Acta Metallurgica Sinica (English Letters) ›› 2019, Vol. 32 ›› Issue (7): 817-824.DOI: 10.1007/s40195-019-00887-2
Special Issue: 2019年镁合金专辑
• Orginal Article • Previous Articles Next Articles
Zhu Luo1, Xian-Hua Chen1,2(), Kai Song1, Chun-Quan Liu1, Yan Dai1, Di Zhao1, Fu-Sheng Pan1,2
Received:
2018-11-24
Revised:
2019-01-18
Accepted:
2019-05-18
Online:
2019-03-18
Published:
2019-06-20
Zhu Luo, Xian-Hua Chen, Kai Song, Chun-Quan Liu, Yan Dai, Di Zhao, Fu-Sheng Pan. Effect of Alloying Element on Electromagnetic Interference Shielding Effectiveness of Binary Magnesium Alloys[J]. Acta Metallurgica Sinica (English Letters), 2019, 32(7): 817-824.
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Mg-X (wt%) | Al | Sn | Y | Gd |
---|---|---|---|---|
1 | 1.22 | 1.11 | 0.98 | 1.03 |
3 | 3.02 | 3.00 | 3.02 | 3.03 |
5 | 4.79 | 5.02 | 4.93 | 5.02 |
Table 1 Chemical compositions of the four binary Mg alloys
Mg-X (wt%) | Al | Sn | Y | Gd |
---|---|---|---|---|
1 | 1.22 | 1.11 | 0.98 | 1.03 |
3 | 3.02 | 3.00 | 3.02 | 3.03 |
5 | 4.79 | 5.02 | 4.93 | 5.02 |
Alloys | Shielding effectiveness (dB) | References | ||
---|---|---|---|---|
900 MHz | 1200 MHz | 1500 MHz | ||
ZK60 | 55 | 52 | 50 | [ |
2024 Al alloy | 35 | 35 | 35 | [ |
Mg--1Al | 80 | 80 | 80 | This work |
Mg-1Sn | 74 | 70 | 63 | This work |
Mg-1Y | 74 | 71 | 66 | This work |
Mg-1Gd | 70 | 60 | 59 | This work |
Table 2 Electromagnetic shielding effectiveness of magnesium alloys and aluminum alloy reported in the literature and this work
Alloys | Shielding effectiveness (dB) | References | ||
---|---|---|---|---|
900 MHz | 1200 MHz | 1500 MHz | ||
ZK60 | 55 | 52 | 50 | [ |
2024 Al alloy | 35 | 35 | 35 | [ |
Mg--1Al | 80 | 80 | 80 | This work |
Mg-1Sn | 74 | 70 | 63 | This work |
Mg-1Y | 74 | 71 | 66 | This work |
Mg-1Gd | 70 | 60 | 59 | This work |
The four alloying elements | Al | Sn | Y | Gd |
---|---|---|---|---|
ΔV/VMg (%) | -?28.420 | +?16.678 | +?41.732 | +?42.448 |
Chemical valence | +?3 | +?4 | +?3 | +?2, +?3 |
Configuration of extranuclear electron | 3s23p1 | 4d105s25p2 | 4d15s2 | 4f75d16s2 |
Table 3 ΔV/VMg, valence and configuration of extranuclear electron of the four alloying elements [34]
The four alloying elements | Al | Sn | Y | Gd |
---|---|---|---|---|
ΔV/VMg (%) | -?28.420 | +?16.678 | +?41.732 | +?42.448 |
Chemical valence | +?3 | +?4 | +?3 | +?2, +?3 |
Configuration of extranuclear electron | 3s23p1 | 4d105s25p2 | 4d15s2 | 4f75d16s2 |
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