APPLICATION OF AMORPHOUS AND MICROCRYSTALLINE FILLER METALS FOR BRAZING OF BERYLLIUM WITH METALS

Rapidly solidified (RS) amorphous and microcrystalline ribbon-type bra zing filler metals (FMs) represent a promising facility for joining he terogeneous materials together. The advantage results are followed fro m the homogeneity of element and phase compositions and the strictly s pecified geometrical dimensions of such FMs. Produced by rapid solidif ication technology amorphous FM: Zr-Ti-Fe-Be (STEMET(1) 1403) and micr ocrystalline FMs: Al-Si (STEMET 1501), Cu-Sn-Mn-In-Ni (STEMET 1120) an d Cu-Sn-In-Ni (STEMET 1108) were used. Brazing of beryllium with metal s (Be + Cu; Be + SS; Be + V) was performed using ribbon-type FMs. Meta llographic and microprobe analysis of brazed zones suggested that comp onents of FMs are uniformly distributed, pores and cracks are absent. Tensile strength testing of brazed joints was carried out.