Braze and Carbide Interactions

Enneti, R. K., Myers, N., & German, R. (2002). Braze and Carbide Interactions. Advances in Powder Metallurgy and Particulate Materials - 2002, Metal Powder Industries Federation, Princeton, NJ. 6.110-6.11.

Abstract

Brazing is popular method of joining carbides to steel structures. Wetting behavior of the braze alloy on the ceramic plays an important role in this process. Active brazing uses an active element like Ti, Zr, Cr etc. in the braze alloy to react with the ceramic and improve the wetting behavior of the braze alloy. In this paper preliminary results of wetting study of Ni based braze alloys, a Co based alloy and a Fe based alloy on different carbides is presented. 3wt% Ti is added to the braze alloys and the effect of Ti on the wetting behavior of the brazes is studied. Thermodynamic approach is used to analyze the wetting behavior and effect of Ti addition to the braze alloys.