Inhomogeneity of Microstructure of Aluminum Alloy Welded Joint
Xian-Min Tang, Hai-Gen Jian, Jing-Fang Wu, Ling Ou
Available Online June 2014.
- https://doi.org/10.2991/icmsa-15.2015.88How to use a DOI?
- MIG Welding, Inhomogeneity of Microstructure, Welding Seam, Coarse Grain Zone.
- Al-Mg-Mn alloy hot-rolled plates with 10mm thick were welded by multipass MIG welding with the Al-Mg wire, and inhomogeneity of microstructure of the welded joint were examined by the methods of metallograph, scanning electron microscope (SEM) and energy spectrum. The results show that the inhomogeneity of microstructure is very obvious in different regions of welded joint. The weld zone is typical cast microstructure, heat affected zone (HAZ) retains the basic characteristics of hot-rolled and partial recrystallization occurs. Because of the grain refining effect of Al3Zr particle, a layer of fine grain structure, in which the grains are remarkably fine, is formed on the weld pool boundary. In two cladding welding interface, because of the similarity of microstructure of both sides, weld grains grow epitaxially along the heat dissipation direction and grain growth is more apparent.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Xian-Min Tang AU - Hai-Gen Jian AU - Jing-Fang Wu AU - Ling Ou PY - 2014/06 DA - 2014/06 TI - Inhomogeneity of Microstructure of Aluminum Alloy Welded Joint BT - 2015 International Conference on Material Science and Applications (icmsa-15) PB - Atlantis Press SP - 488 EP - 491 SN - 2352-541X UR - https://doi.org/10.2991/icmsa-15.2015.88 DO - https://doi.org/10.2991/icmsa-15.2015.88 ID - Tang2014/06 ER -