广东工业大学学报2012，Vol.29Issue(3)：96-98,110,4.DOI:10.3969/j.issn.1007-7162.2012.03.019
5083-H321铝合金板材搅拌摩擦焊缝组织演变
The Microstructural Evolution of Friction Stir Welded 5083-H321 Aluminum Alloy Plates
摘要
Abstract
The 5083-H321 aluminum alloy plate was jointed by friction stir welding. The comparative studies of the organization of weld and base metal were conducted with optical microscopy, scanning electron microscopy, electron back scattered diffraction and orientation imaging microscopy. The results show that there are no macroscopic defects in the weld. The organizational characteristics are obviously different between the welding seam and the base metal. Friction stir welding makes a large number of low-angle grain boundaries transform into high-angle grain boundaries in the nugget zone. The grain size distribution of the base metal and the nugget zone is 6 ~ 55 μm and 15-30 μm respectively while the shape aspect ratio is 2 ~ 8 and 1. 5 ~ 3 respectively. The grains of the nugget zone show homogeneous and equi-axed morphology characteristics of dynamic recrystallization.关键词
5083铝合金/搅拌摩擦焊/组织/演变/焊缝Key words
5083 aluminum alloy/ friction stir welding/ microslructures/ evolution/ weld分类
矿业与冶金引用本文复制引用
刘洪,袁鸽成,黄泽涛,梁春朗,吴亚,吴红辉..5083-H321铝合金板材搅拌摩擦焊缝组织演变[J].广东工业大学学报,2012,29(3):96-98,110,4.基金项目
广东省重大科技专项(2008A090300004) （2008A090300004）
广东省教育厅211工程学科建设项目 （）
