PHASE IDENTEFATION OF INCONEL 738 LC SUPERALLOY BY ACTIVE BRAZING ALLOY OF (28 Ni 72 Ti)

Abstract

in this study, Inconel 738LC superalloy brazed by (28Ni72Ti) which was used as an active filler alloy at temperature at 985ºC for (15min) this process achieved in a furnace brazing under high purity of a protective gas (99.999 Argon gas) to ensure that joints free from oxidation and contamination. The XRD and microstructure analysis was implemented to investigate the bonding morphology and the bonding strength was estimated from shear test. The results illustration that highest shear strength was 29 MPa and the morphologically the strength of bonding was inclined by the creation of reaction layers that cross over in the center of the brazing area due to the interdiffusion effects of several constituents from base metal (738 superalloy ) and active brazed metal (28Ni72Ti).Use of word processing software It is important that the file be saved in the native format of the word processor used. The text should be in single-column format. Keep the layout of the text as simple as possible. 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