Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Arc welding of Dissimilar Metals:FEM and Experiments
Year:2008
Research Areas
  • Naval engineering,
  • Construction materials
Information
Abstract
Arc welding of Dissimilar Metals:FEM and Experiments. An asymmetrical temperature field is noticed on dissimilar metals welding due to different thermo-physical properties. �� A slight increase of temperature, and a higher elongation of the heat affected zone and weld pool can be noticed with increasing the welding time. �� HAZ width of the low carbon steel decreases when moving the welding source closer to copper, and the negative effects induced by the welding process are reduced in this base metal. �� A material with small conductivity requires a small heat input per unit of weld length, whereas a large conductivity material requires a large heat input per unit of weld length. Increasing the heat input, the bainite formation may occur in HAZ, strongly affecting the mechanical properties of the welded joint. �� The copper islands visible in the transition area of the low carbon steel leads to a poorer cohesion among the crystal grains in this area. �� The undesired thermal effects of the welding process on the carbon steel and the related issues can be reduced by an asymmetric positioning (closer to the copper) of the heat source moving along the gap.
International
Si
Congress
8TH INTERNATIONAL CONFERENCE ON TRENDS IN WELDING RESEARCH
960
Place
PINE MOUNTAIN, GEORGIA (EE.UU.)
Reviewers
Si
ISBN/ISSN
0000000000
Start Date
01/06/2008
End Date
06/06/2008
From page
1
To page
1
PROC. OF 8TH INTERNATIONAL CONFERENCE ON TRENDS IN WELDING RESEARCH
Participants
  • AUTOR: ELENA SCUTELNICU (DUNAREA DE JOS UNIVERSITY OF GALATI)
  • Autor: Danut Iordachescu . (UPM)
  • Autor: Manuel Blasco Litago (UPM)
  • Autor: Mihaela Iordachescu (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Departamento: Ciencia de los Materiales
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
  • Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
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