Journal of Materials Science

, Volume 43, Issue 14, pp 4938–4944 | Cite as

Transient liquid phase bonding of steel using an Fe–B interlayer: microstructural analysis

  • N. Di Luozzo
  • M. Fontana
  • B. ArcondoEmail author


Transient liquid phase bonding processes have been performed to join two carbon steel tubes using Fe96.2B3.8 wt% amorphous ribbons as interlayer. Welding experiments were performed at the temperature T ≈ 1,250 °C for different durations and under pressures of 0.8, 2, 3, and 4 MPa. From metallographic inspection, it is concluded that the bonding process ends in 7.0 min if a pressure of 4 MPa is applied, whereas the process results incomplete if less pressure is applied. The metallurgical aspects of these joints are analyzed. Plastic deformation at the joint is observed. Micrographs show that if pressure increases, the amount of pro-eutectoid ferrite decreases, therefore, an increase in the hardenability of the steel occurs. This fact could be due to the effect of the compression plastic deformation that prevails at the joint zone.


Ferrite Austenite Bainite Pearlite Bonding Process 


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Tenaris University Industrial SchoolTenarisCampanaArgentina
  2. 2.Laboratorio de Solidos Amorfos, Instituto de Tecnologias y Ciencias de la Ingenieria, Facultad de IngenieriaUniversidad de Buenos Aires-CONICETBuenos AiresArgentina

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