Members

IMMC

Juan Guillermo Santos Macias
PhD student
Ir. at UC3M in 2015
Contact

Main project: Surface mechanical treatment by friction stir processing of additive manufactured aluminium alloy parts to improve mechanical behaviour
Funding: FRIA
Supervisor(s): Aude Simar, Pascal Jacques

This research project aims at improving the mechanical behaviour of additive manufactured parts through a friction stir processing (FSP) surface mechanical treatment. This post-processing method significantly enhances ductility and is expected to also enhance fatigue resistance. Fatigue is a critical phenomenon in many applications, e.g. structural parts in the aerospace industry. More specifically, this research is focused on studying the effect of FSP on the microstructure (porosity and second phase size and spatial distribution) and mechanical behaviour (residual stresses and fatigue) of selective laser melting AlSi10Mg parts. Furthermore, in order to define an adequate FSP patterning strategy, the project will also feature an analysis of the influence of processing parameters through a chained thermal and microstructural model.

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

Keywords:
microstructure-processing relationships
selective laser melting (slm)
welding and joining

Research group(s): IMAP

  

Recent publications

See complete list of publications

Journal Articles


1. Santos Macias, Juan Guillermo; Elangeswaran, Chola; Zhao, Lv; Van Hooreweder, Brecht; Adrien, Jérôme; Maire, Eric; Buffière, Jean-Yves; Ludwig, Wolfgang; Jacques, Pascal; Simar, Aude. Ductilisation and fatigue life enhancement of selective laser melted AlSi10Mg by friction stir processing. In: Scripta Materialia, Vol. 170, p. 124-128 (2019). doi:10.1016/j.scriptamat.2019.05.044. http://hdl.handle.net/2078.1/216469

2. Zhao, Lv; Santos Macias, Juan Guillermo; Ding, Lipeng; Idrissi, Hosni; Simar, Aude. Damage mechanisms in selective laser melted AlSi10Mg under as built and different post-treatment conditions. In: Materials Science and Engineering: A, Vol. 764, p. 138210 (2019). doi:10.1016/j.msea.2019.138210. http://hdl.handle.net/2078.1/220043


Conference Papers


1. Simar, Aude; Santos Macias, Juan Guillermo; Poncelet, Olivier; van der Rest, Camille; Marteleur, Matthieu; Elangeswaran, Chola; Van Hooreweder, Brecht; Maire, Eric; Adrien, Jérôme; Buffière, Jean-Yves. Improving fatigue resistance of selective laser melted aluminum alloy AlSi10Mg. http://hdl.handle.net/2078.1/207818

2. Santos Macias, Juan Guillermo; Zhao, Lv; Simar, Aude. Damage mechanisms in selective laser melted AlSi10Mg under as built and different post-treatment conditions. http://hdl.handle.net/2078.1/216109

3. Dolimont, A.; Santos Macias, Juan Guillermo; Zhao, Lv; Simar, Aude; Rivière-Lorphèvre, E.. Comparing residual stresses in metal powder bed additive manufacturing (SLM and EBM). http://hdl.handle.net/2078.1/216110

4. Santos Macias, Juan Guillermo; Zhao, Lv; Elangeswaran, Chola; Van Hooreweder, Brecht; Adrien, Jérôme; Buffière, Jean-Yves; Maire, Eric; Simar, Aude. Friction stir processing of selective laser melted AlSi10Mg for mechanical behaviour enhancement. Study on damage mechanism evolution. http://hdl.handle.net/2078.1/220260

5. Santos Macias, Juan Guillermo; Buffière, Jean-Yves; Maire, Eric; Adrien, Jérôme; Elangeswaran, Chola; Cutolo, Antonio; Van Hooreweder, Brecht; Lani, Frédéric; Jacques, Pascal; Simar, Aude. On the mechanical behaviour of SLM AlSi10Mg and its improvement by friction stir processing. http://hdl.handle.net/2078.1/195889

6. Simar, Aude; Delroisse, Pauline; Jacques, Pascal; Marteleur, Matthieu; Poncelet, Olivier; Santos Macias, Juan Guillermo; van der Rest, Camille. Mechanical properties of selective laser melted aluminium alloy AlSi10Mg: from bulk to thin structures. http://hdl.handle.net/2078.1/207816

7. Santos Macias, Juan Guillermo; Jacques, Pascal; Bacroix, Brigitte; Van Hooreweder, Brecht; Elangeswaran, Chola; Maire, Eric; Adrien, Jérôme; Simar, Aude. Post-treatment of additive manufactured aluminium parts: Friction stir processing and hot isostatic pressing. In: Proceedings of the ICEM 2018 - 18th international conference on experimental mechanics, 2018. http://hdl.handle.net/2078.1/200714

8. Santos Macias, Juan Guillermo; Jacques, Pascal; Van Hooreweder, Brecht; Elangeswaran, Chola; Lani, Frédéric; Maire, Eric; Adrien, Jérôme; Simar, Aude. SLM AlSi10Mg mechanical behaviour improvement by friction stir processing. In: Proceedings of the 3rd Workshop on Metal Additive Manufacturing, 2018. http://hdl.handle.net/2078.1/200712

9. Simar, Aude; Santos Macias, Juan Guillermo; van der Rest, Camille; Marteleur, Matthieu; Jacques, Pascal. Amélioration des propriétés mécaniques d'alliage ALM d'aluminium AlSi10Mg. http://hdl.handle.net/2078.1/216496

10. Santos Macias, Juan Guillermo; Van Hooreweder, Brecht; Maire, Eric; Adrien, Jérôme; Jacques, Pascal; Simar, Aude. Friction stir processing of additive manufactured AlSi10Mg parts to improve mechanical behaviour. In: Proceedings of the 5th International Conference on Scientific and Technial Advances on Friction Stir Welding & Processing, 2017. http://hdl.handle.net/2078.1/200708