Effect of transient liquid phase bonding time on the microstructure, isothermal solidification completion and the mechanical properties during bonding of Inconel 625 superalloy using Cr-Si-B-Ni filler metal

2019 ◽  
Vol 38 ◽  
pp. 235-243 ◽  
Author(s):  
Alireza Doroudi ◽  
Ali Shamsipur ◽  
Hamid Omidvar ◽  
Masoud Vatanara
Keyword(s):  
Mechanical Properties ◽  
Liquid Phase ◽  
Filler Metal ◽  
Transient Liquid Phase ◽  
Isothermal Solidification ◽  
Bonding Time ◽  
Inconel 625 ◽  
Transient Liquid Phase Bonding ◽  
Inconel 625 Superalloy

Mathematical Modeling and Experimental Investigations of Isothermal Solidification during Transient Liquid Phase Bonding of Nickel Superalloys

2006 ◽  
Vol 15-17 ◽  
pp. 882-887 ◽  
Author(s):  
Muhammad A. Arafin ◽  
Mamoun Medraj ◽  
Daniel P. Turner ◽  
Philippe Bocher
Keyword(s):  
Liquid Phase ◽  
Transient Liquid Phase ◽  
Isothermal Solidification ◽  
Holding Time ◽  
Inconel 625 ◽  
Experimental Investigations ◽  
Transient Liquid Phase Bonding ◽  
Holding Period ◽  
Nickel Base ◽  
Time Required

Mathematical model, based on Fick’s second law of diffusion, was used to predict the time required to complete isothermal solidification and to determine the effect of process variables during the transient liquid phase bonding of Inconel 625 and 718 superalloys with nickel based brazing filler alloy BNi-2. Experimental investigations were carried out in the range of 1325 – 1394K to verify the model and the predicted times were in excellent agreement with the experimentally determined values. The obtained activation energies for diffusion of boron were very close to the ones reported for other nickel base polycrystalline superalloys; however, it was observed that the time required for complete isothermal solidification are significantly less than that of other nickel based superalloys with different nickel based brazing filler alloys. Because of this advantage, these combinations of base and filler alloys are expected to replace other currently used ones. Further, significant reduction of holding time was observed with increasing brazing temperature and with decreasing joint gap. The composition of the joints at the end of holding period, when the holding time was not sufficient to complete isothermal soldification, has been determined in order to predict the amount of brittle eutectic phases in the final joint microstructures.

scholarly journals Effect of the isothermal solidification completion on the mechanical properties of Inconel 625 transient liquid phase bond by changing bonding temperature

2020 ◽  
Vol 9 (5) ◽  
pp. 10355-10365
Author(s):  
Alireza Doroudi ◽  
Ali Ebrahimzadeh Pilehrood ◽  
Mohammadjavad Mohebinia ◽  
Ali Dastgheib ◽  
Armin Rajabi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Liquid Phase ◽  
Bonding Temperature ◽  
Transient Liquid Phase ◽  
Isothermal Solidification ◽  
Inconel 625
Sign in / Sign up

Export Citation Format

Share Document