Thermal oxidation behavior of ceramic-coated Ni–Cr-base superalloys

2008 ◽  
Vol 202 (22-23) ◽  
pp. 5625-5628 ◽  
Author(s):  
H. Cho ◽  
D.M. Lee ◽  
J.H. Lee ◽  
K.H. Bang ◽  
B.W. Lee
2012 ◽  
Vol 486 ◽  
pp. 400-405 ◽  
Author(s):  
K. Tuchida ◽  
Kessaraporn Wathanyu ◽  
S. Surinphong

In this paper, the thermal oxidation behavior of TiAlCrSiN and AlCrTiN films coated on hastelloyX substrate, typically used for fuel nozzle in gas turbine engine application, have been studied. The thermal oxidation behavior at 950, 1050 and 1150 °C in controlled atmosphere were investigated. The surface appearance, microstructure, chemical composition and adhesion of films were investigated. The thermal oxidations were observed in all testing conditions showing oxide films at the surface with thicker oxide film at higher temperature. However, spalling of oxide scales was found in both coated and uncoated specimens at 1150°C suggesting the maximum working temperature of < 1150 °C for turbine engine applications. The critical loads corresponding to the full delamination of the thermal oxidation coated specimens were found to be higher than the non-thermal oxidation specimens. The effect of thermal oxidation on damage patterns during scratch tests, i.e. less chipping and cracking for thermal oxidation specimen, were also observed.


2009 ◽  
Vol 60 (1) ◽  
pp. 56-59 ◽  
Author(s):  
Qianku Hu ◽  
Qinghua Wu ◽  
Guang Sun ◽  
Xueling Xing ◽  
Julong He ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 72331-72339 ◽  
Author(s):  
Wenzhi Huang ◽  
Haifeng Cheng ◽  
Yongjiang Zhou

Stabilized zirconia/Al coatings were deposited on polymer matrix composites (PMCs) via plasma spraying, and exhibited good thermal oxidation resistance.


2021 ◽  
pp. 1-8
Author(s):  
Xiangming Zeng ◽  
Peng Pan ◽  
Hao Qi ◽  
Zuming He ◽  
Jiangbin Su

2018 ◽  
Vol 100 ◽  
pp. 9-19 ◽  
Author(s):  
J. Jayaraj ◽  
Pramote Thirathipviwat ◽  
Junhee Han ◽  
Annett Gebert

2009 ◽  
Vol 94 (8) ◽  
pp. 083108 ◽  
Author(s):  
H. Cui ◽  
Y. Sun ◽  
G. Z. Yang ◽  
G. W. Yang ◽  
C. X. Wang

2017 ◽  
Vol 325 ◽  
pp. 289-298 ◽  
Author(s):  
Jun Liu ◽  
Sergey Suslov ◽  
Shengxi Li ◽  
Haifeng Qin ◽  
Zhencheng Ren ◽  
...  

2001 ◽  
Vol 08 (05) ◽  
pp. 565-568 ◽  
Author(s):  
Y. ZHU ◽  
P. P. ONG

Three kinds of nanosilicon crystallites were prepared by different methods in high vacuum. All of them were composed of tiny silicon crystallites which were initially only mildly oxidized before annealing, but their behavior upon annealing in vacuum differed substantially depending on the environment in which they resided. XPS analyses revealed that the unencapsulated nanoparticles tended to oxidize quite quickly, whereas the nanoparticles sandwiched between layers of Al 2 O 3 matrices were oxidized rather slowly even under intense annealing. In the zinc/silicon nanocrystalline mixture, the oxidation of the Si 0 state was even faster than that of the intermediate Si +1,+2,+3 states. Both the stability and formation processes of the Si - O bonds in the partially oxidized states differed considerably with different environmental surroundings. However, in all cases, the Si - O bonds of the fully oxidized Si +4 state remained the most stable, to which the less oxidized states tend to gravitate eventually.


Sign in / Sign up

Export Citation Format

Share Document