Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling
A 20 gram batch weight of NiTi alloy, with a nominal equiatomic composition, was produced by mechanical alloying with milling times of 100, 120, and 140 hours. The differential scanning calorimetry was used to analyze the progress of the crystallization process. The X-ray diffraction examined the cr...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2023-09-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/128454/PDF/AMM-2023-3-39-Goryczka.pdf |
| _version_ | 1827815134000578560 |
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| author | T. Goryczka G. Dercz |
| author_facet | T. Goryczka G. Dercz |
| author_sort | T. Goryczka |
| collection | DOAJ |
| description | A 20 gram batch weight of NiTi alloy, with a nominal equiatomic composition, was produced by mechanical alloying with milling times of 100, 120, and 140 hours. The differential scanning calorimetry was used to analyze the progress of the crystallization process. The X-ray diffraction examined the crystal structure of the alloy at individual crystallization stages. The observation of the powders microstructure and the chemical composition measurement were carried out using a scanning electron microscope equipped with an energy-dispersive detector. After the milling process, the alloy revealed an amorphous-nanocrystalline state. The course of the crystallization process was multi-stage and proceeded at a lower temperature than the pure amorphous state. The applied production parameters and the stage heat treatment allowed to obtain the alloy showing the reversible martensitic transformation with an enthalpy of almost 5 J/g. |
| first_indexed | 2024-03-11T23:55:43Z |
| format | Article |
| id | doaj.art-1b27bea6388a4706b7fed8f7e99acc18 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-03-11T23:55:43Z |
| publishDate | 2023-09-01 |
| publisher | Polish Academy of Sciences |
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| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-1b27bea6388a4706b7fed8f7e99acc182023-09-18T11:14:42ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092023-09-01vol. 68No 311271135https://doi.org/10.24425/amm.2023.145484Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball MillingT. Goryczka0https://orcid.org/0000-0002-6405-2825G. Dercz1https://orcid.org/0000-0003-3682-7184University of Silesia in Katowice, Institute of Materials Science, 75 Pułku Piechoty 1A Str., 41-500 Chorzow, PolandUniversity of Silesia in Katowice, Institute of Materials Science, 75 Pułku Piechoty 1A Str., 41-500 Chorzow, PolandA 20 gram batch weight of NiTi alloy, with a nominal equiatomic composition, was produced by mechanical alloying with milling times of 100, 120, and 140 hours. The differential scanning calorimetry was used to analyze the progress of the crystallization process. The X-ray diffraction examined the crystal structure of the alloy at individual crystallization stages. The observation of the powders microstructure and the chemical composition measurement were carried out using a scanning electron microscope equipped with an energy-dispersive detector. After the milling process, the alloy revealed an amorphous-nanocrystalline state. The course of the crystallization process was multi-stage and proceeded at a lower temperature than the pure amorphous state. The applied production parameters and the stage heat treatment allowed to obtain the alloy showing the reversible martensitic transformation with an enthalpy of almost 5 J/g.https://journals.pan.pl/Content/128454/PDF/AMM-2023-3-39-Goryczka.pdfniti alloymechanical alloyingmilling conditionscrystallization |
| spellingShingle | T. Goryczka G. Dercz Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling Archives of Metallurgy and Materials niti alloy mechanical alloying milling conditions crystallization |
| title | Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling |
| title_full | Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling |
| title_fullStr | Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling |
| title_full_unstemmed | Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling |
| title_short | Effect of Milling Time on Crystallization Sequence and Microstructure of NiTi Alloys Produced Via High-Energy Ball Milling |
| title_sort | effect of milling time on crystallization sequence and microstructure of niti alloys produced via high energy ball milling |
| topic | niti alloy mechanical alloying milling conditions crystallization |
| url | https://journals.pan.pl/Content/128454/PDF/AMM-2023-3-39-Goryczka.pdf |
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