Microstructures and properties of 6016 aluminum alloy with gradient composition

• 作者: Xiang-Jie Wang Wei Sun Jun-Fu Chen Fu-Yue Wang Lei Li Jian-Zhong Cui
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 2154-2159
• 页数: 6页
• 语种: 英文

摘要

Weight reduction plays an important role in reducing fuel and emissions,and the heat-treatable 6016 aluminum alloy exhibits excellent application prospect in automobile lightweight.In this paper,ingot with constant Mg/Si ratio and decreased Mg and Si contents was obtained.Both the microstructure and the texture of 6016 aluminum alloy plate designed with different alloy com-positions at the top/bottom were systematically investi-gated by electron backscatter diffraction technology(EBSD) measurement,as well as the room-temperature mechanical properties at the different positions with com-position gradient.The results indicate that as Mg and Si contents increase,the grain size decreases,improving the cube texture with recrystallization and weakening the S texture.The strength of 6016 aluminum alloy decreases with lower Mg and Si contents.