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Journal of Materials Engineering and Performance

Erschienen in:

15.06.2018

Fabrication of 7075-0.25Sc-0.15Zr Alloy with Excellent Damping and Mechanical Properties by FSP and T6 Treatment

verfasst von: Y. F. Mo, C. Y. Liu, G. B. Teng, H. J. Jiang, Y. Chen, Z. X. Yang, Y. Chen, S. C. Han

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 8/2018

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Abstract

This study investigated the effects of Sc and Zr additions, friction stir processing (FSP), and subsequent solid solution and artificial aging (T6) treatment on the microstructure, damping capacity, and mechanical properties of 7075 Al alloy. The minor Sc and Zr additions promoted the grain refinement of this alloy during FSP and inhibited the growth of fine equiaxed grains in the FSP sample during subsequent T6 treatment. Thus, the fine equiaxed grain structure and high density of the η′ precipitated phase were simultaneously obtained in the 7075 Al alloy containing Sc and Zr after FSP and T6 treatment, and this sample exhibited superior mechanical properties and damping capacity to those of the 7075 Al alloy after T6 treatment. This work provides an effective strategy for preparing Al alloys with excellent damping capacity and mechanical properties.

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Titel: Fabrication of 7075-0.25Sc-0.15Zr Alloy with Excellent Damping and Mechanical Properties by FSP and T6 Treatment
verfasst von: Y. F. Mo
C. Y. Liu
G. B. Teng
H. J. Jiang
Y. Chen
Z. X. Yang
Y. Chen
S. C. Han
Publikationsdatum: 15.06.2018
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 8/2018
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-018-3451-2

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