Mechanical properties of AISI 316L stainless steels joined with a commercial Ni based amorphous foil

Abstract

Ni based braze filler metals containing B and Si elements, prepared either by rapid solidification or powder metallurgy have relatively low melting temperatures, which make them liable to join. This work presents the mechanical resistance of stainless steels 316L joints, bonded with an amorphous Metglas i MBF-15m foil at 1105 8C and 1170 8C joined for 5, 10, 15, 20 and 40 minutes, under a nitrogen atmosphere into an electric resistance furnace. Intermixed precipitate particles at the joining zone were formed and an improvement on the bonding samples for conditions of 1105 8C for 10 minutes were observed, since the number of unjoined islands were reduced and no interfase crack was detected. The average shear-tensile mechanical resistance of the joints ranged from about 54 MPa to 70 MPa, and from 47 MPa to 79 MPa, for samples joined at 1105 8C and 1170 8C, respectively.