Abstract
A study was made of the sinterability of PKh12N75S8R brazing alloy powder and a mechanical mixture of this powder with 15% of molybdenum (brazing alloy No. 6MA), which are widely used for the brazing of high-alloy steels. Appreciable shrinkage of compacts begins at 1000°C and steadily increases with rise in sintering temperature. The most intense shrinkage is observed above 1100°C, i.e., at temperature close to the solidus. The structure of brazing alloy No. 6MA produced by sintering at 1175–1200°C or melting consists of a γ solid solution and molybdenum suicides and chromium borides of various compositions.
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