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http://bura.brunel.ac.uk/handle/2438/10064
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DC Field | Value | Language |
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dc.contributor.author | Yang, W | - |
dc.contributor.author | Ji, S | - |
dc.contributor.author | Huang, L | - |
dc.contributor.author | Sheng, X | - |
dc.contributor.author | Li, Z | - |
dc.contributor.author | Wang, M | - |
dc.date.accessioned | 2015-02-03T09:25:10Z | - |
dc.date.available | 2014 | - |
dc.date.available | 2015-02-03T09:25:10Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Materials Characterization, 94: 170 - 177, ( August 2014) | en_US |
dc.identifier.issn | 1044-5803 | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S1044580314001417 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/10064 | - |
dc.description.abstract | The characterization of precipitation and hardening mechanism during non-isothermal aging had been investigated using high resolution transmission electron microscopy for an Al-Mg-Si-Cu 6005A alloy. It was proposed that the needle-shaped β″ precipitates with a three-dimension coherency strain-field and an increased number density in the Al matrix provided the maximum strengthening effect for the Al-Mg-Si-Cu 6005A alloy. Simultaneously, it was also found that the formation and evolution of clusters in the early precipitation were associated with the vacancy binding energy, during which Si atoms played an important role in controlling the numbers density of Mg/Si co-clusters, and the excess Si atoms provided the increased number of nucleation sites for the subsequent precipitates to strengthen and improve the precipitation rate. Finally, based on the experimental observation and theoretical analysis, the precipitation sequence during the early precipitation in the Al-Mg-Si-Cu 6005A alloy was proposed as: supersaturated solid solution → Si-vacancy pairs, Mg-vacancy pairs and Mg clusters → Si clusters, and dissolution of Mg clusters → Mg atoms diffusion into the existing Si clusters → Mg/Si co-clusters → GP zone. © 2014 Elsevier Inc. | en_US |
dc.description.sponsorship | This work is supported by the Hunan Provincial Innovation Foundation for Postgraduate (CX2010B044), P. R. China, and the Graduate Degree Thesis Innovation Foundation of Central South University (2010ybfz024). | en_US |
dc.format.extent | 170 - 177 | - |
dc.format.extent | 170 - 177 | - |
dc.language | eng | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Inc. | en_US |
dc.subject | Age hardening | en_US |
dc.subject | Aluminum alloys | en_US |
dc.subject | Microstructure | en_US |
dc.subject | Precipitation sequence | en_US |
dc.subject | Transmission electron microscopy | en_US |
dc.title | Initial precipitation and hardening mechanism during non-isothermal aging in an Al-Mg-Si-Cu 6005A alloy | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/j.matchar.2014.05.007 | - |
dc.relation.isPartOf | Materials Characterization | - |
dc.relation.isPartOf | Materials Characterization | - |
pubs.volume | 94 | - |
pubs.volume | 94 | - |
pubs.organisational-data | /Brunel | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering/Mechanical and Aerospace Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing/Liquid Metal Engineering | - |
pubs.organisational-data | /Brunel/Specialist Centres | - |
pubs.organisational-data | /Brunel/Specialist Centres/BCAST | - |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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Fulltext.pdf | 1.75 MB | Adobe PDF | View/Open |
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