Formability of laser welded steel/magnesium dissimilar metal with Sn powder-adhesive interlayer
, , , oraz | 09 lip 2021
O artykule
Data publikacji: 09 lip 2021
Zakres stron: 113 - 123
Otrzymano: 02 mar 2021
Przyjęty: 10 kwi 2021
DOI: https://doi.org/10.2478/msp-2021-0014
Słowa kluczowe
© 2021 Tao Tao et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Fig. 7
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Fig. 9
EDS spot composition analysis results in Figure 7 (at%).
| Regions | Fe | Sn | Mg |
|---|---|---|---|
| I | – | – | 100 |
| II | 63.23 | 36.35 | – |
| III | – | 31.66 | 62.63 |
| IV | 00.33 | 36.41 | 62.85 |
Comparison of experimental weld size and simulation results (mm).
| P = 1,500, V = 40 mm/s | Steel plate surface melt width | Magnesium plate surface melt width | Magnesium plate melt depth | |
|---|---|---|---|---|
| Sn-adhesive interlayer | Experimental | 0.849 | 1.48 | 0.997 |
| Simulation | 0.93 | 1.45 | 0.89 | |
| Sn powder interlayer | Experimental | 0.827 | 1.38 | 1.27 |
| Simulation | 0.90 | 1.36 | 1.10 | |
Composition of welding base material (wt%).
| Materials | Al | Zn | Mn | Si | C | S | P | Fe | Mg |
|---|---|---|---|---|---|---|---|---|---|
| DP590 | 0.02 | – | 1.60 | 0.0446 | 0.068 | 0.015 | 0.011 | Bal. | – |
| AZ31B | 3.12 | 0.95 | 0.15 | 0.10 | – | – | – | 0.03 | Bal. |
Optimized process parameters used in present work.
| Parameters | Value |
|---|---|
| Laser power (W) | 1,500 |
| Laser defocus (mm) | +2 |
| Welding speed (mm/s) | 40 |
| Flow rate of Ar gas (L/min) | 15 |
Electron density of each element in the joints with Sn powder and Sn-adhesive interlayers.
| Interlayer | Fe (1017 cm−3) | Sn (1017 cm−3) | C (1017 cm−3) | Mg (1017 cm−3) |
|---|---|---|---|---|
| Sn powder | 6.5663 | 4.2696 | 0.9826 | 0.5347 |
| Sn-adhesive | 6.3263 | 3.4236 | 0.6060 | 0.8751 |