Kinetics of isothermal solidification during transient liquid phase bonding of Inconel 718 superalloy by differential scanning calorimetry

Abstract

In the transient liquid phase bonding of Inconel 718 alloy, the time for isothermal solidification is measured by using the cyclic differential scanning calorimetry method. The enthalpy of solidification of the remnant liquid is used in the current investigation to determine the isothermal solidification rate and time. The differential scanning calorimetry results reveal a reduction in interlayer width during the heating and melting stage of transient liquid phase bonding due to the rapid interdiffusion of elements. The result also reveals that the isothermal solidification time for a eutectic-free joint depends upon the actual width of the interlayer material. The actual width of the interlayer material prior to isothermal solidification is found to be less than the initial width of the interlayer material due to rapid diffusional solidification. The measured isothermal solidification time and rate for transient liquid phase bonding of the Inconel 718 joint are in good agreement with the experimental and theoretical results.

Keywords

Transient liquid phase bonding isothermal solidification kinetics Inconel 718 differential scanning calorimetry

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References

Backman

Williams

. Advanced materials for aircraft engine applications. Science 1992; 255: 1082–1087.

Thejasree

Manikandan

Raju

, et al. Investigations on laser beam welded Inconel 718 weldments. Mater Today: Proc 2022; 68: 1757–1761.

Lertora

Mandolfino

Gambaro

. Mechanical behaviour of Inconel 718 thin-walled laser welded components for aircraft engines. Int J Aeros Eng 2014. doi:https://doi.org/10.1155/2014/721680

Agilan

Krishna

Manwatkar

, et al. Effect of welding processes (GTAW & EBW) and solutionizing temperature on micro-fissuring tendency in Inconel 718 welds. Mater Sci Forum 2012; 710: 603–607.

Rakesh

Davim

. Joining processes for dissimilar and advanced materials. New Delhi, India: Woodhead Publishing, 2021.

Davim

. Welding technology. Cham, Switzerland: Springer International Publishing, 2021.

Gupta

Davim

. Advanced welding and deforming. Amsterdam, Netherlands: Elsevier, 2021.

Cook

Sorensen

. Overview of transient liquid phase and partial transient liquid phase bonding. J Mater Sci 2011; 46: 5305–5323.

MacDonald

Eagar

. Transient liquid phase bonding. Annu Rev Mater Sci 1992; 22: 23–46.

10.

Zhou

Gale

North

. Modelling of transient liquid phase bonding. Int Mater Rev 1995; 40: 181–196.

11.

Ojo

Richards

Chaturvedi

. Isothermal solidification during transient liquid phase bonding of Inconel 738 superalloy. Sci Technol Weld Join 2004; 9: 532–540.

12.

Jalilian

Jahazi

Drew

RAL

. Microstructural evolution during transient liquid phase bonding of Inconel 617 using Ni–Si–B filler metal. Mater Sci Eng A 2006; 423: 269–281.

13.

Jalilvand

Omidvar

Shakeri

, et al. Microstructural evolution during transient liquid phase bonding of Inconel 738LC using AMS 4777 filler alloy. Mater Charact 2013; 75: 20–28.

14.

Pouranvari

Ekrami

Kokabi

. Solidification and solid state phenomena during TLP bonding of IN 718 superalloy using Ni–Si–B ternary filler alloy. J Alloys Compd 2013; 563: 143–149.

15.

Kuntz

Corbin

Zhou

. Quantifying metallurgical interactions in solid/liquid diffusion couples using differential scanning calorimetry. Acta Mater 2005; 53: 3071–3082.

16.

Kuntz

Zhou

Corbin

. A study of transient liquid-phase bonding of Ag-Cu using differential scanning calorimetry. Metall Mater Trans A 2006; 37: 2493–2504.

17.

Corbin

Winkler

Turriff

, et al. Analysis of fluxless, reactive brazing of Al alloys using differential scanning calorimetry. Metall Mater Trans A 2014; 45: 3907–3915.

18.

Turriff

Corbin

Kozdras

. Diffusional solidification phenomena in clad aluminum automotive braze sheet. Acta Mater 2010; 58: 1332–1341.

19.

Ruiz-Vargas

Siredey-Schwaller

Gey

, et al. Microstructure development during isothermal brazing of Ni/BNi-2 couples. J Mater Process Technol 2013; 213: 20–29.

20.

Moreau

Corbin

. Application of diffusion path analysis to understand the mechanisms of transient liquid-phase bonding in the Ni-Si-B system. Metall Mater Trans A 2019; 50: 5678–5688.

21.

Tung

Lim

Lai

. Solidification phenomena in nickel base brazes containing boron and silicon. Scr Mater 1996; 34: 763–769.

22.

Salmaliyan

Shamanian

. Formation mechanism of intermetallic components during dissimilar diffusion bonding of IN718/BNi-2/AISI 316 L by TLP process. Heat Mass Transf 2019; 55: 2083–2093.

23.

Tarai

Robi

Pal

. Synthesis of Ni-Cr-B-Si-Fe-based interlayer alloy for transient liquid phase bonding of Inconel 718 superalloy by mechanical alloying process. Int J Adv Manuf Technol 2020; 111: 2857–2875.

24.

Pouranvari

Ekrami

Kokabi

. Diffusion induced isothermal solidification during transient liquid phase bonding of cast IN 718 superalloy. Can Metall Q 2014; 53: 38–46.

25.

Niemann

Garrett

. Eutectic bonding of boron–aluminum structural components. II. Development and application of the process. Weld J (NY) 1974; 53: 351–360.

26.

Darken

Gurry

Bever

. Physical chemistry of metals. New York, USA: McGraw-Hill, 1953.

27.

Murray

Corbin

. Determining the kinetics of transient liquid phase bonding (TLPB) of Inconel 625/BNi-2 couples using differential scanning calorimetry. J Mater Process Technol 2017; 248: 92–102.