Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy
This paper aims at establishing microstructure/property/processing correlations in a thermomechanically processed ultralight Mg-3.5Li-1Al (wt%) alloy. The thermomechanical cycle consists of uniaxial compression at temperatures of 250 °C, 350 °C, and 450 °C and strain rates of 1, 0.1, 0.01, and 0.001...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2019-09-01
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| Series: | International Journal of Lightweight Materials and Manufacture |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588840419300034 |
| _version_ | 1811326306594324480 |
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| author | Rezawana Islam Amir Hadadzadeh Marry Wells Meysam Haghshenas |
| author_facet | Rezawana Islam Amir Hadadzadeh Marry Wells Meysam Haghshenas |
| author_sort | Rezawana Islam |
| collection | DOAJ |
| description | This paper aims at establishing microstructure/property/processing correlations in a thermomechanically processed ultralight Mg-3.5Li-1Al (wt%) alloy. The thermomechanical cycle consists of uniaxial compression at temperatures of 250 °C, 350 °C, and 450 °C and strain rates of 1, 0.1, 0.01, and 0.001/s using a Gleeble® 3500 thermal-mechanical simulation testing system. Upon testing, the samples were quenched, sectioned, and perfectly polished to run nanoindentation tests. The nanoindentation tests were performed to study post-treatment mechanical properties and related phenomena (i.e. Portevin–Le Chatelier effect) at different conditions in the processed samples. Microstructural changes, hot compression stress-strain curves, and nanoindentation load/displacement response are discussed in detail in the present research. The correlations between flow stress, strain rate, and deformation temperature were assessed. Besides, using the Zener-Hollomon parameter, the effects of thermomechanical parameters (temperature and strain rate) on deformation response were analyzed. Keywords: Thermomechanical processing, Mg-3.5Li-1Al alloy, Nanoindentation, Microstructure, Portevin–Le Chatelier effect, Zener-Hollomon parameter |
| first_indexed | 2024-04-13T14:47:38Z |
| format | Article |
| id | doaj.art-1000352959904cfca83a646df294cc6b |
| institution | Directory Open Access Journal |
| issn | 2588-8404 |
| language | English |
| last_indexed | 2024-04-13T14:47:38Z |
| publishDate | 2019-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Lightweight Materials and Manufacture |
| spelling | doaj.art-1000352959904cfca83a646df294cc6b2022-12-22T02:42:41ZengKeAi Communications Co., Ltd.International Journal of Lightweight Materials and Manufacture2588-84042019-09-0123217226Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloyRezawana Islam0Amir Hadadzadeh1Marry Wells2Meysam Haghshenas3Department of Mechanical Engineering, University of North Dakota, Grand Forks, USAMarine Additive Manufacturing Centre of Excellence, University of New Brunswick, Fredericton, CanadaCollege of Engineering and Physical Sciences, University of Guelph, Guelph, CanadaDepartment of Mechanical Engineering, University of North Dakota, Grand Forks, USA; Corresponding author.This paper aims at establishing microstructure/property/processing correlations in a thermomechanically processed ultralight Mg-3.5Li-1Al (wt%) alloy. The thermomechanical cycle consists of uniaxial compression at temperatures of 250 °C, 350 °C, and 450 °C and strain rates of 1, 0.1, 0.01, and 0.001/s using a Gleeble® 3500 thermal-mechanical simulation testing system. Upon testing, the samples were quenched, sectioned, and perfectly polished to run nanoindentation tests. The nanoindentation tests were performed to study post-treatment mechanical properties and related phenomena (i.e. Portevin–Le Chatelier effect) at different conditions in the processed samples. Microstructural changes, hot compression stress-strain curves, and nanoindentation load/displacement response are discussed in detail in the present research. The correlations between flow stress, strain rate, and deformation temperature were assessed. Besides, using the Zener-Hollomon parameter, the effects of thermomechanical parameters (temperature and strain rate) on deformation response were analyzed. Keywords: Thermomechanical processing, Mg-3.5Li-1Al alloy, Nanoindentation, Microstructure, Portevin–Le Chatelier effect, Zener-Hollomon parameterhttp://www.sciencedirect.com/science/article/pii/S2588840419300034 |
| spellingShingle | Rezawana Islam Amir Hadadzadeh Marry Wells Meysam Haghshenas Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy International Journal of Lightweight Materials and Manufacture |
| title | Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy |
| title_full | Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy |
| title_fullStr | Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy |
| title_full_unstemmed | Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy |
| title_short | Characterization and analysis of hot compression behaviors of an ultralight Mg-Li-Al alloy |
| title_sort | characterization and analysis of hot compression behaviors of an ultralight mg li al alloy |
| url | http://www.sciencedirect.com/science/article/pii/S2588840419300034 |
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