Microstructure of diffusion aluminide coatings on Ti-base alloy IMI-834 and their cyclic oxidation behaviour at 650 °C

2004 ◽  
Vol 367 (1-2) ◽  
pp. 225-233 ◽  
Author(s):  
D.K. Das ◽  
S.P. Trivedi
Keyword(s):  
Cyclic Oxidation ◽  
Base Alloy ◽  
Oxidation Behaviour ◽  
Aluminide Coatings ◽  
Imi 834

Preparation and cyclic oxidation behaviour of Re doped aluminide coatings on a Ni-based single crystal superalloy

2020 ◽  
Vol 164 ◽  
pp. 108354 ◽  
Author(s):  
W. Li ◽  
J. Sun ◽  
S.B. Liu ◽  
Y.D. Liu ◽  
L.B. Fu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Oxidation Behaviour ◽  
Single Crystal Superalloy ◽  
Aluminide Coatings

Microstructural aspects of plain aluminide and Pt-aluminide coatings on Ti-base alloy IMI-834

2005 ◽  
Vol 13 (10) ◽  
pp. 1122-1133 ◽  
Author(s):  
S.P. Trivedi ◽  
D.K. Das
Keyword(s):  
Base Alloy ◽  
Aluminide Coatings ◽  
Imi 834

The isothermal and cyclic oxidation behaviour of two Co modified aluminide coatings at high temperature

2014 ◽  
Vol 84 ◽  
pp. 42-53 ◽  
Author(s):  
Q.X. Fan ◽  
X. Peng ◽  
H.J. Yu ◽  
S.M. Jiang ◽  
J. Gong ◽  
...  
Keyword(s):  
High Temperature ◽  
Cyclic Oxidation ◽  
Oxidation Behaviour ◽  
Aluminide Coatings

STUDY ON CYCLIC OXIDATION RESISTANCE OF HIGH NIOBIUM CONTAINING TiAl BASE ALLOY WITH ERBIUM

2013 ◽  
Vol 49 (11) ◽  
pp. 1369 ◽  
Author(s):  
Ziqi GONG ◽  
Ziyong CHEN ◽  
Lihua CHAI ◽  
Zhilei XIANG ◽  
Zuoren NIE
Keyword(s):  
Oxidation Resistance ◽  
Cyclic Oxidation ◽  
Base Alloy

Investigation on the effect of Si addition to the high temperature cyclic oxidation behaviour of β-NiAlDy alloy used in advanced jet engine applications

2020 ◽  
Author(s):  
Rajasekaran Saminathan ◽  
Yahya Ali Fageehi ◽  
K.B. Ramalingam ◽  
D. Vidhya ◽  
D. Bhuvaneshwari ◽  
...  
Keyword(s):  
High Temperature ◽  
Cyclic Oxidation ◽  
Oxidation Behaviour ◽  
Jet Engine ◽  
Si Addition

Effect of substrate alloy composition on the oxidation behaviour and degradation of aluminide coatings on two Ni base superalloys

2020 ◽  
Vol 167 ◽  
pp. 108494 ◽  
Author(s):  
W. Leng ◽  
R. Pillai ◽  
D. Naumenko ◽  
T. Galiullin ◽  
W.J. Quadakkers
Keyword(s):  
Alloy Composition ◽  
Oxidation Behaviour ◽  
Aluminide Coatings ◽  
Substrate Alloy

Difference oxidation behaviors of Ni8Al and Ni25Cr coatings in air with water vapor at 650∘

2021 ◽  
pp. 2150274
Author(s):  
Dingjun Li ◽  
Wenlang Huang ◽  
Xiaohu Yuan ◽  
Taihong Huang ◽  
Chao Li ◽  
...  
Keyword(s):  
Water Vapor ◽  
High Velocity ◽  
Cyclic Oxidation ◽  
Oxidation Behaviour ◽  
Fuel Spray ◽  
High Velocity Oxygen Fuel ◽  
Service Environment ◽  
Generator Unit ◽  
Oxygen Fuel ◽  
Oxidation Behaviors

The oxidation behaviour of Ni8Al and Ni25Cr coatings produced by high velocity oxygen fuel spray (HVOF) which were deposited on Fe-based alloys (CB2) was investigated. We simulated the service environment of the steam generator unit, and put the samples in a thermostatic tube furnace at 650[Formula: see text] in air with 20 wt.% water vapor for 1000 hours of cyclic oxidation. The formation mechanism are explained using SEM, XRD, and EDX. There were no spallations and obvious cracks in both coatings. Ni25Cr coating generated a better protection oxides scale than that scale on Ni8Al. The behavior and mechanism of the oxide scale formation had an important influence in coatings and we have discussed these phenomenons in the study.

Cyclic-Oxidation of RexOy-Modified Aluminide Coating

2012 ◽  
Vol 557-559 ◽  
pp. 1721-1726
Author(s):  
Yong Dong Wang ◽  
Yue Bo Zhou
Keyword(s):  
Composite Film ◽  
Cyclic Oxidation ◽  
Aluminide Coating ◽  
Pack Cementation ◽  
Reactive Element ◽  
Aluminide Coatings ◽  
Oxidation In Air

Reactive reactive element oxide RexOy (Re=Ce, Y)-modified aluminide coatings were developed by aluminizing the as-codeposited Ni-RexOy composite film using pack cementation method at 1100°C for 4 h. By comparison, aluminizing was also performed with the same condition on an as-deposited Ni film without RexOy particles. SEM/EDAX and TEM results indicated that the co-deposited CeO2 or Y2O3 particls were homogeneously dispersed in the finer-grain nanocrystalline Ni grains. The cyclic oxidation in air at 900°C indicated that the RexOy -modified aluminide coatings were profoundly spallation resistance as compared to the RexOy -free coatings due to the formation of a continuous adherent α-Al2O3 scale.

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