Influence of hydrogen on crystallization of cast magnesium alloys
It is shown that hydrogen is a demodifying element of the structure of cast magnesium alloys during their crystallization. Hydrogen atoms, adsorbing on elementary nanocrystals in melts, prevent the combination of nanocrystals into the nucleus of crystallization of α‑phase microcrystals. As a result,...
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| Format: | Article |
| Language: | English |
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Belarusian National Technical University
2023-03-01
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| Series: | Литьë и металлургия |
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| Online Access: | https://lim.bntu.by/jour/article/view/3541 |
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| author | E. I. Marukovich V. Yu. Stetsenko A. V. Stetsenko |
| author_facet | E. I. Marukovich V. Yu. Stetsenko A. V. Stetsenko |
| author_sort | E. I. Marukovich |
| collection | DOAJ |
| description | It is shown that hydrogen is a demodifying element of the structure of cast magnesium alloys during their crystallization. Hydrogen atoms, adsorbing on elementary nanocrystals in melts, prevent the combination of nanocrystals into the nucleus of crystallization of α‑phase microcrystals. As a result, molds with an unmodified structure are formed. Modifiers reduce the concentration of adsorbed hydrogen in the melts of magnesium alloys. This results in the milling of α‑phase microcrystals in castings as they solidify. |
| format | Article |
| id | doaj-art-9169f4bc50c148a08c66491bfef4fdf9 |
| institution | Kabale University |
| issn | 1683-6065 2414-0406 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Литьë и металлургия |
| spelling | doaj-art-9169f4bc50c148a08c66491bfef4fdf92025-08-20T03:37:50ZengBelarusian National Technical UniversityЛитьë и металлургия1683-60652414-04062023-03-0101586110.21122/1683-6065-2023-1-58-613420Influence of hydrogen on crystallization of cast magnesium alloysE. I. Marukovich0V. Yu. Stetsenko1A. V. Stetsenko2Association of Foundrymen and Metallurgists of BelarusAssociation of Foundrymen and Metallurgists of BelarusBelarusian‑Russian UniversityIt is shown that hydrogen is a demodifying element of the structure of cast magnesium alloys during their crystallization. Hydrogen atoms, adsorbing on elementary nanocrystals in melts, prevent the combination of nanocrystals into the nucleus of crystallization of α‑phase microcrystals. As a result, molds with an unmodified structure are formed. Modifiers reduce the concentration of adsorbed hydrogen in the melts of magnesium alloys. This results in the milling of α‑phase microcrystals in castings as they solidify.https://lim.bntu.by/jour/article/view/3541magnesium alloysmeltcastingsadsorptionhydrogencrystallizationnanocrystalsstructure |
| spellingShingle | E. I. Marukovich V. Yu. Stetsenko A. V. Stetsenko Influence of hydrogen on crystallization of cast magnesium alloys Литьë и металлургия magnesium alloys melt castings adsorption hydrogen crystallization nanocrystals structure |
| title | Influence of hydrogen on crystallization of cast magnesium alloys |
| title_full | Influence of hydrogen on crystallization of cast magnesium alloys |
| title_fullStr | Influence of hydrogen on crystallization of cast magnesium alloys |
| title_full_unstemmed | Influence of hydrogen on crystallization of cast magnesium alloys |
| title_short | Influence of hydrogen on crystallization of cast magnesium alloys |
| title_sort | influence of hydrogen on crystallization of cast magnesium alloys |
| topic | magnesium alloys melt castings adsorption hydrogen crystallization nanocrystals structure |
| url | https://lim.bntu.by/jour/article/view/3541 |
| work_keys_str_mv | AT eimarukovich influenceofhydrogenoncrystallizationofcastmagnesiumalloys AT vyustetsenko influenceofhydrogenoncrystallizationofcastmagnesiumalloys AT avstetsenko influenceofhydrogenoncrystallizationofcastmagnesiumalloys |