Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот
Due to unique physical and mechanical properties of quasicrystals, the Al – Cu – Fe and Al – Ni – Fe alloys can be applied as coatings for parts working under friction, abrasive wear etc. During the performance most of the coatings are affected by corrosion which makes it necessary to study their be...
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| Дата: | 2018 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Українська |
| Опубліковано: |
Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine
2018
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| Онлайн доступ: | https://momjournal.org.ua/index.php/mom/article/view/2018-4-3 |
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| Назва журналу: | Metal Science and Treatment of Metals |
Репозитарії
Metal Science and Treatment of Metals| _version_ | 1856543755198267392 |
|---|---|
| author | Sukhova, O. V. Polonskyy, V. A. Ustinova, K. V. Berun, M. V. |
| author_facet | Sukhova, O. V. Polonskyy, V. A. Ustinova, K. V. Berun, M. V. |
| author_sort | Sukhova, O. V. |
| baseUrl_str | |
| collection | OJS |
| datestamp_date | 2023-09-04T10:33:27Z |
| description | Due to unique physical and mechanical properties of quasicrystals, the Al – Cu – Fe and Al – Ni – Fe alloys can be applied as coatings for parts working under friction, abrasive wear etc. During the performance most of the coatings are affected by corrosion which makes it necessary to study their behavior in acidic solutions. Structure of the Al – Cu – Fe and Al – Ni – Fe alloys has been investigated by methods of quantitative metallographic, X-ray fluorescent, X-ray analyses. Corrosion behavior of the alloys has been explored at 20±2 °С by gravimetric method in HCl, H2SO4, HNO3, H3PO4 acidic solutions (pH=1.0) during 1 – 4 hours. pH of corrosion media has been controlled by ionometer EB–74. The samples surface exposed to acidic solutions has been investigated by scanning electron microscopy. The structure of the Al63Cu25Fe12, Al72Fe15Ni13 and Al71.6Ni23Fe5.4 alloys constituted of quasicrystalline phases differing in type, respectively icosahedral γ-phase and decagonal D-phase, has been investigated. After 4 testing hours, the maximal mass loss of the Al63Cu25Fe12 alloy has been established to occur in sulphuric acid and minimal mass loss – in ortophosphoric acid. For the Al72Fe15Ni13 alloy, maximal mass loss is observed in sulphuric acidic solution and for the Al72Fe15Ni13 alloy – in ortophosphoric acidic solution. Both the alloys do not practically corrode in hydrochloric and nitric acids. The Al – Ni – Fe alloys show higher resistance to corrosion compared with that of the Al – Cu – Fe alloy. The surface of the Al – Ni – Fe alloys dissolves in acidic media more homogeneously as against the surface of the Al – Cu – Fe alloy. The corrosion behavior of the quasicrystal Al – Cu – Fe and Al – Ni – Fe alloys has been compared in HCl, H2SO4, HNO3, H3PO4acidic solutions with the same pH=1.0. The mass loss per unit area of the samples versus alloy composition and corrosion time in acidic solutions has been determined. The results of corrosion tests have been explained considering the investigations of surface structure change of the samples exposed to acidic solutions. The Al71,6Ni23Fe5,4 alloy that shows the highest resistance to corrosion in acidic solutions has been recommended as coating to protect surface of aerospace parts working in acidic media. |
| first_indexed | 2025-09-24T17:41:08Z |
| format | Article |
| id | oai:ojs2.localhost:article-231 |
| institution | Metal Science and Treatment of Metals |
| language | Ukrainian |
| last_indexed | 2025-12-17T12:07:38Z |
| publishDate | 2018 |
| publisher | Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine |
| record_format | ojs |
| spelling | oai:ojs2.localhost:article-2312023-09-04T10:33:27Z Corrosion behaviour of quasicrystal Al – Cu – Fe and Al – Ni – Fe alloys in acidic solutions Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот Sukhova, O. V. Polonskyy, V. A. Ustinova, K. V. Berun, M. V. Due to unique physical and mechanical properties of quasicrystals, the Al – Cu – Fe and Al – Ni – Fe alloys can be applied as coatings for parts working under friction, abrasive wear etc. During the performance most of the coatings are affected by corrosion which makes it necessary to study their behavior in acidic solutions. Structure of the Al – Cu – Fe and Al – Ni – Fe alloys has been investigated by methods of quantitative metallographic, X-ray fluorescent, X-ray analyses. Corrosion behavior of the alloys has been explored at 20±2 °С by gravimetric method in HCl, H2SO4, HNO3, H3PO4 acidic solutions (pH=1.0) during 1 – 4 hours. pH of corrosion media has been controlled by ionometer EB–74. The samples surface exposed to acidic solutions has been investigated by scanning electron microscopy. The structure of the Al63Cu25Fe12, Al72Fe15Ni13 and Al71.6Ni23Fe5.4 alloys constituted of quasicrystalline phases differing in type, respectively icosahedral γ-phase and decagonal D-phase, has been investigated. After 4 testing hours, the maximal mass loss of the Al63Cu25Fe12 alloy has been established to occur in sulphuric acid and minimal mass loss – in ortophosphoric acid. For the Al72Fe15Ni13 alloy, maximal mass loss is observed in sulphuric acidic solution and for the Al72Fe15Ni13 alloy – in ortophosphoric acidic solution. Both the alloys do not practically corrode in hydrochloric and nitric acids. The Al – Ni – Fe alloys show higher resistance to corrosion compared with that of the Al – Cu – Fe alloy. The surface of the Al – Ni – Fe alloys dissolves in acidic media more homogeneously as against the surface of the Al – Cu – Fe alloy. The corrosion behavior of the quasicrystal Al – Cu – Fe and Al – Ni – Fe alloys has been compared in HCl, H2SO4, HNO3, H3PO4acidic solutions with the same pH=1.0. The mass loss per unit area of the samples versus alloy composition and corrosion time in acidic solutions has been determined. The results of corrosion tests have been explained considering the investigations of surface structure change of the samples exposed to acidic solutions. The Al71,6Ni23Fe5,4 alloy that shows the highest resistance to corrosion in acidic solutions has been recommended as coating to protect surface of aerospace parts working in acidic media. Досліджено структуру сплавів Al63Cu25Fe12, Al72Fe15Ni13 та Al71,6Ni23Fe5,4, в якихутворюються різні за типом квазікристалічні фази, відповідно ікосаедрична y-фаза та декагональна D-фаза. Встановлено, що після 4-х годин корозійних випробувань максимальна втрата маси сплаву Al63Cu25Fe12 спостерігається в сульфатній кислоті, а мінімальна – в ортофосфатній. Для сплаву Al72Fe15Ni13 максимальна втрата маси фіксується в розчині сульфатної кислоти, а для сплаву Al72Fe15Ni13 – в розчині ортофосфатної кислоти. Обидва сплави практично не взаємодіють з хлоридною та нітратною кислотами. Сплави Al – Ni – Fe характеризуються більшим опором корозії, ніж сплав Al – Cu – Fe. Результати корозійних випробувань пояснено на основі дослідження зміни структури поверхні після дії кислот. Сплав Al71,6Ni23Fe5,4, що показав найбільшу корозійну стійкість, рекомендовано для отримання захисних покриттів на поверхні деталей ракетно-космічного комплексу. Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine 2018-12-30 Article Article application/pdf https://momjournal.org.ua/index.php/mom/article/view/2018-4-3 10.15407/mom2018.04.019 Scientific Technical Journal; Vol. 24 No. 4 (2018): The Scientific Technical journal Metal Science and Treatment of Metals; 19-26 Науково-технічний журнал; Том 24 № 4 (2018): Науково-технічний журнал Металознавство та обробка металів; 19-26 2664-2441 2073-9583 10.15407/mom2018.04 uk https://momjournal.org.ua/index.php/mom/article/view/2018-4-3/2018-4-3 Copyright (c) 2023 Scientific Technical Journal https://creativecommons.org/licenses/by-nc-nd/4.0 |
| spellingShingle | Sukhova, O. V. Polonskyy, V. A. Ustinova, K. V. Berun, M. V. Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title | Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title_alt | Corrosion behaviour of quasicrystal Al – Cu – Fe and Al – Ni – Fe alloys in acidic solutions |
| title_full | Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title_fullStr | Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title_full_unstemmed | Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title_short | Корозійна поведінка квазікристалічних сплавів Al – Cu – Fe та Al – Ni – Fe у розчинах кислот |
| title_sort | корозійна поведінка квазікристалічних сплавів al – cu – fe та al – ni – fe у розчинах кислот |
| url | https://momjournal.org.ua/index.php/mom/article/view/2018-4-3 |
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