Study of bonding interfaces within dissimilar metals by means of ultrasonic waves

Authors

  • G. A. López Instituto de Investigaciones Metalúrgicas. Edificio "U", Ciudad Universitaria, Francisco J. Mújica
  • A. López
  • A. Huerta Instituto de Investigaciones Metalúrgicas. Edificio "U", Ciudad Universitaria, Francisco J. Mújica
  • D. Jaramillo Instituto Politécnico Nacional. E.S.I.Q.I.E. Departamento de Ingeniería Metalúrgica

DOI:

https://doi.org/10.3989/revmetalm.1999.v35.i1.601

Keywords:

Acoustic impedance, Dissimilar metals, Amplitudes, Interfaces, Wave form

Abstract


As a result of the associated problems to evaluate bonding characteristics of interfaces between dissimilar metals, mainly those cladded, it has been propposed the use of ultrasonic methods. Acoustic impedance methods had been tested succesfully in the study of plastic-aluminium (glued) and babbit-steel (bearing) interfaces. Preliminary results on explosively bonded aluminium-steel and aluminium-lead interfaces are presented. A digital ultrasonic device with a 5 Mhz transducer was used in this study. So far, results have shown that "VID" signal gives an acceptance criterion based on the ratio of amplitudes coming from interface and bottom surface, meanwhile "RF" signal gives the same criterion based on wave form. It is concluded that VID and RF signals could be used to achieve characteristics of the bonded interfaces.

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Published

1999-02-28

How to Cite

López, G. A., López, A., Huerta, A., & Jaramillo, D. (1999). Study of bonding interfaces within dissimilar metals by means of ultrasonic waves. Revista De Metalurgia, 35(1), 17–21. https://doi.org/10.3989/revmetalm.1999.v35.i1.601

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Section

Articles