本研究旨在探讨分布气孔对5083双V对接焊件在恒定振幅、0-拉应力循环下的疲劳抗力的影响。在试验前，通过正入射射线照相记录孔隙度水平，并直接在疲劳断裂表面上测量。这项研究是之前关于气孔对5083和6061焊接件拉伸性能影响的研究的延伸。由于使用了之前研究中遗留下来的5083/5183材料，同一系列5083焊缝产生了拉伸和疲劳性能。

The current study is an inquiry into the effect of distributed porosity on the fatigue resistance of 5083 double-V butt weldments subjected to a constant amplitude, 0-tension stress cycle. Porosity levels were recorded by normal incidence radiography prior to testing and measured directly on the fatigue fracture surfaces. This study is an extension of a previous study of the effects of porosity on the tensile properties of 5083 and 6061 weldments. Since 5083/5183 materials left over from that previous study have been used, both the tensile and fatigue properties have been generated for the same series of 5083 welds.