Banca de QUALIFICAÇÃO: ROMULO ROCHA DE ARAUJO LIMA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ROMULO ROCHA DE ARAUJO LIMA
DATA : 31/08/2022
LOCAL: Exame de Qualificação
TÍTULO:

AVALIAÇÃO DAS TENSÕES RESIDUAIS EM CHAPAS DISSIMILARES (AÇO
INOXIDÁVEL ASTM A240 TP 304 / AÇO CARBONO ASTM A-36) SOLDADAS
PELO PROCESSO GMAW – SEMI-AUTOMATIZADO

PALAVRAS-CHAVES:

Tensões residuais. ASTM A-240 TP 304. ASTM A-36. Método DPC

PÁGINAS: 78
RESUMO:

The residual stresses in dissimilar plates (stainless steel ASTM A240TP 304 and
carbon steel ASTM A 36) welded by GMAW (MIG/MAG) semi-automated process will
be evaluated. The measurement method used was CPD – Coordinate points
displacement, wich has a theoretical-experimental methodology under developnent in
UFPE. For this study, twelve test plates will be manufactured, using a carbon steel
plate a side and a stainless-steel plate the other side. On each side, will be done six
holes, one of them with 10 mm(referential) and the other ones(five) with 2 mm next to
HAZ( heat affected zone), using the distance between the centers of 10 mm in X axis
and 5 mm in Y axes. After welding, the drill holes in the plates were referenced in a
measuring table by coordinates. After welding, the holes on both sides of the plate
will be referenced in a table by a coordinate measurement. Then, the test plates will
be heat treated for tension relief. After being treated, new measurement will be taken
in order to measure the displacement produced by the heat-treatment. Based on
produced displacements, tensions will be calculated on X axes (transversal) and Y
axes (longitudinal). By this way, with the results obtained in the study, it will be
possible to analysis the residual stress on dissimilar materials, using the same weld
bead.

MEMBROS DA BANCA:
Presidente - 1215178 - RICARDO ARTUR SANGUINETTI FERREIRA
Interno - 2296912 - OSCAR OLIMPIO DE ARAUJO FILHO
Externo ao Programa - 2320860 - YOGENDRA PRASAD YADAVA