A study of the mechanism of internal sulfidation-internal oxidation during hot corrosion of Ni-base alloys

1987 ◽  
Vol 27 (5-6) ◽  
pp. 253-265 ◽  
Author(s):  
Zhu Rizhang ◽  
Guo Manjiou ◽  
Zuo Yu
Keyword(s):  
Internal Oxidation ◽  
Hot Corrosion ◽  
Internal Sulfidation

HOT CORROSION OF CERIA-YTTRIA STABILIZED ZIRCONIA PLASMA SPRAYED THERMAL BARRIER COATING BY EUTECTIC VANDIUM PENTAOXIDE-SODIUM SULFATE

2018 ◽  
Vol 18 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Mohammed J Kadhim ◽  
Mohammed H Hafiz ◽  
Maryam A Ali Bash
Keyword(s):  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Monoclinic Phase ◽  
Volume Fraction ◽  
High Volume ◽  
Thermal Barrier ◽  
Air Plasma ◽  
Plan View ◽  
Barrier Coating ◽  
Plasma Sprayed

The high temperature corrosion behavior of thermal barrier coating (TBC) systemconsisting of IN-738 LC superalloy substrate, air plasma sprayed Ni24.5Cr6Al0.4Y (wt%)bond coat and air plasma sprayed ZrO2-20 wt% ceria-3.6 wt% yttria (CYSZ) ceramic coatwere characterized. The upper surfaces of CYSZ covered with 30 mg/cm2 , mixed 45 wt%Na2SO4-55 wt% V2O5 salt were exposed at different temperatures from 800 to 1000 oC andinteraction times from 1 up to 8 h. The upper surface plan view of the coatings wereidentified for topography, roughness, chemical composition, phases and reaction productsusing scanning electron microscopy, energy dispersive spectroscopy, talysurf, and X-raydiffraction. XRD analyses of the plasma sprayed coatings after hot corrosion confirmed thephase transformation of nontransformable tetragonal (t') into monoclinic phase, presence ofYVO4 and CeVO4 products. Analysis of the hot corrosion CYSZ coating confirmed theformation of high volume fraction of YVO4, with low volume fractions of CeOV4 and CeO2.The formation of these compounds were combined with formation of monoclinic phase (m)from transformation of nontransformable tetragonal phase (t').

Influence of Carbon on the Hot Corrosion Behaviour of Fe-Base Alloys

1989 ◽  
Vol 30 (9) ◽  
pp. 707-716 ◽  
Author(s):  
A. U. Malik ◽  
M. Ishaq ◽  
Sharif Ahmad ◽  
Sultan Ahmad
Keyword(s):  
Hot Corrosion ◽  
Corrosion Behaviour

ROLLED ALLOYS HR-120

Alloy Digest ◽  
2000 ◽  
Vol 49 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Thermal Processing ◽  
Hot Corrosion ◽  
Heat Treating ◽  
Temperature Performance

Abstract HR-120 alloy is an alloy designed for thermal processing. It possesses excellent strength, oxidizing hot corrosion resistance, good carburization resistance, and oxidation resistance through 1093 deg C (2000 deg F). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Ni-561. Producer or source: Rolled Alloys.

Effect of laser shock peening on microstructure and hot corrosion of TC11 alloy

2018 ◽  
Vol 335 ◽  
pp. 32-40 ◽  
Author(s):  
Zhaopeng Tong ◽  
Xudong Ren ◽  
Yunpeng Ren ◽  
Fengze Dai ◽  
Yunxia Ye ◽  
...  
Keyword(s):  
Hot Corrosion ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening

Hot corrosion damage mechanism of Ti6Al4V alloy in marine environment

Vacuum ◽  
2021 ◽  
pp. 110350
Author(s):  
Hulin Wu ◽  
Ping Gong ◽  
Suying Hu ◽  
Lin Xiang ◽  
Enlei Wang ◽  
...  
Keyword(s):  
Marine Environment ◽  
Hot Corrosion ◽  
Corrosion Damage ◽  
Damage Mechanism ◽  
Ti6al4v Alloy

scholarly journals Oxidation and hot corrosion behaviors of Nb−Si based ultrahigh temperature alloys at 900 °C

2021 ◽  
Vol 31 (1) ◽  
pp. 207-221
Author(s):  
Jia-hua HE ◽  
Xi-ping GUO ◽  
Yan-qiang QIAO
Keyword(s):  
Hot Corrosion ◽  
Corrosion Behaviors ◽  
Ultrahigh Temperature

Microstructure Characterization and Hot Corrosion Mechanism of As-cast and Heat Treated High Nb Containing TiAl alloy

2021 ◽  
pp. 109399
Author(s):  
Zhiping Sun ◽  
Wenqing Wu ◽  
Yongnan Chen ◽  
Zhanwei Yuan ◽  
Yongshuai Zhang ◽  
...  
Keyword(s):  
Hot Corrosion ◽  
Tial Alloy ◽  
Microstructure Characterization ◽  
Corrosion Mechanism ◽  
Heat Treated

Chlorine based hot corrosion study of cold sprayed NiCrAlY coating

2014 ◽  
Vol 30 (6) ◽  
pp. 422-431 ◽  
Author(s):  
S. B. S. Kalsi ◽  
T. S. Sidhu ◽  
H. Singh
Keyword(s):  
Hot Corrosion ◽  
Corrosion Study ◽  
Nicraly Coating

Estimation of risk of hot corrosion in gas turbines by thermodynamic modelling

2006 ◽  
Vol 1 (4) ◽  
pp. 223-226 ◽  
Author(s):  
M. Mu¨ller
Keyword(s):  
Hot Corrosion ◽  
Gas Turbines ◽  
Thermodynamic Modelling ◽  
Estimation Of Risk
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