Effect of trace Sc and Zr on microstructure and properties of as-cast 5182 aluminum alloy

Fuwei Kang; Enhao Wang; Chun Tian; Wei Jiang; Pei Xu; Jinlong Lu

doi:10.1515/ijmr-2021-8587

Artikel

Effect of trace Sc and Zr on microstructure and properties of as-cast 5182 aluminum alloy

Fuwei Kang , Enhao Wang , Chun Tian , Wei Jiang , Pei Xu und Jinlong Lu

Veröffentlicht/Copyright: 30. Juni 2022

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Aus der Zeitschrift International Journal of Materials Research Band 113 Heft 8

Abstract

Four groups of 5182, 5182-0.4 % Sc, 5182-0.1 % Sc-0.3 % Zr and 5182-0.3 % Sc-0.1 % Zr (wt.%) aluminium alloys were prepared. The microstructures of these alloys were examined using optical microscopy, scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results showed that the addition of Sc leads to the effect of grain refinement, and adding both Sc and Zr makes this phenomenon even more obvious. The morphology and distribution of the second phase changed. The addition of Sc makes the tensile strength increase and the elongation decrease. Adding both Sc and Zr significantly improves the mechanical properties of the alloy. The tensile strength of 5182-0.3 % Sc-0.1 % Zr alloy reaches a maximum value of 223 MPa, and the Brinell hardness of the alloy reaches a maximum value of 88.7 HBW.

Keywords: 5182 alloy; Mechanical properties; Microstructure; Sc and Zr

Corresponding author: Enhao Wang, School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Linyuan Road No. 4, Harbin 150040, Harbin, P. R. China, E-mail: enhaowang@hrbeu.edu.cn

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was funded by The National Natural Science Foundation of China (Grant numbers 51901058), Major science and technology projects of ``millions'' project in Heilongjiang Province (Grant numbers 2020ZX03A03) and The Natural Science Foundation of Heilongjiang Province, China (Grant No.LH2020E084).
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-10-04

Accepted: 2022-03-15

Published Online: 2022-06-30

Published in Print: 2022-08-26

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https://doi.org/10.1515/ijmr-2021-8587

Schlagwörter für diesen Artikel

5182 alloy; Mechanical properties; Microstructure; Sc and Zr