INVESTIGADORES
AUDEBERT Fernando Enrique
artículos
Título:
Joining Steel Tubes Employing Fe-Si-B Metallic Glasses as Filling Material
Autor/es:
C. EPELBAUM, M. FONTANA, F. AUDEBERT AND B. ARCONDO
Revista:
JOURNAL OF MATERIALS SCIENCE
Editorial:
Springer
Referencias:
Año: 2005 p. 4867 - 4871
ISSN:
0022-2461
Resumen:
Bonding
of seamless, low carbon, steel tubes were performed by means of a transient
liquid phase bonding (TLPB) process employing a Fe-Si-B glassy metal as filling
material. The butt joints were performed by induction heating under a moderate
pressure and argon flux. Thermal cycles consisting of a fast heating followed
by an isothermal stage and ending with a controlled cooling down to room
temperature were applied. The isothermal stages performed for a time t at
temperature T (TW < T < TT with TW and TT
the melting temperature of the glassy metal and the tube materials
respectively).
The microstructures of the joint zones were analyzed employing optical
and scanning electronic microscopy, energy dispersive X ray and electron probe
microanalysis. The diffusion of the elements during the process was studied.
The bonding process was modeled in order to determine the Si distribution for
different length of the isothermal stage. The results from modeling are
compared to the experimental data and the bonding process is discussed.