Co-clusters in Al alloys: alloy strengthening and thermodynamics
Co-clusters in Al alloys: alloy strengthening and thermodynamics
Detailed atom probe studies performed in the last 10 years on heat treatable aluminium alloys such as the Al-Cu-Mg type have revealed that rapid hardening and room temperature hardening is predominantly due to the formation of co-clusters. In this presentation a theory for the thermodynamics of these co-clusters in metallic alloys is presented. The model incorporates the basic dimer (2 atom) form of co-clusters as well as larger clusters. A model for the strengthening due to co-clusters is also derived. The model encompasses modulus hardening, chemical hardening and (short-) order strengthening. It is shown that in general (short-) order strengthening will be the main strengthening mechanism.
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Starink, M.J.
(2012)
Co-clusters in Al alloys: alloy strengthening and thermodynamics.
TMS 2012: Annual Meeting and Exhibition, Orlando, FL, United States.
11 - 15 Mar 2012.
Record type:
Conference or Workshop Item
(Other)
Abstract
Detailed atom probe studies performed in the last 10 years on heat treatable aluminium alloys such as the Al-Cu-Mg type have revealed that rapid hardening and room temperature hardening is predominantly due to the formation of co-clusters. In this presentation a theory for the thermodynamics of these co-clusters in metallic alloys is presented. The model incorporates the basic dimer (2 atom) form of co-clusters as well as larger clusters. A model for the strengthening due to co-clusters is also derived. The model encompasses modulus hardening, chemical hardening and (short-) order strengthening. It is shown that in general (short-) order strengthening will be the main strengthening mechanism.
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e-pub ahead of print date: March 2012
Venue - Dates:
TMS 2012: Annual Meeting and Exhibition, Orlando, FL, United States, 2012-03-11 - 2012-03-15
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 373357
URI: http://eprints.soton.ac.uk/id/eprint/373357
PURE UUID: 2aba311a-3948-4460-be9c-819eeded3634
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Date deposited: 15 Jan 2015 17:04
Last modified: 11 Dec 2021 05:52
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