@inproceedings{de81c0ace0f643caa5e7dae8c40424ba,
title = "Influence of the casting microstructure upon the tensile behaviour in A319 al-si alloy investigated by X-ray tomography and Digital Volume Correlation",
abstract = "Aluminum alloy automotive parts produced by the Lost Foam Casting (LFC) process have coarser microstructure and porosity defects than parts produced with conventional casting processes at faster cooling rates. This coarse microstructure has a major influence on the fatigue properties and crack initiation. In order to study its influence upon the mechanical behaviour, an experimental protocol has been set up using X-ray tomography and 3D Digital Volume Correlation (DVC). The present work focuses on the use of this protocol to study the influence of the casting microstructure upon the tensile behaviour. The 3D cracks were observed to initiate at large pores and microshrinkage cavities and then to propagate along the hard inclusions towards the free surface when cracks originate from a subsurface pore. The validated experimental protocol is presently applied to in-situ fatigue tests realized with synchrotron tomography and a newly developed DVC platform in order to analyze the damage micromechanisms of this alloy subjected to low cycle fatigue test.",
keywords = "Aluminum-silicon alloys, Digital Volume Correlation, X-ray tomography",
author = "Long Wang and Nathalie Limodin and \{El Bartali\}, Ahmed and Julien Rethore and Witz, \{Jean Fran{\c c}ois\} and Rian Seghir and Eric Charkaluk and Buffiere, \{Jean Yves\}",
year = "2014",
month = jan,
day = "1",
doi = "10.1002/9781118990278.ch12",
language = "English",
series = "3DMS 2014 - Proceedings of the 2nd International Congress on 3D Materials Science",
publisher = "John Wiley and Sons Inc.",
pages = "73--78",
editor = "Dominique Bernard and Jean-Yves Buffiere and Tresa Pollock and Tresa Pollock and Poulsen, \{Henning Friis\} and Anthony Rollett and Anthony Rollett and Anthony Rollett and Anthony Rollett and Michael Uchic",
booktitle = "3DMS 2014 - Proceedings of the 2nd International Congress on 3D Materials Science",
note = "2nd International Congress on 3D Materials Science, 3DMS 2014 ; Conference date: 29-06-2014 Through 02-07-2014",
}