Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy
The hardness, conductivity and room temperature tensile test were used to study the properties of the new aluminum alloy aged at 110-140 ℃ for different time.The microstructure of the alloy was observed by transmission microscope (TEM).The results show that the optimum aging process of the new alumi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2021-04-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000241 |
| _version_ | 1797972448639975424 |
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| author | ZANG Jin-xin XING Qing-yuan CHEN Jun-zhou DAI Sheng-long |
| author_facet | ZANG Jin-xin XING Qing-yuan CHEN Jun-zhou DAI Sheng-long |
| author_sort | ZANG Jin-xin |
| collection | DOAJ |
| description | The hardness, conductivity and room temperature tensile test were used to study the properties of the new aluminum alloy aged at 110-140 ℃ for different time.The microstructure of the alloy was observed by transmission microscope (TEM).The results show that the optimum aging process of the new aluminum alloy is aging at 110 ℃ for 24 h.Tensile strength, yield strength and elongation are 808,785 MPa,6.9%, respectively.Aging temperature is the main factor affecting the type, density and size of precipitates.When aged at 110 ℃,the main precipitations are GPⅠ zones,GPⅡ zones and metastable η' phase. After aging at 110 ℃ for a long time (up to 96 h), GPⅠ zones and GPⅡ zones still exist stably.Compared with aging at 110 ℃, the precipitation process accelerates at 140 ℃.After aging at 140 ℃ for 4 h, no GP zone is observed, and the main precipitate phase is η'.After aging at 140 ℃ for 24 h, the main precipitates are η' phase and η phase. |
| first_indexed | 2024-04-11T03:47:34Z |
| format | Article |
| id | doaj.art-622019ac4f884100919d6c8d25b178d1 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T03:47:34Z |
| publishDate | 2021-04-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-622019ac4f884100919d6c8d25b178d12023-01-02T02:21:53ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812021-04-01494717710.11868/j.issn.1001-4381.2021.00024120210407Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloyZANG Jin-xin0XING Qing-yuan1CHEN Jun-zhou2DAI Sheng-long3AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaThe hardness, conductivity and room temperature tensile test were used to study the properties of the new aluminum alloy aged at 110-140 ℃ for different time.The microstructure of the alloy was observed by transmission microscope (TEM).The results show that the optimum aging process of the new aluminum alloy is aging at 110 ℃ for 24 h.Tensile strength, yield strength and elongation are 808,785 MPa,6.9%, respectively.Aging temperature is the main factor affecting the type, density and size of precipitates.When aged at 110 ℃,the main precipitations are GPⅠ zones,GPⅡ zones and metastable η' phase. After aging at 110 ℃ for a long time (up to 96 h), GPⅠ zones and GPⅡ zones still exist stably.Compared with aging at 110 ℃, the precipitation process accelerates at 140 ℃.After aging at 140 ℃ for 4 h, no GP zone is observed, and the main precipitate phase is η'.After aging at 140 ℃ for 24 h, the main precipitates are η' phase and η phase.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000241the 5th generation aluminum alloyultra high strength aluminum alloy800 mpaaging treatmentmicrostructure |
| spellingShingle | ZANG Jin-xin XING Qing-yuan CHEN Jun-zhou DAI Sheng-long Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy Cailiao gongcheng the 5th generation aluminum alloy ultra high strength aluminum alloy 800 mpa aging treatment microstructure |
| title | Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy |
| title_full | Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy |
| title_fullStr | Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy |
| title_full_unstemmed | Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy |
| title_short | Aging precipitation behavior of 800 MPa grade ultra high strength aluminum alloy |
| title_sort | aging precipitation behavior of 800 mpa grade ultra high strength aluminum alloy |
| topic | the 5th generation aluminum alloy ultra high strength aluminum alloy 800 mpa aging treatment microstructure |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000241 |
| work_keys_str_mv | AT zangjinxin agingprecipitationbehaviorof800mpagradeultrahighstrengthaluminumalloy AT xingqingyuan agingprecipitationbehaviorof800mpagradeultrahighstrengthaluminumalloy AT chenjunzhou agingprecipitationbehaviorof800mpagradeultrahighstrengthaluminumalloy AT daishenglong agingprecipitationbehaviorof800mpagradeultrahighstrengthaluminumalloy |