【摘 要】
：
本文采用AZ91焊丝和ME20M焊丝对AZ91焊接接头组织和性能的影响进行探索性研究。分别对开有5mm深的V型槽的AZ91板材进行了各种焊接参数下的钨极氩弧焊(TIG)的工艺试验。通过对
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本文采用AZ91焊丝和ME20M焊丝对AZ91焊接接头组织和性能的影响进行探索性研究。分别对开有5mm深的V型槽的AZ91板材进行了各种焊接参数下的钨极氩弧焊(TIG)的工艺试验。通过对焊接接头成形情况、焊缝显微组织的金相分析、X射线衍射分析及焊接接头的显微硬度分析,发现使用于母材相同的AZ91接头性能明显好于ME20M。
In this paper, AZ91 welding wire and ME20M wire on the microstructure and properties of AZ91 welded joint exploration research. The process of TIG welding under various welding parameters was carried out on AZ91 sheet with 5 mm deep V-groove respectively. Through the analysis of the forming conditions of the welded joint, the metallographic analysis of the microstructure of the weld seam, the X-ray diffraction analysis and the microhardness analysis of the welded joint, it was found that the performance of the AZ91 joint used for the same base metal is obviously better than that of the ME20M.
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