Methods to increase computational efficiency of CALPHAD-based thermodynamic and kinetic models employed in describing high temperature material degradation

Calphad ◽  
2016 ◽  
Vol 53 ◽  
pp. 62-71 ◽  
Author(s):  
R. Pillai ◽  
T. Galiullin ◽  
A. Chyrkin ◽  
W.J. Quadakkers
Keyword(s):  
High Temperature ◽  
Computational Efficiency ◽  
Kinetic Models ◽  
Material Degradation ◽  
High Temperature Material

Standardization of Grain Boundary Etching Test Method for Evaluating High Temperature Material Degradation

1991 ◽  
Vol 51-52 ◽  
pp. 247-252 ◽  
Author(s):  
Fumio Nogata ◽  
Koichi Seo ◽  
Se Hi Chung ◽  
Jung Ju Lee ◽  
H. Takahashi ◽  
...  
Keyword(s):  
High Temperature ◽  
Grain Boundary ◽  
Test Method ◽  
Material Degradation ◽  
High Temperature Material

Current status of the high-temperature kinetic models of silane: Part II. Oxidation

2020 ◽  
Author(s):  
Karl P. Chatelain ◽  
Yizhuo He ◽  
Sandra Javoy ◽  
Rémy Mével ◽  
Eric L. Petersen ◽  
...  
Keyword(s):  
High Temperature ◽  
Kinetic Models ◽  
Current Status

Effects of Thermal Exposure on Microstructure and Mechanical Properties of Ni Based Superalloy GTD111

2011 ◽  
Vol 275 ◽  
pp. 31-34 ◽  
Author(s):  
Han Sang Lee ◽  
Keun Bong Yoo ◽  
Doo Soo Kim ◽  
Jae Hoon Kim
Keyword(s):  
High Temperature ◽  
Gas Turbine ◽  
Operating Temperature ◽  
Rupture Strength ◽  
Mechanical Test ◽  
Thermal Exposure ◽  
Creep Rupture Strength ◽  
Material Degradation ◽  
Temperature Dependent ◽  
Hot Gas

The rotating components in the hot sections of land-based gas turbine are exposed to severe environment during several ten thousand hours at above 1100 oC operating temperature. The failure mechanism of the hot gas components would be accompanied by material degradation in the properties of high temperature and creep rupture strength. Many hot gas components in gas turbine are made of Ni-based superalloy because of their high temperature performance. In this work, we surveyed the time and temperature dependent degradation of Ni-based superalloy. We prepared the specimens from GTD111 that are exposed at 871 oC and 982 oC in 1,000 ~ 10,000 hours. We carried out the mechanical test and microstructural observation.

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