期刊
ACTA MATERIALIA
卷 51, 期 3, 页码 713-729出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1359-6454(02)00449-4
关键词
friction stir welding; aluminum alloy; microstructures; dynamic recrystallization; transmission electron microscopy (TEM)
The grain structure, dislocation density and second phase particles in various regions including the dynamically recrystallized zone (DXZ), thermo-mechanically affected zone (TMAZ), and heat affected zone (HAZ) of a friction stir weld aluminum alloy 7050-T651 were investigated and compared with the unaffected base metal. The various regions were studied in detail to better understand the microstructural evolution during friction stir welding (FSW). The microstructural development in each region was a strong function of the local thermo-mechanical cycle experienced during welding. Using the combination of structural characteristics observed in each weld region, a new dynamic recrystallization model has been proposed. The precipitation phenomena in different weld regions are also discussed. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据