Experimental data and macrostructure images of laser-welded AHSS joints

This dataset contains experimental results obtained from fatigue testing of laser-welded joints made of advanced high-strength steel (AHSS). The data include fatigue test results summarized in Excel format.Additionally, high-resolution macrostructure images of representative weld cross-sections are provided. The dataset supports the findings presented in the manuscript “Enhancement of fatigue performance of thin HSLA steel laser-welded butt joints” and can be used for further validation of fatigue behaviour of AHSS butt welds.本数据集涵盖先进高强度钢（Advanced High-Strength Steel，AHSS）激光焊接接头的疲劳试验结果，相关数据以Excel格式汇总整理；此外，数据集还提供了典型焊接接头横截面的高分辨率宏观组织图像。 本数据集支撑了题为《薄规格高强度低合金钢（High-Strength Low-Alloy Steel，HSLA）激光焊接对接接头疲劳性能提升》的研究手稿中的实验结论，可用于进一步验证AHSS对接焊缝的疲劳特性。