Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys
High-entropy alloys (HEAs) are multiprincipal element alloys with controllable properties. Studying the mechanical properties of these alloys and relating them to their microstructures is of interest. In the current investigation, Fe31Mn28 Ni15Al24.5Tix high-entropy alloys with Ti content (0–3 wt.%)...
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2157592 |
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| author | Shimaa El-Hadad Mervat Ibrahim Mohamed Mourad |
| author_facet | Shimaa El-Hadad Mervat Ibrahim Mohamed Mourad |
| author_sort | Shimaa El-Hadad |
| collection | DOAJ |
| description | High-entropy alloys (HEAs) are multiprincipal element alloys with controllable properties. Studying the mechanical properties of these alloys and relating them to their microstructures is of interest. In the current investigation, Fe31Mn28 Ni15Al24.5Tix high-entropy alloys with Ti content (0–3 wt.%) were prepared by casting in an induction furnace. Different heat treatments were applied, and the microstructure and hardness of the cast samples were studied. It was observed that addition of up to 3.0 wt.% Ti significantly increases the hardness of the alloy from 300 to 500 (Hv) by the combined effect of solid solution strengthening and via decreasing lamellar spacing. Heat treatment at 900°C for 10 h enhanced the hardness at lower Ti percentages (0.0–0.8 wt.%) by decreasing the lamellar spacing, while no change was observed at higher Ti content. It was also observed that extending the treatment time to 20 h affected negatively the hardness of the alloy. Concluding, HEAs can achieve high hardness using low-cost principle elements with minor alloying additives compared to the other traditional alloys. |
| format | Article |
| id | doaj-art-35a80bdd832a4a20bf57685c89fdb950 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-35a80bdd832a4a20bf57685c89fdb9502025-02-03T06:00:50ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/21575922157592Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy AlloysShimaa El-Hadad0Mervat Ibrahim1Mohamed Mourad2Central Metallurgical Research & Development Institute, P.O. Box 87, Helwan, EgyptCentral Metallurgical Research & Development Institute, P.O. Box 87, Helwan, EgyptCentral Metallurgical Research & Development Institute, P.O. Box 87, Helwan, EgyptHigh-entropy alloys (HEAs) are multiprincipal element alloys with controllable properties. Studying the mechanical properties of these alloys and relating them to their microstructures is of interest. In the current investigation, Fe31Mn28 Ni15Al24.5Tix high-entropy alloys with Ti content (0–3 wt.%) were prepared by casting in an induction furnace. Different heat treatments were applied, and the microstructure and hardness of the cast samples were studied. It was observed that addition of up to 3.0 wt.% Ti significantly increases the hardness of the alloy from 300 to 500 (Hv) by the combined effect of solid solution strengthening and via decreasing lamellar spacing. Heat treatment at 900°C for 10 h enhanced the hardness at lower Ti percentages (0.0–0.8 wt.%) by decreasing the lamellar spacing, while no change was observed at higher Ti content. It was also observed that extending the treatment time to 20 h affected negatively the hardness of the alloy. Concluding, HEAs can achieve high hardness using low-cost principle elements with minor alloying additives compared to the other traditional alloys.http://dx.doi.org/10.1155/2019/2157592 |
| spellingShingle | Shimaa El-Hadad Mervat Ibrahim Mohamed Mourad Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys Advances in Materials Science and Engineering |
| title | Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys |
| title_full | Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys |
| title_fullStr | Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys |
| title_full_unstemmed | Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys |
| title_short | Effect of Heat Treatment and Titanium Addition on the Microstructure and Mechanical Properties of Cast Fe31Mn28 Ni15Al24.5Tix High-Entropy Alloys |
| title_sort | effect of heat treatment and titanium addition on the microstructure and mechanical properties of cast fe31mn28 ni15al24 5tix high entropy alloys |
| url | http://dx.doi.org/10.1155/2019/2157592 |
| work_keys_str_mv | AT shimaaelhadad effectofheattreatmentandtitaniumadditiononthemicrostructureandmechanicalpropertiesofcastfe31mn28ni15al245tixhighentropyalloys AT mervatibrahim effectofheattreatmentandtitaniumadditiononthemicrostructureandmechanicalpropertiesofcastfe31mn28ni15al245tixhighentropyalloys AT mohamedmourad effectofheattreatmentandtitaniumadditiononthemicrostructureandmechanicalpropertiesofcastfe31mn28ni15al245tixhighentropyalloys |