VERFAHREN ZUM ISOTHERMISCHEN HARTLÖTEN VON EINKRISTALLINEN GEGENSTÄNDEN

摘要

A process of brazing cracks and gaps in a single crystal article which takes places isothermally under the following conditions: the temperature of the isothermal solidification is between TLiqidus, Braze + 5*(wt-%BBraze) and (Tsolidus, base material - 70*(wt-%BBraze)), while (wt-%B * wt-%Cr) is between 15 and 40 and (Tsolv. gamma ', base material - TLiqidus, Braze) is above 140 DEG C. This results in an homogeneous gamma / gamma '-microstructure of the isothermal solidified, brazed joint with mechanical properties similar to those of the base material.