期刊
RARE METALS
卷 40, 期 8, 页码 2154-2159出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-020-01515-0
关键词
6016 Aluminum alloy plate; Mg and Si contents; Mechanical properties
资金
- National Key Research and Development Program of China [2016YFB0300901]
- National Natural Science Foundation of China [U1708251, U1608252]
- Liaoning Revitalization Talents Program [XLYC1807027]
- Fundamental Research Funds for the Central Universities [N180905010, 2020JH2/10700003]
This study systematically investigated the microstructure and texture of 6016 aluminum alloy plates with different alloy compositions, showing that as Mg and Si contents increase, the grain size decreases and the strength of the alloy decreases.
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 compositions at the top/bottom were systematically investigated by electron backscatter diffraction technology (EBSD) measurement, as well as the room-temperature mechanical properties at the different positions with composition 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.
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