Role of tantalum in the hot corrosion of a Ni-base single crystal superalloy

2015 ◽  
Vol 98 ◽  
pp. 585-591 ◽  
Author(s):  
J.X. Chang ◽  
D. Wang ◽  
T. Liu ◽  
G. Zhang ◽  
L.H. Lou ◽  
...  
2018 ◽  
Vol 117 ◽  
pp. 13-20 ◽  
Author(s):  
L. Brooking ◽  
S. Gray ◽  
J. Sumner ◽  
J.R. Nicholls ◽  
N.J. Simms

2020 ◽  
Vol 58 ◽  
pp. 63-72 ◽  
Author(s):  
Jingchen Li ◽  
Liangliang Wei ◽  
Jian He ◽  
Hao Chen ◽  
Hongbo Guo

2007 ◽  
Vol 22 (1) ◽  
pp. 206-216 ◽  
Author(s):  
Y.N. Wu ◽  
A. Yamaguchi ◽  
H. Murakami ◽  
S. Kuroda

Platinum-iridium films (Ir = 0, 32, 46, 83, 100 at.%) were deposited on the nickel-base single crystal superalloy through magnetron sputtering. After annealing and aluminizing, the Pt-Ir modified aluminide coatings mainly consisted of PtAl2 and β-(Ni,Pt,Ir)Al phases. Hot corrosion resistance of Pt-Ir modified aluminide coatings with the different Ir contents were evaluated by exposure at 1173 K in the presence of the 90%Na2SO4 + 10%NaCl (wt%) salt deposits. The corrosion kinetics curves of the specimens were plotted up to 100 h heating time. The phase constitution, morphology of corrosion products, and element concentrations along the cross section were also measured. The lowest mass gain (0.299 mg/cm2, after 100 h) was observed for Pt-46Ir aluminide coating because the dense and continuous protective Al2O3 scale formed. Phase transformation from β-(Ni,Pt)Al to γ′-(Ni,Pt)3Al, characteristics of the scale, and protection by Pt/Ir enriched layer had the important effects on the hot corrosion behavior of modified aluminide coatings.


2015 ◽  
Vol 641 ◽  
pp. 228-233 ◽  
Author(s):  
T.Z. Xin ◽  
S. Tang ◽  
F. Ji ◽  
L.K. Ning ◽  
Z. Zheng

2019 ◽  
Vol 149 ◽  
pp. 207-217 ◽  
Author(s):  
J. Sun ◽  
S.B. Liu ◽  
W. Li ◽  
H.J. Yu ◽  
S.M. Jiang ◽  
...  

2020 ◽  
Vol 395 ◽  
pp. 125938 ◽  
Author(s):  
Y.F. Yang ◽  
P. Ren ◽  
Z.B. Bao ◽  
S.L. Zhu ◽  
F.H. Wang ◽  
...  

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