论文标题
多模式地图组合中的纳米凹痕：局部机械性能评估的相关方法
Nanoindentation in multi-modal map combinations: A Correlative Approach to Local Mechanical Property Assessment
论文作者
论文摘要
提出了一种用于材料内在特性图的注册和相关性的方法，包括来自纳米凹痕硬度，电子背裂纹衍射（EBSD），电子微型探针分析（EPMA）的数据。这种高度空间解析的方法允许研究微米级的微观结构特征，并且能够从包含数千个数据标记的数据集之间快速提取感兴趣的多个特征之间的相关性。在商业上纯净（CP）钛中介绍了两项研究：首先，晶体各向异性对测量硬度的影响，在第二种情况下，氧扩散层对硬度的影响。独立收集的属性图已注册为美国仿射几何变换，并进行插值以允许直接相关。结果表明，与文献中观察到的趋势有很强的一致性，并提供了一个大数据集，以促进对微观结构依赖机制的未来统计分析。
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.
