TY - JOUR
T1 - Effect of TiO2-containing fluxes on the mechanical properties and microstructure in submerged-arc weld steels
AU - Paniagua-Mercado, Ana Ma
AU - Lopez-Hirata, Victor M.
AU - Dorantes-Rosales, Hector J.
AU - Estrada Diaz, Paulino
AU - Diaz Valdez, Elvia
PY - 2009/1
Y1 - 2009/1
N2 - This work presents a study of the effect of TiO2 additions in fluxes on the mechanical properties and microstructure of the weld metal formed during Submerged-Arc Welding (SAW) of ASTM A-36 steel plates. Four fluxes with about 9, 12, 15 and 18% Ti were used with a low-carbon electrode. The welding conditions were kept constant. The microstructure of the weld metal for each flux consisted mainly of equiaxed ferrite and acicular ferrite. The increase in the percentage of acicular ferrite and a decrease in its length were observed with an increase in titanium content. The increase in titanium content in fluxes also improved the toughness and ductility of the welds.
AB - This work presents a study of the effect of TiO2 additions in fluxes on the mechanical properties and microstructure of the weld metal formed during Submerged-Arc Welding (SAW) of ASTM A-36 steel plates. Four fluxes with about 9, 12, 15 and 18% Ti were used with a low-carbon electrode. The welding conditions were kept constant. The microstructure of the weld metal for each flux consisted mainly of equiaxed ferrite and acicular ferrite. The increase in the percentage of acicular ferrite and a decrease in its length were observed with an increase in titanium content. The increase in titanium content in fluxes also improved the toughness and ductility of the welds.
KW - Acicular ferrite
KW - Mechanical properties
KW - Submerged-arc welding
KW - Ti-containing inclusions
UR - http://www.scopus.com/inward/record.url?scp=58149461150&partnerID=8YFLogxK
U2 - 10.1016/j.matchar.2008.06.003
DO - 10.1016/j.matchar.2008.06.003
M3 - Artículo
SN - 1044-5803
VL - 60
SP - 36
EP - 39
JO - Materials Characterization
JF - Materials Characterization
IS - 1
ER -