TY - JOUR
T1 - Fabrication of aluminum alloy foams by using alternative thickening agents via melt route
AU - González Nava, Marlenne
AU - Cruz-Ramírez, Alejandro
AU - Suarez Rosales, Miguel Ángel
AU - Gutiérrez-Pérez, Víctor Hugo
AU - Sánchez-Martínez, Angélica
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017
Y1 - 2017
N2 - In our current work, closed-cell A356 aluminum alloy foams were successfully fabricated by using 0.8, 1.0 and 1.2 wt% of barite and wollastonite obtained from the primary minerals processing as thickening agents and calcium carbonate as a foaming agent. The microstructure and mechanical properties of the foams manufactured were analyzed and compared with foams produced with 0.8, 1.0 and 1.2 wt % of alumina and calcium carbonate as thickening and blowing agents, respectively. Foams produced with wollastonite additions showed the highest porosity percent values (86.9%) and cell sizes (0.438 mm) but the lowest energy absorption capacity of (1.58 MJm−3). On the other hand, the foams produced with barite additions exhibit a good combination of structure and mechanical properties such as cell size of (0.312 mm), porosity percent (85%) and energy absorption capacity (3.81 MJm−3). Foams obtained with alumina additions showed intermediate values of porosities and cell sizes between the foams obtained with barite and wollastonite and the presence of oscillations in the plateau region. The foam obtained with 1 wt % barite showed the highest mean ideality energy absorption efficiency and the longest sustained stage with the smallest fluctuation of the efficiency. The energy absorption efficiency of the foams produced decreases when the porosity and cell size increase. Therefore, the foam produced with barite addition show the best behavior of the energy absorption efficiency, which contributes as a potential thickening agent to the application in engineering field.
AB - In our current work, closed-cell A356 aluminum alloy foams were successfully fabricated by using 0.8, 1.0 and 1.2 wt% of barite and wollastonite obtained from the primary minerals processing as thickening agents and calcium carbonate as a foaming agent. The microstructure and mechanical properties of the foams manufactured were analyzed and compared with foams produced with 0.8, 1.0 and 1.2 wt % of alumina and calcium carbonate as thickening and blowing agents, respectively. Foams produced with wollastonite additions showed the highest porosity percent values (86.9%) and cell sizes (0.438 mm) but the lowest energy absorption capacity of (1.58 MJm−3). On the other hand, the foams produced with barite additions exhibit a good combination of structure and mechanical properties such as cell size of (0.312 mm), porosity percent (85%) and energy absorption capacity (3.81 MJm−3). Foams obtained with alumina additions showed intermediate values of porosities and cell sizes between the foams obtained with barite and wollastonite and the presence of oscillations in the plateau region. The foam obtained with 1 wt % barite showed the highest mean ideality energy absorption efficiency and the longest sustained stage with the smallest fluctuation of the efficiency. The energy absorption efficiency of the foams produced decreases when the porosity and cell size increase. Therefore, the foam produced with barite addition show the best behavior of the energy absorption efficiency, which contributes as a potential thickening agent to the application in engineering field.
KW - Barite
KW - Energy absorption efficiency
KW - Metallic foams
KW - Thickening agent
KW - Wollastonite
UR - http://www.scopus.com/inward/record.url?scp=85007436563&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2016.12.170
DO - 10.1016/j.jallcom.2016.12.170
M3 - Artículo de revisión
SN - 0925-8388
VL - 698
SP - 1009
EP - 1017
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -