Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation
The preparation of nanocrystalline aluminum (NC Al) was conducted in two steps. After the NC Al powder was synthesized by an Inert gas condensation (IGC) method in a helium atmosphere of 500 Pa, the NC Al powder was in-situ compacted into a pellet with a 10 mm diameter and 250 μm-300 μm thickness in...
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EDP Sciences
2019-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20197902002 |
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doaj-fbfcf7ab9cd74d4e84c4d8b5ed7b10cf2021-02-02T06:34:04ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01790200210.1051/e3sconf/20197902002e3sconf_arfee2018_02002Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensationWu ShangshuYu ZhouWang JunjieZhang HanxinPei ChaoqunFu ShuFu HaoMeng JiajieFeng TaoThe preparation of nanocrystalline aluminum (NC Al) was conducted in two steps. After the NC Al powder was synthesized by an Inert gas condensation (IGC) method in a helium atmosphere of 500 Pa, the NC Al powder was in-situ compacted into a pellet with a 10 mm diameter and 250 μm-300 μm thickness in a high vacuum (10-6 Pa-10-7 Pa) at room temperature. The NC Al samples were not exposed to air during the entire process. After the pressure reached 6 GPa, the relative density could reach 99.83%. The results showed that the grain size decreased with the increased of in-situ forming pressure. The NC Al samples present obvious ductile fracture, and the tensile properties were greatly changed with the increase of forming pressure.https://doi.org/10.1051/e3sconf/20197902002 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Wu Shangshu Yu Zhou Wang Junjie Zhang Hanxin Pei Chaoqun Fu Shu Fu Hao Meng Jiajie Feng Tao |
| spellingShingle |
Wu Shangshu Yu Zhou Wang Junjie Zhang Hanxin Pei Chaoqun Fu Shu Fu Hao Meng Jiajie Feng Tao Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation E3S Web of Conferences |
| author_facet |
Wu Shangshu Yu Zhou Wang Junjie Zhang Hanxin Pei Chaoqun Fu Shu Fu Hao Meng Jiajie Feng Tao |
| author_sort |
Wu Shangshu |
| title |
Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| title_short |
Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| title_full |
Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| title_fullStr |
Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| title_full_unstemmed |
Forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| title_sort |
forming pressure effect on microstructure and mechanical properties of nanocrystalline aluminum synthesized by inert gas condensation |
| publisher |
EDP Sciences |
| series |
E3S Web of Conferences |
| issn |
2267-1242 |
| publishDate |
2019-01-01 |
| description |
The preparation of nanocrystalline aluminum (NC Al) was conducted in two steps. After the NC Al powder was synthesized by an Inert gas condensation (IGC) method in a helium atmosphere of 500 Pa, the NC Al powder was in-situ compacted into a pellet with a 10 mm diameter and 250 μm-300 μm thickness in a high vacuum (10-6 Pa-10-7 Pa) at room temperature. The NC Al samples were not exposed to air during the entire process. After the pressure reached 6 GPa, the relative density could reach 99.83%. The results showed that the grain size decreased with the increased of in-situ forming pressure. The NC Al samples present obvious ductile fracture, and the tensile properties were greatly changed with the increase of forming pressure. |
| url |
https://doi.org/10.1051/e3sconf/20197902002 |
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