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首页> 外文期刊>Materials Science and Engineering >Effect of aging treatment on the microstructure and mechanical properties of the similar and dissimilar 6061-T6/7075-T651 RSW joints;
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Effect of aging treatment on the microstructure and mechanical properties of the similar and dissimilar 6061-T6/7075-T651 RSW joints;

机译：时效处理对相似和相异的6061-T6 / 7075-T651 RSW接头的组织和力学性能的影响；

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摘要

The similar and dissimilar resistance spot weldability of 6061-T6 and 7075-T651 aluminium alloys was investigated in this study. Resistance spot weldability of commercial and aged samples in different variations was examined. The microstructure, microhardness, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and electron probe micro-analyses (EPMA) were conducted to study the effects aging heat treatment had on similar and dissimilar resistance spot welded (RSW) joints. In addition, tensile shear tests were performed to determine the mechanical properties and fracture behaviour of welded joints. The tests concluded that pre-weld aging heat treatment improves mechanical properties.
机译：本研究研究了6061-T6和7075-T651铝合金的相似和不相似的电阻点焊性能。检查了不同变化的商业和老化样品的电阻点焊性能。进行了显微组织，显微硬度，扫描电子显微镜（SEM），能谱分析（EDS），X射线衍射（XRD）和电子探针显微分析（EPMA），以研究时效热处理对相似和不相似的影响电阻点焊（RSW）接头。另外，进行了拉伸剪切试验以确定焊接接头的机械性能和断裂行为。测试得出结论，预焊接时效热处理可改善机械性能。

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