Experimental Dataset for Friction Stir Processing, Electrochemical Corrosion, and Stress Corrosion Cracking of ZE41 and AZ91D Magnesium Alloys

This dataset encompasses experimental data related to friction stir processing (FSP), electrochemical corrosion and sustained-load stress corrosion cracking of ZE41 and AZ91D magnesium alloys. Sensor Core Dataset The core data set consists of 14 records of SCC time-series measurements with corresponding system time, elapsed time and load evolution (indicated load for exposure to 3.5 wt. at nominal loading levels (20-100% of yield strength) in a 5 M % NaCl solution. The measured SCC records are: AZ91D base metal, AZ91D friction stir processed conditions at 20, 40, 60 and 80% YS (in that order of decreasing active SCC rate) together with ZE41 friction stir processed conditions at 20, 40, 60 and 80% YS. The repo also includes collection of standardised csv files, data dictionary, record inventory, quality-control notes, raw-versus-reported cross-checks for five-level friction stir processing parameter tables (e.g. Central Composite Design matrices bluever 20 runs ZE41 and AZ91D per sign level; Tables S3-S4), and potentiodynamic polarization summary data from the base metal directly adjacent to TMAZ and stir-zone condition (Table S5). 100% YS from synthetic reconstructions of ZE41-BM and ZE41-FSP are not shown in the main experimental dataset.本数据集涵盖了ZE41与AZ91D镁合金的搅拌摩擦加工（Friction Stir Processing, FSP）、电化学腐蚀及持续载荷应力腐蚀开裂（Stress Corrosion Cracking, SCC）相关的实验数据。传感器核心数据集：核心数据集包含14组应力腐蚀开裂时序测量记录，配套记录了系统时间、流逝时长与载荷演化数据；实验于3.5 wt.%氯化钠溶液中开展，载荷设置为标称载荷水平（屈服强度的20%~100%），载荷值对应暴露工况的指示载荷。所测得的应力腐蚀开裂记录依次为：AZ91D母材、分别在20%、40%、60%、80%屈服强度载荷下的AZ91D搅拌摩擦加工态（该顺序对应应力腐蚀开裂活性速率递减），以及分别在20%、40%、60%、80%屈服强度载荷下的ZE41搅拌摩擦加工态。本数据集仓库还包含标准化逗号分隔值（CSV）文件集、数据字典、记录清单、质量控制说明、原始数据与报告数据交叉校验文件，以及针对五级搅拌摩擦加工参数表（例如中心复合设计矩阵，每个符号水平下为ZE41和AZ91D各设置20组试验；表S3~S4）的相关校验项，此外还包含紧邻热机械影响区（Thermo-Mechanically Affected Zone, TMAZ）与搅拌区的母材的动电位极化汇总数据（表S5）。基于ZE41母材（ZE41-BM）和ZE41搅拌摩擦加工态（ZE41-FSP）的100%屈服强度合成重构数据未纳入主实验数据集。