Friction coefficient data of open-cell AlSi10Mg and AlSi10Mg-Al2O3 materials with different pore sizes by pin-on-disk test and machine learning prediction

Description

The data folders and files are organized in the repository as follows: Pin-on-disk_data folder contains three subfolders (Raw_files; Processed_files; COF_calculation). The Raw_files subfolder contains 12 DWF files with the raw data for each specimen. The Processed_files subfolder contains 12 XLSX files with the processed data for each specimen. The COF_calculation subfolder contains eight XLSX files with the average COF and time data for each material, two PNG files with the plots of the average COF vs time for each material pair, and one python script for calculating and visualizing the average COF and time data. Prediction folder contains three subfolders (Input_files; Output_data; Python_COF_prediction). The Input_files subfolder contains four XLSX files with the input data for the python script to make the predictions of COF vs sliding time for each material. The Output_data subfolder contains eight XLSX files with the actual and predicted values of COF for two different sets (test and validation) of each material, four TXT files with the performance metrics of the predicted COF for each material, and four PNG files with the plots of the actual vs predicted COF as a function of time for each material. The Python_COF_prediction subfolder contains one python script for making and evaluating the predictions of COF vs sliding time using a XGBoost model. The data were collected by performing dry wear tests at room temperature with linear velocity 0.5 m∙s−1, load 50 N and sliding time of 420 s. The labels of the specimen indicate the following: • AC_3_2, AC_3_3, AC_3_4, are three datasets used for pin-on-disk tests conducted with open-cell AlSi10Mg-Al2O3 composite with pore size of 800 ÷ 1000 μm (AC); • C_5_1, C_5_2, C_5_3, are three datasets used for pin-on-disk tests conducted with open-cell AlSi10Mg material with pore size of 800 ÷ 1000 μm (C); • AE_3_2, AE _4_1, AE _6_6, are three datasets used for pin-on-disk tests conducted with open-cell AlSi10Mg- Al2O3 composite with pore size of 1000 ÷ 1200 μm (AE); • E_3_1, E _6, E _6_3, are three datasets used for pin-on-disk tests conducted with open-cell AlSi10Mg material with pore size of 1000 ÷ 1200 μm (E).

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