• DOI:10.4028/www.scientific.net/AMR.602-604.2087
• Corpus ID: 136867744

Vacuum Brazing of GH2132 Superalloy Using BNi-2+BNi-5 Composite Filler

@article{Li2012VacuumBO,
  title={Vacuum Brazing of GH2132 Superalloy Using BNi-2+BNi-5 Composite Filler},
  author={Ruifeng Li and Zhishui Yu and Kai Qi},
  journal={Advanced Materials Research},
  year={2012},
  volume={602-604},
  pages={2087 - 2091},
  url={https://api.semanticscholar.org/CorpusID:136867744}
}

• Ruifeng Li, Zhishui Yu, K. Qi
• Published 1 December 2012
• Materials Science, Engineering
• Advanced Materials Research

In order to overcome the over formed intermetallic compound and the grain boundary penetration phenomenon in superalloys brazed joint using BNi-2 filler, the three variable portion of BNi2+BNi-5 composite filler is used to vacuum braze GH2132 superalloy. The results showed that the addition of BNi5 filler can decrease the formation of intermetallic compounds. For composite brazing filler of BNi2+40%BNi5, the brazing seam mainly composes of solid solution phase. The amounts of intermetallic… 

In order to overcome the over formed intermetallic compound and the grain boundary penetration phenomenon in superalloys brazed joint using BNi-2 filler, the three variable portion of BNi2+BNi-5 composite filler is used to vacuum braze GH2132 superalloy. The results showed that the addition of BNi5 filler can decrease the formation of intermetallic compounds. For composite brazing filler of BNi2+40%BNi5, the brazing seam mainly composes of solid solution phase. The amounts of intermetallic compounds increased with the increase of brazing temperature and brazing clearance. The microhardness of the intermetallic compound is about 380~400 HV which is detrimental to the mechanical properties of the brazing joint.