粗晶/细晶层状钛、粗晶/细晶层状铝的微观组织设计与可控制备

在层状构型材料中，“粗晶层/细晶层厚比”是描述几何构型的重要参数之一。与均质材料不同，层状构型材料的性能高度依赖于层周期、相邻层厚度比例以及界面连续性。在层状构型材料中，粗晶/细晶晶粒尺寸比是衡量微观结构异质性特征的重要指标，它不仅决定了材料力学性能的宏观表现，也对位错运动、应力传递及界面调控等微观机制具有重要影响。本数据集旨在实现不同构型参数和微观组织特征的粗晶/细晶层状钛、粗晶/细晶层状铝的可控制备；建立粗晶/细晶层状构型材料“制备工艺参数-微观组织-力学性能”之间的构效关系突破材料层状构型设计与可控制备技术，为后续微观应力与变形微结构分析奠定基础。使用扫描电子显微镜分别测量粗晶层、细晶层的层厚度；通过粗晶层层厚除以细晶层层厚，计算得到粗晶/细晶层状钛、粗晶/细晶层状铝的层厚比参数。使用电子背散射衍射方法分别测量粗晶层、细晶层的晶粒尺寸；通过粗晶层晶粒尺寸除以细晶层晶粒尺寸，计算得到粗晶/细晶层状钛、粗晶/细晶层状铝的晶粒尺寸比参数，经过分析得到满足项目考核指标的数据。该数据集共包括2个数据文件夹和1个数据文件，其中：(1) “粗晶细晶层厚” 文件夹是粗晶/细晶层厚数据，数据量为7.16MB；(2) “粗晶细晶层厚比” 文件夹是粗晶/细晶层厚比数据，数据量为2.49MB；(2) “粗晶细晶晶粒尺寸比” 文件夹是粗晶/细晶晶粒尺寸比数据，数据量为11.5MB。总数据量为21.2MB。

In layered configuration materials, the 'coarse-grain layer/fine-grain layer thickness ratio' is one of the key parameters describing the geometric configuration. Unlike homogeneous materials, the properties of layered configuration materials are highly dependent on layer period, thickness ratio of adjacent layers, and interface continuity. The coarse-grain/fine-grain size ratio in layered configuration materials is an important indicator for measuring microstructural heterogeneity; it not only determines the macroscopic performance of the material's mechanical properties but also has a significant impact on micro-mechanisms such as dislocation movement, stress transfer, and interface regulation. This dataset aims to realize the controllable preparation of coarse-grain/fine-grain layered titanium and coarse-grain/fine-grain layered aluminum with different configuration parameters and microstructural characteristics; establish the structure-property relationship between 'preparation process parameters-microstructure-mechanical properties' for coarse-grain/fine-grain layered configuration materials, break through the layered configuration design and controllable preparation technology of materials, and lay a foundation for subsequent analysis of micro-stress and deformation microstructure. The thicknesses of coarse-grain layers and fine-grain layers were measured using Scanning Electron Microscopy (SEM); the layer thickness ratio parameters of coarse-grain/fine-grain layered titanium and coarse-grain/fine-grain layered aluminum were calculated by dividing the thickness of coarse-grain layers by that of fine-grain layers. The grain sizes of coarse-grain layers and fine-grain layers were measured using Electron Backscatter Diffraction (EBSD); the grain size ratio parameters of coarse-grain/fine-grain layered titanium and coarse-grain/fine-grain layered aluminum were calculated by dividing the grain size of coarse-grain layers by that of fine-grain layers, and data meeting the project assessment indicators were obtained through analysis. This dataset includes 2 data folders and 1 data file: (1) The 'Coarse-Fine Grain Layer Thickness' folder contains data on coarse-grain/fine-grain layer thicknesses, with a data volume of 7.16MB; (2) The 'Coarse-Fine Grain Layer Thickness Ratio' folder contains data on coarse-grain/fine-grain layer thickness ratios, with a data volume of 2.49MB; (2) The 'Coarse-Fine Grain Size Ratio' folder contains data on coarse-grain/fine-grain size ratios, with a data volume of 11.5MB. The total data volume is 21.2MB.