NDLI: Effect of Homogenization Temperature on Microstructure and Conductivity of Al-Mg-Si-Ce Alloy

Content Provider	Springer Nature Link
Author	Yuna, Wu Jianfeng, Zhang Hengcheng, Liao Yongjin, Wang Yuping, Wu
Copyright Year	2016
Abstract	Microstructure evolution of Al-0.2wt.%Mg-0.36wt.%Si-0.3wt.%Ce alloy at three different homogenization temperatures for 6 h was observed by optical microscopy, scanning electron microscopy, and x-ray diffraction. Conductivity and tensile properties of the alloy were tested. Results indicate that homogenization temperature has little effect on the macro-segregation and grain size of the as-cast Al-Mg-Si-Ce alloy; however, it has a significant effect on the conductivity. The conductivity is first improved to a maximum value of about 57.3% IACS with homogenization temperature increasing to 560 °C (2.7% higher than that of the as-cast sample), and then decreased when the temperature continuously increasing. The main contributor is considered to be vacancy concentration, which is directly related to the lattice distortion, thus affects the conductivity. The studied homogenization temperatures almost make no difference among the tensile properties of the alloy. The best homogenization temperature for Al-0.2wt.%Mg-0.36wt.%Si-0.3wt.%Ce alloy is 560 °C with the highest conductivity and no decrement of strength.
Starting Page	2720
Ending Page	2726
Page Count	7
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	25
Issue Number	7
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2016-05-13
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	aluminum conductivity homogenization rare earths tensile strength Characterization and Evaluation of Materials Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Engineering Design
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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