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IMMC

Matthieu Baudouin Lezaack
Post-doctoral researcher

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Funding: FRIA
Supervisor(s): Aude Simar

Al 7XXX alloys will be characterized before and after friction stir process (FSP) in order to identify the damage mechanisms. The performances of FSPed alloys will be studied by macromechanical testing. Up to now, a 150% increase in ductility was reached by FSP + heat treatments compared to the base 7475 Al material. Then a numerical model will catch the 7XXX aluminium behavior in a close future.

IMMC main research direction(s):
Processing and characterisation of materials
Solid mechanics

Keywords:
fracture mechanics
metallic alloys
plasticity

Research group(s): IMAP
Collaborations: Numerical model with Ludovic Noëls (ULiège)

    

Recent publications

See complete list of publications

Journal Articles


1. Lezaack, Matthieu Baudouin; Hannard, Florent; Simar, Aude. Understanding the ductility versus toughness and bendability decoupling of large elongated and fine grained Al 7475 - T6 alloy. In: Materials Science and Engineering: A, Vol. 839, p. 142816 (2022). doi:10.1016/j.msea.2022.142816. http://hdl.handle.net/2078.1/258995

2. Lezaack, Matthieu Baudouin; Simar, Aude; Marchal, Yannick; Steinmetz, Martin; Faes, Koen; Saraiva Esteves Pacheco De Almeida, João. Dissimilar friction welding of NiTi shape memory alloy and steel reinforcing bars for seismic performance. In: Science and Technology of Welding and Joining, Vol. -, no.-, p. 1-12 (2022). doi:10.1080/13621718.2022.2061692. http://hdl.handle.net/2078.1/260200

3. Lezaack, Matthieu Baudouin; Simar, Aude. Avoiding abnormal grain growth in thick 7XXX aluminium alloy friction stir welds during T6 post heat treatments. In: Materials Science and Engineering: A, Vol. 807, p. 140901 (2021). doi:10.1016/j.msea.2021.140901. http://hdl.handle.net/2078.1/243408

4. Simar, Aude; Hannard, Florent; Lezaack, Matthieu Baudouin; Santos Macias, Juan Guillermo; Zhao, Lv; Pyka, Grzegorz. Extended durability for high strength aluminium alloys. In: The Innovation Patform, Vol. on line (2020). http://hdl.handle.net/2078.1/237842


Conference Papers


1. Lezaack, Matthieu Baudouin; Hannard, Florent; Simar, Aude. Towards high strength and high ductility 6XXX and 7XXX aluminium alloys. 2021 xxx. http://hdl.handle.net/2078.1/244592

2. Han, Sutao; Lezaack, Matthieu Baudouin; Simar, Aude; Hannard, Florent. Ductility and Formability Enhancement by FSP in 7XXX Al alloys. 2021 xxx. http://hdl.handle.net/2078.1/259603

3. Lezaack, Matthieu Baudouin; Simar, Aude. Thick 7XXX friction stir welds resistant to coarse recrystallization during solution heat treatments. 2020 xxx. http://hdl.handle.net/2078.1/236296

4. Lezaack, Matthieu Baudouin; Simar, Aude; Zhao, Lv. Ductilization by multi-pass Friction Stir Processing of thick 7475 aluminium alloy. 2019 xxx. http://hdl.handle.net/2078.1/221887

5. Lezaack, Matthieu Baudouin; Zhao, Lv; Simar, Aude. Amélioration de la ductilité de l’alliage d’aluminium 7475 par procédé de friction malaxage (FSP). 2019 xxx. http://hdl.handle.net/2078.1/218690

6. Lezaack, Matthieu Baudouin; Zhao, Lv; Simar, Aude. Ductilization of 7475 aluminium alloy by Friction Stir Processing: homogenization of microstructural constituents. 2019 xxx. http://hdl.handle.net/2078.1/220258

7. Lezaack, Matthieu Baudouin; Florent, Hannard; Simar, Aude. Modifications des propriétés d’endommagement de l’aluminium 7475 en tôle de forte épaisseur par le procédé de friction-malaxage. 2018 xxx. http://hdl.handle.net/2078.1/207815

8. Lezaack, Matthieu Baudouin; Simar, Aude. Micro-hardness evolution in Friction Stir Processed 7475 aluminium plate. 2018 xxx. http://hdl.handle.net/2078.1/214220