%0 Journal Article
%T Estudo microestrutural de a£żo carbono soldado com o processo arco submerso e adi£ż£żes de Fe-Ti
%A Paris
%A Aleir Fontana de
%A Mulazzani
%A Francisco
%A Paris
%A Jean-Michel de
%J Soldagem & Inspe£ż£żo
%D 2012
%I Associa??o Brasileira de Soldagem
%R 10.1590/S0104-92242012000100009
%X the welds usually have a coarse columnar structure, which reduces the mechanical properties of welded assembly. in the case of submerged arc welding, the use of high-energy provides a weld with specific characteristics such as high melting rate and consequently a large volume of molten metal. it was established that the reduction in size and/or changes in the shape of the crystals obtained increases the toughness of the weld. studies have shown that the addition of titanium to a certain limit, modify the microstructure obtained and the size of the grains solidified. in this study, we used an alloy of fe-ti added at the time of welding-type bead-on-plate on structural steel astm a 36 with a thickness of 10 mm. the additions of titanium ranged between 0.48 ppm and 29.1 ppm, and welding was performed with an energy of 1170 kj/m the results showed changes in the phase acicular ferrite and polygonal ferrite present in the weld.
%K submerged arc welding
%K fe-ti alloy
%K microstructure
%K mechanical properties.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0104-92242012000100009&lng=en&nrm=iso&tlng=en