TY - GEN
T1 - Dynamic interactions between precipitation and plastic deformation in aluminium alloys
AU - Deschamps, Alexis
AU - De Geuser, Frédéric
AU - Hutchinson, Christopher R.
AU - Lee, Seung Won
AU - Horita, Zen Ji
PY - 2014
Y1 - 2014
N2 - Dynamic interactions between plastic deformation and precipitation processes in Aluminium alloys can lead to large changes in precipitation kinetics as compared to conventional heat treatments. This can be due to a number of different mechanisms such as changes in vacancy concentrations or movement of structural defects. Understanding the underlying mechanisms requires a quantitative measurement of the precipitate evolution as a function of deformation conditions, temperature and time. The present contribution will review experimental results obtained by Small-Angle X-ray Scattering in three different configurations, all concerning Al-Zn-Mg-Cu alloys: first, dynamic precipitate evolution during plastic deformation at ageing temperature; second, dynamic precipitation during low cycle fatigue at room temperature; and third, precipitation during ageing of a material processed by room temperature high pressure torsion. The experimental evidence will be used to discuss the role of the different mechanisms of interaction with plasticity on the precipitate microstructure evolution.
AB - Dynamic interactions between plastic deformation and precipitation processes in Aluminium alloys can lead to large changes in precipitation kinetics as compared to conventional heat treatments. This can be due to a number of different mechanisms such as changes in vacancy concentrations or movement of structural defects. Understanding the underlying mechanisms requires a quantitative measurement of the precipitate evolution as a function of deformation conditions, temperature and time. The present contribution will review experimental results obtained by Small-Angle X-ray Scattering in three different configurations, all concerning Al-Zn-Mg-Cu alloys: first, dynamic precipitate evolution during plastic deformation at ageing temperature; second, dynamic precipitation during low cycle fatigue at room temperature; and third, precipitation during ageing of a material processed by room temperature high pressure torsion. The experimental evidence will be used to discuss the role of the different mechanisms of interaction with plasticity on the precipitate microstructure evolution.
UR - http://www.scopus.com/inward/record.url?scp=84904390083&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/MSF.794-796.1133
DO - 10.4028/www.scientific.net/MSF.794-796.1133
M3 - Conference contribution
AN - SCOPUS:84904390083
SN - 9783038351207
T3 - Materials Science Forum
SP - 1133
EP - 1140
BT - Aluminium Alloys, ICAA 2014
A2 - Marthinsen, Knut
A2 - Holmedal, Bjørn
A2 - Li, Yanjun
PB - Trans Tech Publications Ltd
T2 - 14th International Conference on Aluminium Alloys, ICAA 2014
Y2 - 15 June 2014 through 19 June 2014
ER -