially pure (CP) titanium: in the first instance, the effect of crystal anisotropy on measured hardness and, in the second instance, the effect of an oxygen diffusion layer on hardness. The independently collected property maps are registered us-ing affine geometric transformations and are interpolated to allow for direct correlation. The results show strong agreement with trends observed in the literature, as well as providing a large dataset to facilitate future statistical analysis of microstructure-dependent mechanisms.
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