Baishun Yang1, Biao Li1,*
The International Conference on Computational & Experimental Engineering and Sciences, Vol.32, No.3, pp. 1-1, 2024, DOI:10.32604/icces.2024.011944
Abstract Hot corrosion behavior of GH4169 nickel-based superalloy coated with 95wt.%Na2SO4+5wt.%NaCl salt mixture at 650 ℃,800 ℃, and 950 ℃ were investigated by some material characterization methods. The Experimental results showed that hot corrosion kinetics followed a parabolic, linear and exponential laws at 650 ℃, 800 ℃, and 950 ℃ respectively. Notably, as the temperature ascended from 650 ℃ to over 800 ℃, the corrosion mechanisms underwent a transition from pit corrosion to uniform erosion, corresponding to low-temperature hot corrosion (LTHC) and high-temperature hot corrosion (HTHC). At 650 ℃, a large number of semi-ellipsoidal corrosion pits manifested More >
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