Abstract
The microstructure, hardness, tensile properties and ballistic performance have been investigated in thick plates of the AA5754 alloy both in a coarse-grained as-received condition and after 4 passes of equal channel angular extrusion (ECAE) conducted at elevated temperatures. It is found that ECAE refines the microstructure to an average subgrain size of 0.3 μm, which results in significantly increased hardness and strength. Although ductility decreases due to ECAE, the uniform elongation is still fairly large, ~10%. The ballistic performance of the ECAE-processed material is found to be substantially better than that of the as-received condition.
| Original language | English |
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| Journal | Proceedings of the Risø International Symposium on Materials Science |
| Volume | 35 |
| Pages (from-to) | 389-395 |
| ISSN | 0907-0079 |
| Publication status | Published - 2014 |
| Event | 35th Risø International Symposium on Materials Science: New Frontiers of Nanometals - DTU, Risø Campus, Roskilde, Denmark Duration: 1 Sept 2014 → 5 Sept 2014 Conference number: 35 |
Conference
| Conference | 35th Risø International Symposium on Materials Science |
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| Number | 35 |
| Location | DTU, Risø Campus |
| Country/Territory | Denmark |
| City | Roskilde |
| Period | 01/09/2014 → 05/09/2014 |