Towards electroformed nanostructured aluminum alloys with high strength and ductility
Nanostructured Al–Mn alloys are proposed as high-strength low-density materials, which can be electroformed (i.e., produced electrolytically and removed from the substrate) from ionic liquid. A variety of current waveforms, including direct current (DC) and pulsed current (PC), are used to electrode...
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| Format: | Article |
| Language: | en_US |
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Cambridge University Press (Materials Research Society)
2013
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| Online Access: | http://hdl.handle.net/1721.1/79781 https://orcid.org/0000-0001-9856-2682 |
| _version_ | 1826203087973384192 |
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| author | Ruan, Shiyun Schuh, Christopher A |
| author2 | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies |
| author_facet | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Ruan, Shiyun Schuh, Christopher A |
| author_sort | Ruan, Shiyun |
| collection | MIT |
| description | Nanostructured Al–Mn alloys are proposed as high-strength low-density materials, which can be electroformed (i.e., produced electrolytically and removed from the substrate) from ionic liquid. A variety of current waveforms, including direct current (DC) and pulsed current (PC), are used to electrodeposit nanostructured Al–Mn alloys, with some PC methods producing significant improvements in film ductility. Transmission electron microscopy observations point to a number of structural advantages induced by PC that apparently ductilize the Al–Mn alloys: (i) grain refinement to the nanocrystalline range without the introduction of a competing amorphous phase, (ii) unimodal nanocrystalline grain size distribution, and (iii) more homogeneous structure. The significant increase in apparent ductility in the PC alloys is also apparently related to stress- or deformation-induced grain growth, which leads to alloys with unique combinations of specific hardness and film ductility. |
| first_indexed | 2024-09-23T12:31:27Z |
| format | Article |
| id | mit-1721.1/79781 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:31:27Z |
| publishDate | 2013 |
| publisher | Cambridge University Press (Materials Research Society) |
| record_format | dspace |
| spelling | mit-1721.1/797812022-10-01T09:31:27Z Towards electroformed nanostructured aluminum alloys with high strength and ductility Ruan, Shiyun Schuh, Christopher A Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Materials Science and Engineering Ruan, Shiyun Schuh, Christopher A. Nanostructured Al–Mn alloys are proposed as high-strength low-density materials, which can be electroformed (i.e., produced electrolytically and removed from the substrate) from ionic liquid. A variety of current waveforms, including direct current (DC) and pulsed current (PC), are used to electrodeposit nanostructured Al–Mn alloys, with some PC methods producing significant improvements in film ductility. Transmission electron microscopy observations point to a number of structural advantages induced by PC that apparently ductilize the Al–Mn alloys: (i) grain refinement to the nanocrystalline range without the introduction of a competing amorphous phase, (ii) unimodal nanocrystalline grain size distribution, and (iii) more homogeneous structure. The significant increase in apparent ductility in the PC alloys is also apparently related to stress- or deformation-induced grain growth, which leads to alloys with unique combinations of specific hardness and film ductility. United States. Army Research Office (Contract W911NF-07-D-0004) (Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies) 2013-08-05T16:19:23Z 2013-08-05T16:19:23Z 2012-04 2011-12 Article http://purl.org/eprint/type/JournalArticle 0884-2914 2044-5326 http://hdl.handle.net/1721.1/79781 Ruan, Shiyun, and Christopher A. Schuh. “Towards electroformed nanostructured aluminum alloys with high strength and ductility.” Journal of Materials Research 27, no. 12 (June 24, 2012): 1638-1651. © Materials Research Society 2012 https://orcid.org/0000-0001-9856-2682 en_US http://dx.doi.org/10.1557/jmr.2012.105 Journal of Materials Research Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Cambridge University Press (Materials Research Society) MIT web domain |
| spellingShingle | Ruan, Shiyun Schuh, Christopher A Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title | Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title_full | Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title_fullStr | Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title_full_unstemmed | Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title_short | Towards electroformed nanostructured aluminum alloys with high strength and ductility |
| title_sort | towards electroformed nanostructured aluminum alloys with high strength and ductility |
| url | http://hdl.handle.net/1721.1/79781 https://orcid.org/0000-0001-9856-2682 |
| work_keys_str_mv | AT ruanshiyun towardselectroformednanostructuredaluminumalloyswithhighstrengthandductility AT schuhchristophera towardselectroformednanostructuredaluminumalloyswithhighstrengthandductility |