Studies on Susceptibility of Alloy 617 to Solidification Cracking

Abstract:

Ni based super alloy 617 is widely used in transition liners in both aircraft and land-based gas turbines, power plant applications because of its high temperature strength, oxidation resistance and creep properties. Ni based alloys are highly susceptible to hot cracking like solidification and liquation racking issues. In this present work, the susceptibility of alloy 617 to solidification cracking is studied based on the varestraint test. Results of this weldability test proved that in addition to the solidification cracking susceptibility alloy 617 is prone to liquation cracking also. Keywords: Varestraint test, Alloy 617, Solidification cracking, Liquidation cracking.

• Periodical: Materials Science Forum (Volume 969)
• Pages: 34-40
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.969.34
• Online since: August 2019
• Authors: R. Ravibharath*, K. Devakumaran, V. Muthupandi
• Keywords: Alloy 617, Liquidation Cracking, Solidification Cracking, Varestraint Test

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