Abstracts Book - IMRC 2018

By means of metallography of weld beads, it was determined that the length of
the AF needles increases in 113 and 183 % when adding SiO 2 - or Al 2 O 3 -NPs,
respectively. Related to the mechanical properties of the weld bead, its tensile
and yield strength decrease with both, SiO 2 - or Al 2 O 3 -NPs addition. The
microhardness at WZ was found to decrease by adding such oxide-NPs.
Moreover, the impact energy absorbed by the weld beads increases
approximately by 83 or 57% due SiO 2 - or Al 2 O 3 -NPs addition, respectively.
Acknowledgment:
The development of the project was supported by Conacyt and SIP-IPN. The
authors are grateful for the collaboration of Dr. Elvía Díaz Valdez, Dr. Angel
Guillén and Mr. Justo Arias Paniagua. Also, is appreciated the support provided
by the laboratories of ESIQIE-IPN, UAM-Azcapotzalco and Cinvestav-Zacatenco.
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Keywords: Acicular Ferrite, SiO2- and Al2O3-Nanoparticles, Submerged Arc Welding
Presenting authors email: abel237jimenez@gmail.com