Unlocking the Synergistic Impact of Laser Texturing and Ti3C2Tx MXene Coatings - Substrate-Specific Tribological Insights

Data for the Main Article:
Figure 1. Schematic illustration of the overall idea. Light microscopy images from laser-textured AISI 304 steel samples.
Figure 2. Coefficient of friction (COF) vs. time curves for the polished AISI 304 steel reference (SRef) and steel samples
Figure 3. Coefficient of friction (COF) vs. time records for the polished TiAl6V4 substrates (TRef) and TiAl6V4 samples.
Figure 4. Laser confocal microscopy measurement procedure.
Figure 5. Exemplary scanning electron microscopy images.
Figure 6. Scanning electron microscopy images and EDX point analyses on the wear track together with Corresponding Raman spectra for the AISI 304 steel and TiAl6V4 surfaces.
Figure 7. Focused ion beam (FIB) cross-section of an MXene-coated TiAl6V4 and steel sample with the corresponding position for FIB cutting in the center of the wear track as well as the prepared TEM lamella.
Figure 8. Transmission electron microscopy (TEM)-EDX analysis for MXene-coated steel and TiAl6V4 surfaces
Figure 9. High-resolution TEM images of a wear track in the AISI 304 steel sample with a 6 µm line-like laser texture and MXene-coated and TiAl6V4 sample with a laser pocket (15 µm line-like pattern with MXene coating) revealing a demixing of the MXenes with a clearly visible carbon layer in the middle of the pocket.

Data for the Supporting Information:
Figure 1: Atomic illustration of Ti3C2Tx
Table 1: Summary of the used sSample labeling of study portfolioin this study.
Table 2: Average depth values for each textured sample in the scope of thethis study.
Figure 2: Selected areas for Raman measurements discussed in the mail article Figure. 6
Figure 3: Bright-field image of multi-layer MXenes embedded in the laser-pocket of TiAl6V4 sample shown in Figure 7a2 with detail of demixing with carbon and MXene layers.
Figure 4: Energy dispersive spectroscopy results for the laser pocket in Figure 7a2 that shows a) pronounced carbon peak inside the pocket, b) notable titanium and carbon signals in the MXene layer as well as c) titanium and vanadium peaks for the TiAl6V4 substrate .
Figure 5: Bright-field image of MXene layers in laser-pocket of AISI 304 sample, shown in Figure 7b2 illustrating the ongoing bending and folding of the MXene layers.

数据集正文说明：
图1 整体研究思路示意图，展示经激光纹理加工的AISI 304不锈钢样品的光学显微图像。
图2 抛光态AISI 304不锈钢对照样（SRef）与该系列不锈钢样品的摩擦系数（Coefficient of Friction, COF）随时间变化曲线。
图3 抛光态TiAl6V4合金基体对照样（TRef）与该系列TiAl6V4合金样品的摩擦系数随时间变化记录曲线。
图4 激光共聚焦显微成像测试流程。
图5 典型扫描电子显微镜（Scanning Electron Microscopy, SEM）图像。
图6 AISI 304不锈钢与TiAl6V4合金表面磨痕处的扫描电子显微镜图像、能谱点分析（Energy Dispersive X-ray Spectroscopy, EDX）及对应拉曼光谱（Raman spectra）。
图7 MXene涂层TiAl6V4合金与不锈钢样品的聚焦离子束（Focused Ion Beam, FIB）截面图，包含磨痕中心处的聚焦离子束切割位置及制备的透射电子显微镜（Transmission Electron Microscopy, TEM）薄片样品。
图8 MXene涂层不锈钢与TiAl6V4合金表面的透射电子显微镜-能谱分析（TEM-EDX analysis）。
图9 带有6μm线状激光纹理的AISI 304不锈钢样品磨痕的高分辨透射电子显微镜图像，以及带有激光凹坑（15μm线状图案并经MXene涂层）的TiAl6V4合金样品磨痕图像，二者均呈现MXene相分离现象，凹坑中部可见清晰碳层。

数据集支撑信息说明：
图1 Ti3C2Tx的原子结构示意图。
表1 本研究所用全部样品的编号汇总表。
表2 本研究范围内各纹理加工样品的平均深度值汇总表。
图2 正文图6中讨论的拉曼光谱测试选区。
图3 TiAl6V4合金样品激光凹坑内多层MXene包覆层的明场图像（对应图7a2），展示了碳层与MXene层相分离的细节。
图4 图7a2中激光凹坑的能谱测试结果：a) 凹坑内部存在显著碳峰，b) MXene层中存在明显的钛与碳信号，c) TiAl6V4合金基体处存在钛与钒特征峰。
图5 AISI 304不锈钢样品激光凹坑内MXene层的明场图像（对应图7b2），展示了MXene层持续弯折与折叠的状态。