Creep Life Prediction of Ni-Base Superalloy Used in Advanced Gas Turbine Blades by Electrochemical Method
スポンサーリンク
概要
- 論文の詳細を見る
In order to develop a methodology for creep life assessment of directionally solidifed Ni-base superalloy CM247LC, commonly used in advanced gas turbine blades, changes in electrochemical property of the alloy caused by creep have been investigated. Experimental results on electrochemical polarization measurements revealed that the peak current densities "I_p" and "I_<pr>", which appeared at a specific potential during potentiodynamic polarization reactivation measurements in a dilute glyceregia solution, increased linearly with the life fraction at an early stage of creep life and were uniquely correlated with a newly proposed Arrhenius-type parameter "(t/t_r) exp (-Q_c/RT)". The creep life fraction can be nondestructively evaluated by electrochemical polarization measurements and the above parameter.
- 一般社団法人日本機械学会の論文
- 2000-04-15
著者
-
SHOJI Tetsuo
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University
-
Shoji Tetsuo
Fracture Research Institute Graduate School Of Engineering Tohoku University
-
KOMAZAKI Shin-ichi
Department of Materials Science and Engineering, Muroran Institute of Technology
-
Sato Minoru
New York Office, Tohoku Electric Power Co., Inc.
-
Shoji Tetsuo
Fracture And Reliability Research Institute Tohoku University
-
Sato Minoru
New York Office Tohoku Electric Power Co. Inc.
-
Komazaki Shin-ichi
Department Of Machine Intelligence And Systems Engineering Akita Prefectural University
関連論文
- Quantitative NDE of Surface Cracks in Ceramic Materials by means of a High-Frequency Electromagnetic Wave
- A Study on Development of Safety Monitoring System for Structure Using a Laser and 2-D Arrayed Photo Sensors(Optical Method 2)
- Development of Magnetic Camera Using 2-D Arrayed Hall Elements(NDE2)
- Effect of Temperature on the Microscopic Appearance of the Fracture Surface of Alloy 690TT under SSRT Testing(Macro-, Micro-, Meso-, and Nano-scopic Strength of Materials Relating to Microstructures)
- Mechanistic Understanding for Degraded Thermal Barrier Coatings
- Evaluation of Susceptibility to Hydrogen Embrittlement of 7075 Aluminum Alloy by Hydrogen Addition Using Flax-Treatment Method
- Thermal Aging Embrittlement of Service-Exposed Udimet 520 Gas Turbine Blade(Student Poster Session)
- Theoretical Modeling and Experimental Study of Thermal Barrier Coatings
- B402 CHARACTERIZATION OF FRACTURE MECHANICS OF HIGH SPEED TRAIN WHEELSETS DEPENDING ON AGING EFFECTS AND ON THE LOCATION EXAMINED
- Nondestructive Evaluation of High-Temperature Oxidation Behaviour in Thermal Barrier Coatings(High Temperature Materials)
- High Temperature Oxidation Behavior of the Interface Between Thermal Barrier Coatings and MCrAlY Bond Coatings(High Temperature Materials)
- NDE of Fatigue Damage by Induced Current Focusing Potential Drop(NDE4)
- Cracking Paths During Initiation of Environmentally Assisted Cracking in High Temperature Water
- Observation of the Oxide Film Formed in High Temperature Water by Applying Electroless Ni-P Coating
- Damage Evaluation of a Welded Joint in a Long-term Service-exposed Boiler by Using a Small Punch Creep Test
- Environmentally Assisted Cracking of Simulated Alloys for Grain Boundaries of Irradiated 304 Stainless Steel in High Temperature Water Environments(Student Poster Session)
- Creep Life Prediction of Ni-Base Superalloy Used in Advanced Gas Turbine Blades by Electrochemical Method
- The Crack Tip Solution Chemistry in Sensitized Stainless Steel in Simulated Boiling Water Reactor Water Studied Using a Microsampling Technique
- Mechanical and High Temperature Oxidation Properties of Cold Sprayed CoNiCrAlY Coatings for Thermal Barrier Coating
- Thermal Aging Embrittlement of Tungsten-Alloyed 9% Cr Ferritic Steels and Electrochemical Evaluation
- Analysis of Crack Growth Kinetics and Crack Tip Strain Rates of Sensitized Type 304 Stainless Steel in Simulated Boiling Water Reactor Environment : Experiments and Theory(EAC2)
- Change in Work Function of Fatigue Damaged Surface and Its Relevance to Fatigue Failure(Student Poster Session)
- SCC Growth Behavior of Surface Cracked Specimens in High Temperature Water(EAC2)
- In-situ Measurement of Contact Electric Resistance of Oxide Films on Sensitised 304 Stainless Steel during Slow Strain Rate Test in High Temperature Water(EAC2)
- Estimation of Crack Detectability of Remotely Induced Current Potential Drop Technique Based on POD Curve(NDE4)
- Effect of Yield Strength on Stress Corrosion Crack Growth of Stainless Steel in High Temperature Water Environment(EAC2)
- The In-situ Measurement of a Local Chemical Reaction by Raman Spectroscopy : Time dependent enrichment of chloride ions on the surface of 304L stainless steel(EAC1)
- In-situ eddy current monitoring of structural components in nuclear power plants
- Small Punch Creep Behavior of Service-Exposed SUS 316 HTB Superheater Boiler Tube(High Temperature Materials)
- Crack Detection by Means of Electromagnetic Field Measurement with Micro Antennas(NDE4)
- Size Effect of Copper Precipitation Particles on Electrochemical Nanoscopic Galvanic Behavior in Cu-Added Ultra Low Carbon Steel
- Influence of Pre-Aging on Creep Rupture Strength of Tungsten Alloyed 9%Cr Ferritic Steel and Creep Damage Evaluation by Electrochemical Method(Special Issue on Creep and Fatigue at Elevated Temperatures)
- SB-06-5(036) Influence of Pre-Aging on Creep Rupture Strength of Tungsten Alloyed 9%Cr Ferritic Steel and Creep Damage Evaluation by Electrochemical Method(Changes in Microstructure 1)
- Effect of Applied Cathodic Potential on Susceptibility to Hydrogen Embrittlement in High Strength Low Alloy Steel
- Effect of Morphology of Copper Precipitation Particles on Hydrogen Embrittlement Behavior in Cu-Added Ultra Low Carbon Steel
- The Crack Tip Solution Chemistry in Sensitized Stainless Steel in Simulated Boiling Water Reactor Water Studied Using a Microsampling Technique