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Applied Physics A

, Volume 74, Supplement 1, pp s1695–s1697 | Cite as

Neutron-diffraction measurement of residual stresses in Al–Cu cold-cut welding

  • F. Fiori
  • M. Marcantoni

Abstract.

Usually, when it is necessary to join different materials with a large difference in their melting points, welding should be avoided. To overcome this problem we designed and built a device to obtain cold-cut welding, which is able to strongly decrease oxidation problems of the surfaces to be welded. Thanks to this device it is possible to achieve good joining between different pairs of materials (Al–Ti, Cu–Al, Cu–Al alloys) without reaching the material melting point. The mechanical and microstructural characterisation of the joining and the validation of its quality were obtained using several experimental methods. In particular, in this work neutron-diffraction experiments for the evaluation of residual stresses in Cu–Al junctions are described, carried out at the G5.2 diffractometer of LLB, Saclay. Neutron-diffraction results are presented and related to other experimental tests such as microstructural characterisation (through optical and scanning electron microscopy) and mechanical characterisation (tensile-strength tests) of the welded interface.

PACS: 61.12.Ex; 07.10.-h 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • F. Fiori
    • 1
  • M. Marcantoni
    • 2
  1. 1.Istituto Nazionale per la Fisica della Materia, Research Unit of Ancona and Istituto di Scienze Fisiche, University of Ancona, Via Ranieri 65, 60131 Ancona, ItalyIT
  2. 2.Istituto Nazionale per la Fisica della Materia, Research Unit of Ancona and Dipartimento di Meccanica, University of Ancona, Via Brecce Bianche, 60131 Ancona, ItalyIT

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