NDLI: Microstructures and tensile properties of Al-Zn-Cu-Mg-Zr alloys modified with scandium

Content Provider	Springer Nature Link
Author	Zou, Liang Pan, Qing Lin He, Yun Bin Liang, Wen Jie Wang, Chang Zhen
Copyright Year	2008
Abstract	We melted five types of Al-Zn-Cu-Mg-Zr alloys and added 0.0, 0.1, 0.2, 0.3, and 0.5 (wt.%) of scandium. Its influence on the microstructure of alloys and their mechanical properties is studied with the help of optical transmission and scanning electron microscopes. An insignificant amount of scandium promoted the formation of Al$_{3}$ (Sc, Zr) particles. These particles efficiently clean the microstructure, decelerate and preserve recrystallization, and fix dislocations and substructures. The strength of the alloys increases for high levels of plasticity. It is shown that the optimal properties of the alloys with 0.21% Sc are attained after holding in a solution for 40 min at 475°C and aging for 24 h at 120°C. The strength of the alloys increases mainly as a result of dispersion solidification and microstructural hardening with Al$_{3}$ (Sc, Zr) particles.
Starting Page	120
Ending Page	125
Page Count	6
File Format	PDF
ISSN	1068820X
Journal	Materials Science
Volume Number	44
Issue Number	1
e-ISSN	1573885X
Language	English
Publisher	Springer US
Publisher Date	2008-09-19
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Materials Science Characterization and Evaluation of Materials Structural Materials Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering

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