DEPTH RESOLVED STRAIN AND PHASE MAPPING OF DISSIMILAR FRICTION STIR WELDS USING HIGH ENERGY SYNCHROTRON RADIATION
DEPTH RESOLVED STRAIN AND PHASE MAPPING OF DISSIMILAR FRICTION STIR WELDS USING HIGH ENERGY SYNCHROTRON RADIATION
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使用高能同步辐射的异种摩擦搅拌焊的深度分辨应变和相图
DOI：
10.1080/07303300310001628625
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
V. Honkimäki
中科院分区：
文献类型：
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作者：
R. Martins;V. Honkimäki
对AA 6082-T6和AA 2024-T3异种材料搅拌摩擦焊焊缝的应变和相分布进行了无损检测。使用一种新的深度分辨应变和相位映射技术进行测量。该技术是基于使用的聚焦高能同步加速器光束，一种新型的螺旋狭缝系统，和一个区域检测器系统。通过对焊缝中心残余应变沿着的厚度测量，显示出随符号变化的强烈变化。整个焊缝的应变扫描表现出很强的不对称性，特别是纵向应变分量。整个焊缝的深度分辨应变图显示了主要的纵向应变分量在深度上的变化，特别是在焊缝的AA 6082侧。应变测量的结果与焊接区材料分布的深度分辨图有关。
The strain and phase distribution in a dissimilar friction stir weld of AA6082-T6 to AA2024-T3 is investigated non-destructively. The measurements are performed using a novel depth resolved strain and phase mapping technique. The technique is based on the use of a focussed high energy synchrotron beam, a novel spiral slit system, and an area detector system. Through thickness measurements of the residual strain along the weld centre show strong variations with changes of sign. The strain scans across the weld exhibit a strong asymmetry in particular for the longitudinal strain component. A depth resolved strain mapping across the weld shows for the dominant longitudinal strain component variations in depth, especially on the AA6082 side of the weld. Results from the strain measurements are related to the depth resolved map of the material distribution in the weld zone.