Diffusion Bonding of Ferrous Compacts during Sintering (2nd Report) Diffusion Bonding of Fe-Cu-C Compacts

Abstract

This report shows the results of diffusion bonding of compacts consist of Fe-1C and Fe-3Cu, and some kinds of Fe-Cu-C compacts with different compositions during sintering. The diffusion bonding of the combination of Fe-1C inner and Fe-3Cu outer starts at relatively low sintering temperature which is around 1100K. Contrary to this, that of the opposite combination of Fe-3Cu inner and Fe-1C outer starts at 1356K which is the melting point of Cu. However, the bonding strength of both combinations sintered at 1403K shows approximately equal value.
In the combinations of Fe-Cu-C compacts with different compositions to each other, the choice of inner material which contains higher carbon than the outer results in high diffusion bonding strength, which is sufficient to applying for mechanical parts.