The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy
This study investigates the effects of grain boundary structures on mechanical properties of nanocrystalline Al-0.7Mg-1.0Cu alloy using nanoindentation system. Grain boundary structure transforms to high angle grain boundaries from low angle ones with increase of heat treatment temperature and the t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2021-12-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/119281/PDF/AMM-2021-4-10-Wonsik%20Lee.pdf |
| _version_ | 1828152703500419072 |
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| author | Jin Man Jang Wonsik Lee Se-Hyun Ko |
| author_facet | Jin Man Jang Wonsik Lee Se-Hyun Ko |
| author_sort | Jin Man Jang |
| collection | DOAJ |
| description | This study investigates the effects of grain boundary structures on mechanical properties of nanocrystalline Al-0.7Mg-1.0Cu alloy using nanoindentation system. Grain boundary structure transforms to high angle grain boundaries from low angle ones with increase of heat treatment temperature and the transformation temperature is about 400℃. Young’s modulus and hardness are higher in sample with low angle grain boundaries, while creep length is larger in sample with high angle ones. These results indicate that progress of plastic deformation at room temperature is more difficult in sample with low angle ones. During compression test at 200℃, strain softening occurs in all samples. However, yield strength in sample with low angle grain boundaries is higher twice than that with high angle ones due to higher activation energy for grain boundary sliding. |
| first_indexed | 2024-04-11T22:15:03Z |
| format | Article |
| id | doaj.art-f94e16983ae84fad91c5489bbd030f7f |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-11T22:15:03Z |
| publishDate | 2021-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-f94e16983ae84fad91c5489bbd030f7f2022-12-22T04:00:27ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092021-12-01vol. 66No 4971975https://doi.org/10.24425/amm.2021.136408The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al AlloyJin Man Jang0https://orcid.org/0000-0002-0574-2711Wonsik Lee1https://orcid.org/0000-0003-1358-4300Se-Hyun Ko2https://orcid.org/0000-0001-9886-9078Korea Institute of Industrial Technology, Incheon, 21999, Republic of KoreaKorea Institute of Industrial Technology, Incheon, 21999, Republic of KoreaKorea Institute of Industrial Technology, Incheon, 21999, Republic of KoreaThis study investigates the effects of grain boundary structures on mechanical properties of nanocrystalline Al-0.7Mg-1.0Cu alloy using nanoindentation system. Grain boundary structure transforms to high angle grain boundaries from low angle ones with increase of heat treatment temperature and the transformation temperature is about 400℃. Young’s modulus and hardness are higher in sample with low angle grain boundaries, while creep length is larger in sample with high angle ones. These results indicate that progress of plastic deformation at room temperature is more difficult in sample with low angle ones. During compression test at 200℃, strain softening occurs in all samples. However, yield strength in sample with low angle grain boundaries is higher twice than that with high angle ones due to higher activation energy for grain boundary sliding.https://journals.pan.pl/Content/119281/PDF/AMM-2021-4-10-Wonsik%20Lee.pdfnanocrystalline al alloyyoung’s modulushardnessnanoindentationlow and high angle grain boundary |
| spellingShingle | Jin Man Jang Wonsik Lee Se-Hyun Ko The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy Archives of Metallurgy and Materials nanocrystalline al alloy young’s modulus hardness nanoindentation low and high angle grain boundary |
| title | The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy |
| title_full | The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy |
| title_fullStr | The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy |
| title_full_unstemmed | The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy |
| title_short | The Effects of Grain Boundary Structures on Mechanical Properties in Nanocrystalline Al Alloy |
| title_sort | effects of grain boundary structures on mechanical properties in nanocrystalline al alloy |
| topic | nanocrystalline al alloy young’s modulus hardness nanoindentation low and high angle grain boundary |
| url | https://journals.pan.pl/Content/119281/PDF/AMM-2021-4-10-Wonsik%20Lee.pdf |
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