Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg
The sessile drop method combined with a capillary purification procedure was used, for the first time, to analyze the high-temperature behavior of molten Mg on three dissimilar substrates: 1) molybdenum, 2) tantalum and 3) AISI 316L stainless steel. All tests were performed under isothermal conditio...
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KeAi Communications Co., Ltd.
2025-03-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956725000556 |
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| author | S. Terlicka N. Sobczak K. Janus J.J. Sobczak |
| author_facet | S. Terlicka N. Sobczak K. Janus J.J. Sobczak |
| author_sort | S. Terlicka |
| collection | DOAJ |
| description | The sessile drop method combined with a capillary purification procedure was used, for the first time, to analyze the high-temperature behavior of molten Mg on three dissimilar substrates: 1) molybdenum, 2) tantalum and 3) AISI 316L stainless steel. All tests were performed under isothermal conditions at 720 °C in a protective atmosphere (Ar + 5 wt.% H2). Images of Mg/substrate couples recorded during the experiments were used to calculate the contact angles (θ) formed between the liquid Mg drop and the selected substrates.After the sessile drop tests, the Mg/Mo, Mg/Ta, and Mg/AISI 316L couples were subjected to in-depth microstructural characterization using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).Under the employed experimental conditions, oxide-free Mg drops on all tested couples presented non-wetting behavior (θ > 90°). The average values of the calculated contact angles after 40 s of liquid Mg deposition were θMg/Mo = 124°, θMg/Ta= 125°, and θMg/AISI 316L= 126°, respectively. The SEM/EDS analysis showed no mass transfer and no bonding between solidified drops and the substrates. This non-reactive and non-wetting behavior of investigated couples can be associated with the immiscible nature of the Mg-Mo, Mg-Ta, and Mg-Fe systems, where the solubility of liquid Mg with all tested materials is negligible, and Mg does not form any compounds with them. |
| format | Article |
| id | doaj-art-1bb2bcf7690040d0a79d1b0a198165ea |
| institution | DOAJ |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-1bb2bcf7690040d0a79d1b0a198165ea2025-08-20T03:05:39ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-03-011331149115910.1016/j.jma.2025.02.012Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten MgS. Terlicka0N. Sobczak1K. Janus2J.J. Sobczak3Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland; Corresponding author.Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, PolandFaculty of Foundry Engineering, AGH University of Krakow, 23 Reymonta St., 30-059 Krakow, PolandFaculty of Foundry Engineering, AGH University of Krakow, 23 Reymonta St., 30-059 Krakow, PolandThe sessile drop method combined with a capillary purification procedure was used, for the first time, to analyze the high-temperature behavior of molten Mg on three dissimilar substrates: 1) molybdenum, 2) tantalum and 3) AISI 316L stainless steel. All tests were performed under isothermal conditions at 720 °C in a protective atmosphere (Ar + 5 wt.% H2). Images of Mg/substrate couples recorded during the experiments were used to calculate the contact angles (θ) formed between the liquid Mg drop and the selected substrates.After the sessile drop tests, the Mg/Mo, Mg/Ta, and Mg/AISI 316L couples were subjected to in-depth microstructural characterization using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).Under the employed experimental conditions, oxide-free Mg drops on all tested couples presented non-wetting behavior (θ > 90°). The average values of the calculated contact angles after 40 s of liquid Mg deposition were θMg/Mo = 124°, θMg/Ta= 125°, and θMg/AISI 316L= 126°, respectively. The SEM/EDS analysis showed no mass transfer and no bonding between solidified drops and the substrates. This non-reactive and non-wetting behavior of investigated couples can be associated with the immiscible nature of the Mg-Mo, Mg-Ta, and Mg-Fe systems, where the solubility of liquid Mg with all tested materials is negligible, and Mg does not form any compounds with them.http://www.sciencedirect.com/science/article/pii/S2213956725000556Liquid MgMolybdenumTantalumStainless steelSessile drop methodContact angle |
| spellingShingle | S. Terlicka N. Sobczak K. Janus J.J. Sobczak Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg Journal of Magnesium and Alloys Liquid Mg Molybdenum Tantalum Stainless steel Sessile drop method Contact angle |
| title | Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg |
| title_full | Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg |
| title_fullStr | Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg |
| title_full_unstemmed | Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg |
| title_short | Wetting behavior of Mo, Ta, and stainless steel substrates in contact with molten Mg |
| title_sort | wetting behavior of mo ta and stainless steel substrates in contact with molten mg |
| topic | Liquid Mg Molybdenum Tantalum Stainless steel Sessile drop method Contact angle |
| url | http://www.sciencedirect.com/science/article/pii/S2213956725000556 |
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