Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications

Marco Colombo; Elisabetta Gariboldi; Paola Bassani; Mihaela Albu; Ferdinand Hofer

doi:10.4028/www.scientific.net/MSF.879.380

Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications

Marco Colombo^*, Elisabetta Gariboldi, Paola Bassani, Mihaela Albu, Ferdinand Hofer

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

The mechanical properties of Al alloys are strongly affected by their microstructure: the size and shape of precipitates, their homogeneous distribution and their coherency with the matrix are of primary importance for an effective strengthening of the alloys at room and elevated temperatures. Physically-based models are powerful tools to predict the influence of the mentioned parameters on the mechanical properties of the alloy after age hardening, and also to predict the effect of high temperature service conditions on microstructure evolution. Scope of this work is to model the dimensional kinetic evolution of plate shaped precipitates of an Al-based alloy during aging and after different overaging times at elevated temperature, and use these results to estimate the alloy yield strength. The alloy strengthening response is due to three terms, linearly summed: the intrinsic strength of Aluminum, the contribution from solute in solid solution and the contribution arising from precipitates. The consistency of the model is verified with experimental data obtained from a 2014 Al alloy.

Original language	English
Title of host publication	THERMEC 2016
Editors	Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra
Publisher	Trans Tech Publications Ltd.
Pages	380-385
Number of pages	6
ISBN (Print)	9783035711295
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.879.380
Publication status	Published - 2017
Event	9th International Conference on Processing and Manufacturing of Advanced Materials: Thermec 2016 - Stadthalle Graz, Graz, Austria Duration: 29 May 2016 → 3 Jun 2016 https://www.tugraz.at/events/thermec-2016/home/

Publication series

Name	Materials Science Forum
Volume	879
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	9th International Conference on Processing and Manufacturing of Advanced Materials
Abbreviated title	THERMEC 2016
Country/Territory	Austria
City	Graz
Period	29/05/16 → 3/06/16
Internet address	https://www.tugraz.at/events/thermec-2016/home/

Keywords

Aluminum alloys
High temperature
Mechanical properties
Simulation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/MSF.879.380

Cite this

Colombo, M., Gariboldi, E., Bassani, P., Albu, M., & Hofer, F. (2017). Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications. In C. Sommitsch, M. Ionescu, B. Mishra, B. Mishra, E. Kozeschnik, & T. Chandra (Eds.), THERMEC 2016 (pp. 380-385). (Materials Science Forum; Vol. 879). Trans Tech Publications Ltd.. https://doi.org/10.4028/www.scientific.net/MSF.879.380

Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications. / Colombo, Marco; Gariboldi, Elisabetta; Bassani, Paola et al.
THERMEC 2016. ed. / Christof Sommitsch; Mihail Ionescu; Brajendra Mishra; Brajendra Mishra; Ernst Kozeschnik; T. Chandra. Trans Tech Publications Ltd., 2017. p. 380-385 (Materials Science Forum; Vol. 879).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Colombo, M, Gariboldi, E, Bassani, P, Albu, M & Hofer, F 2017, Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications. in C Sommitsch, M Ionescu, B Mishra, B Mishra, E Kozeschnik & T Chandra (eds), THERMEC 2016. Materials Science Forum, vol. 879, Trans Tech Publications Ltd., pp. 380-385, 9th International Conference on Processing and Manufacturing of Advanced Materials, Graz, Austria, 29/05/16. https://doi.org/10.4028/www.scientific.net/MSF.879.380

Colombo M, Gariboldi E, Bassani P, Albu M, Hofer F. Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications. In Sommitsch C, Ionescu M, Mishra B, Mishra B, Kozeschnik E, Chandra T, editors, THERMEC 2016. Trans Tech Publications Ltd. 2017. p. 380-385. (Materials Science Forum). doi: 10.4028/www.scientific.net/MSF.879.380

Colombo, Marco ; Gariboldi, Elisabetta ; Bassani, Paola et al. / Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications. THERMEC 2016. editor / Christof Sommitsch ; Mihail Ionescu ; Brajendra Mishra ; Brajendra Mishra ; Ernst Kozeschnik ; T. Chandra. Trans Tech Publications Ltd., 2017. pp. 380-385 (Materials Science Forum).

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AU - Hofer, Ferdinand

PY - 2017

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N2 - The mechanical properties of Al alloys are strongly affected by their microstructure: the size and shape of precipitates, their homogeneous distribution and their coherency with the matrix are of primary importance for an effective strengthening of the alloys at room and elevated temperatures. Physically-based models are powerful tools to predict the influence of the mentioned parameters on the mechanical properties of the alloy after age hardening, and also to predict the effect of high temperature service conditions on microstructure evolution. Scope of this work is to model the dimensional kinetic evolution of plate shaped precipitates of an Al-based alloy during aging and after different overaging times at elevated temperature, and use these results to estimate the alloy yield strength. The alloy strengthening response is due to three terms, linearly summed: the intrinsic strength of Aluminum, the contribution from solute in solid solution and the contribution arising from precipitates. The consistency of the model is verified with experimental data obtained from a 2014 Al alloy.

AB - The mechanical properties of Al alloys are strongly affected by their microstructure: the size and shape of precipitates, their homogeneous distribution and their coherency with the matrix are of primary importance for an effective strengthening of the alloys at room and elevated temperatures. Physically-based models are powerful tools to predict the influence of the mentioned parameters on the mechanical properties of the alloy after age hardening, and also to predict the effect of high temperature service conditions on microstructure evolution. Scope of this work is to model the dimensional kinetic evolution of plate shaped precipitates of an Al-based alloy during aging and after different overaging times at elevated temperature, and use these results to estimate the alloy yield strength. The alloy strengthening response is due to three terms, linearly summed: the intrinsic strength of Aluminum, the contribution from solute in solid solution and the contribution arising from precipitates. The consistency of the model is verified with experimental data obtained from a 2014 Al alloy.

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Modeling the microstructural and yield strength evolution of an age-hardenable Al alloy for high temperature applications

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