TY - JOUR
T1 - Sio 2 and Al 2 O 3 nanoparticles effect on the microstructure and mechanical properties of the weld bead joining AISI 1025 steel plates
AU - Jiménez-Jiménez, A.
AU - Paniagua-Mercado, A. M.
AU - García-Bórquez, A.
AU - López-Hirata, V. M.
AU - De Ita-De La Torre, A. S.
AU - Miguel-Díaz, E.
AU - Saucedo-Muñoz, M. L.
N1 - Publisher Copyright:
© 2018 Materials Research Society.
PY - 2018
Y1 - 2018
N2 - The purpose of this work is to study the effect of SiO 2 - and Al 2 O 3 -NPs on the microstructure and mechanical properties of the weld bead (WB) created by a process of Submerged Arc Welding (SAW) between two AISI 1025 steel plates. Also it was necessary consider the chemical compositions of slags and burned fluxes, in order to determine the elements that are deposited and contribute in the final microstructure of WB. The welding materials to form each WB were a M12K electrode, a commercial fused flux (CFF) and AISI 1025 steel plates bevelled at 45°. In addition SiO 2 - or Al 2 O 3 -NPs an ethylic alcohol mixture were applied directly to the beveled surfaces, just before the SAW process, which was carried out according to the AWS A5.17 norm. Microstructural and phase changes at the Heat Affected Zone (HAZ) and Welding Zone (WZ) were analysed by metallographic Optical and Scanning Electron Microscopies. The mechanical properties of the WBs were determined through Tensile, Charpy impact and Vickers Hardness tests. By means of metallography of WBs, 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 WB, the tensile and yield strength decreases with both additions, SiO 2 - or Al 2 O 3 -NPs. The microhardness at WZ was found to decrease by adding such oxide-NPs. Moreover, the impact energy absorbed by the WBs increases approximately by 83 or 57% due to SiO 2 - or Al 2 O 3 -NPs addition, respectively.
AB - The purpose of this work is to study the effect of SiO 2 - and Al 2 O 3 -NPs on the microstructure and mechanical properties of the weld bead (WB) created by a process of Submerged Arc Welding (SAW) between two AISI 1025 steel plates. Also it was necessary consider the chemical compositions of slags and burned fluxes, in order to determine the elements that are deposited and contribute in the final microstructure of WB. The welding materials to form each WB were a M12K electrode, a commercial fused flux (CFF) and AISI 1025 steel plates bevelled at 45°. In addition SiO 2 - or Al 2 O 3 -NPs an ethylic alcohol mixture were applied directly to the beveled surfaces, just before the SAW process, which was carried out according to the AWS A5.17 norm. Microstructural and phase changes at the Heat Affected Zone (HAZ) and Welding Zone (WZ) were analysed by metallographic Optical and Scanning Electron Microscopies. The mechanical properties of the WBs were determined through Tensile, Charpy impact and Vickers Hardness tests. By means of metallography of WBs, 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 WB, the tensile and yield strength decreases with both additions, SiO 2 - or Al 2 O 3 -NPs. The microhardness at WZ was found to decrease by adding such oxide-NPs. Moreover, the impact energy absorbed by the WBs increases approximately by 83 or 57% due to SiO 2 - or Al 2 O 3 -NPs addition, respectively.
KW - microstructure
KW - steel
KW - stress/strain relationship
KW - toughness
KW - welding
UR - http://www.scopus.com/inward/record.url?scp=85061481312&partnerID=8YFLogxK
U2 - 10.1557/adv.2018.608
DO - 10.1557/adv.2018.608
M3 - Artículo
AN - SCOPUS:85061481312
SN - 2059-8521
VL - 3
SP - 3683
EP - 3694
JO - MRS Advances
JF - MRS Advances
IS - 62
ER -