Publication Type : Conference Proceedings
Publisher : IOP Conference Series: Materials Science and Engineering
Source : Material Science and Engineering, IOP Conference Series: Materials Science and Engineering, Volume 912 Pg. no. 032060, 2020
Campus : Chennai
School : School of Engineering
Center : Research & Projects
Department : Mechanical Engineering
Year : 2020
Abstract : The effect of hot corrosion tendency of Hastelloy X weldment made by pulsed current tungsten inert gas (PCTIG) and constant current tungsten inert gas (CCTIG) welding has been studied. The welding has been done using ERNiCrCoMo-1 (Mo-1) filler. The hot corrosion demeanour of the Hastelloy X has studied in two different molten salt circumstance such as MS-1 (molten salt-1) (75Na2SO4 + 20V2O5 + 5NaCl) and MS-2 (molten salt-2) (75Na2SO4 + 25V2O5) for 25 cycles (one hour in each cycle) at 820 C. The MS-1 substrate shows the maximum weight gain compared to MS-2. Also, the largest parabolic constant (Kp) is observed for PCTIG MS-1. The existence of NaCl in MS-1 has improved the corrosion rate by generating more spallation and exfoliation on the surface. The trends of hot corrosion resistance are following the order of, CCTIG Mo-1 MS-1
Cite this Research Publication : Sathishkumar M, Subramani P, Natesh M, Venkateshkannan M, Arivazhagan N, Manikandan M. “Effect of Hot Corrosion Demeanour on Aerospace-Grade Hastelloy X Made by Pulsed and Constant Current Arc Welding in Molten Salt at 820 °C”, Material Science and Engineering, IOP Conference Series: Materials Science and Engineering, Volume 912, Pg. no. 032060, 2020