Residual stress distribution in ferritic to austenitic steel joints made by laser welding,

Iordachescu, Mihaela; Ruiz Hervías, Jesús; Luzin, V.; Scutelnicu, Elena; Valiente Cancho, Andrés y Ocaña Moreno, José Luis (2013). Residual stress distribution in ferritic to austenitic steel joints made by laser welding,. "The Annals of Dunarea de Jos University of Galati", v. 24 (n. 12); pp. 45-49. ISSN 1221-4639.

Descripción

Título: Residual stress distribution in ferritic to austenitic steel joints made by laser welding,
Autor/es:
  • Iordachescu, Mihaela
  • Ruiz Hervías, Jesús
  • Luzin, V.
  • Scutelnicu, Elena
  • Valiente Cancho, Andrés
  • Ocaña Moreno, José Luis
Tipo de Documento: Artículo
Título de Revista/Publicación: The Annals of Dunarea de Jos University of Galati
Fecha: 2013
Volumen: 24
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ciencia de los Materiales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In this study, autogenous laser welding was used to join thin plates of low carbon ferritic and austenitic stainless steel. Due to the differences in the thermo-physical properties of base metals, this kind of weld exhibits a complex microstructure, which frequently leads to an overall loss of joint quality. Four welded samples were prepared by using different sets of processing parameters, with the aim of minimizing the induced residual stress field. The dissimilar austenitic-ferritic joints obtained under all welding conditions were uniform and free of defects. Variations in beam position did not influence the weld geometiy, which is a typical keyhole welding. Microstructural characterization and residual strain scanning (by neutron diffraction) were used to assess the features of the joints. By varying laser beam power density and by displacing the laser beam towards the carbon steel side, an optimum combination of processing parameters was found.

Más información

ID de Registro: 29037
Identificador DC: http://oa.upm.es/29037/
Identificador OAI: oai:oa.upm.es:29037
URL Oficial: http://www.cmrs.ugal.ro/AWET.htm
Depositado por: Memoria Investigacion
Depositado el: 10 Jun 2014 10:53
Ultima Modificación: 03 Mar 2017 16:44
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