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Volume 14
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Correction to Materials 2020, 13(12), 2720.
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Correction

Correction: Wang, F., et al. Effect of Low-Frequency Electromagnetic Casting on Micro-Structure and Macro-Segregation of 5A90 Alloy Ingots. Materials 2020, 13, 2720

by
Fuyue Wang
1,2,*,
Xiangjie Wang
1,2,* and
Jianzhong Cui
1,2
1
Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
2
College of Materials Science and Engineering, Northeastern University, 314 Mailbox, Shenyang 110819, China
*
Authors to whom correspondence should be addressed.
Materials 2021, 14(3), 572; https://doi.org/10.3390/ma14030572
Submission received: 8 January 2021 / Accepted: 19 January 2021 / Published: 26 January 2021
Browse Figure
Versions Notes
In the original article [1], there was a mistake in Figure 4 as published. The scale of vertical axis is wrong. The corrected Figure 4 appears below.
There was also an error in the original article. A correction has been made to Section 3.2. Macro-Segregation, paragraph 1. The sentence “There is the large segregation rate of Mg, which appeared close to the surface of the ingot, with a maximal relative segregation rate of 1.20%” should be replaced with “There is the large segregation rate of Mg, which appeared close to the surface of the ingot, with a maximal relative segregation rate of 12.0%”.
The corrected paragraph is present below:
The concentration of alloying elements at different positions of the 5A90 alloy ingots was detected using ICP-AES, and the degree of segregation can be expressed as the relative segregation rate as shown in Equation (1).
Δ C = c i − c o c o
where ci is the concentration of alloying elements detected at each position, and co is the initial concentration of alloying elements. Figure 4 shows the relative segregation rate of the major alloying elements (Mg and Li) versus different positions of the 5A90 ingots. It could be seen from the value of the relative segregation rate that the Mg exhibited a higher segregation tendency as compared to Li. This is due to the different equilibrium distribution coefficients of Mg and Li in aluminum (kMg < kLi). There is the large segregation rate of Mg, which appeared close to the surface of the ingot, with a maximal relative segregation rate of 12.0%. The ingots prepared by DCC and LFEC had a nearly identical segregation pattern. Negative segregation occurred in the center and strong positive segregation occurred on the ingot’s surface, accompanied by a strong negative segregation zone close to the surface. However, the degree of segregation was obviously alleviated by LFEC through the whole cross-section, from surface to center. Depending on the results above, LFEC can effectively improve alloying element macro-segregation of the 5A90 alloy ingot and narrow down the strong negative segregation zone which occurs near the surface of the ingot.
The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected.

Reference

  1. Wang, F.; Wang, X.; Cui, J. Effect of Low-Frequency Electromagnetic Casting on Micro-Structure and Macro-Segregation of 5A90 Alloy Ingots. Materials 2020, 13, 2720. [Google Scholar] [CrossRef]
Materials 14 00572 g004 550
Figure 4. Relative segregation rate of alloying element of 5A90 ingots cast by DCC and LFEC with 10 Hz/100 A. (a) Mg; (b) Li.
Figure 4. Relative segregation rate of alloying element of 5A90 ingots cast by DCC and LFEC with 10 Hz/100 A. (a) Mg; (b) Li.
Materials 14 00572 g004
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MDPI and ACS Style

Wang, F.; Wang, X.; Cui, J. Correction: Wang, F., et al. Effect of Low-Frequency Electromagnetic Casting on Micro-Structure and Macro-Segregation of 5A90 Alloy Ingots. Materials 2020, 13, 2720. Materials 2021, 14, 572. https://doi.org/10.3390/ma14030572

AMA Style

Wang F, Wang X, Cui J. Correction: Wang, F., et al. Effect of Low-Frequency Electromagnetic Casting on Micro-Structure and Macro-Segregation of 5A90 Alloy Ingots. Materials 2020, 13, 2720. Materials. 2021; 14(3):572. https://doi.org/10.3390/ma14030572

Chicago/Turabian Style

Wang, Fuyue, Xiangjie Wang, and Jianzhong Cui. 2021. "Correction: Wang, F., et al. Effect of Low-Frequency Electromagnetic Casting on Micro-Structure and Macro-Segregation of 5A90 Alloy Ingots. Materials 2020, 13, 2720" Materials 14, no. 3: 572. https://doi.org/10.3390/ma14030572

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