Prediction of Precipitation Sequences within Grains in 18Cr-8Ni Austenitic Steel by Using System Free Energy Method
スポンサーリンク
概要
- 論文の詳細を見る
The applicability of theoretical energy analysis to the evolution of microstructures in heat-resistant steels was explored by using the system free energy method to predict the precipitation of M23C6 and σ phase within grains in 18Cr–8Ni austenitic steels. The chemical free energy of Fe–C–Cr–Ni quaternary steel and the interfacial and elastic strain energies between austenitic (γ) matrix and the M23C6 and σ phase were estimated for the system free energy of microstructures wherein coherent or incoherent M23C6 and the incoherent σ phase precipitated within γ grains. By identifying the minimum-energy path through a determination of system free energy hierarchies, the precipitation initiation curves of precipitates in Fe–0.07C–18.95Cr–9.57Ni steel for temperatures between 823–973 K were theoretically predicted. The calculated curves agreed well with experimental results for Type 304H austenitic steels; this suggests that the system free energy method is suitable for predicting the evolution of microstructures in heat-resistant steels.
- 社団法人 日本鉄鋼協会の論文
- 2009-03-15
著者
-
Abe Fujio
Structural Metals Center, National Institute for Materials Science
-
Abe F
National Institute For Materials Science
-
ABE Fujio
National Institute for Materials Science
-
Abe F
Steel Research Center National Institute For Materials Seienee
-
Abe Fujio
National Institute Of Materials Science
-
Abe Fujio
Frontier Research Center For Structural Materials National Research Institute For Metals
-
Abe Fujio
Steel Research Center (src) National Institute For Materials Science
-
Toda Yoshiaki
Steel Research Center National Institute For Materials Seienee
-
Toda Yoshiaki
Structural Metals Center National Institute For Materials Science
-
Abe Fujio
Structural Metals Center National Institute For Materials Science
-
Abe Fujio
Steel Research Center National Institute For Materials Science
-
Abe Fujio
Tsukuba Laboratories National Research Institute For Metals
関連論文
- Characterization of Mechanically Alloyed Powders for High-Cr Oxide Dispersion Strengthened Ferritic Steel
- Creep Fracture Analysis of W Strengthened High Cr Steel Weldment
- Effects of Zr Addition on the Microstructure of 14%Cr4%Al ODS Ferritic Steels
- SB-07-2(070) Assessment of Material Degradation Based on Microstructural Evolution in Type 304H Stainless Steel During Long-Term Creep(Changes in Microstructure 2)
- Effects of Ni and Heat Treatment on Long-term Creep Strength of Precipitation Strengthened 15Cr Ferritic Heat Resistant Steels
- Influence of Chemical Composition and Heat Treatment Condition on Impact Toughness of 15Cr Ferritic Creep Resistant Steel
- Improvement in Creep Strength of Precipitation Strengthened 15Cr Ferritic Steel by Controlling Carbon and Nitrogen Contents
- Effects of W and Co on Long-term Creep Strength of Precipitation Strengthened 15Cr Ferritic Heat Resistant Steels
- D311 IMPROVEMENT IN CREEP STRENGTH OF PRECIPITATION STRENGTHENED 15CR FERRITIC STEEL BY CONTROLLING OF CARBON AND NITROGEN CONTENTS
- Development of high strength 15Cr creep resistant steel for low emission power plant
- Effects of W and Co on the Microstructure and Creep Strength of the Precipitation Strengthened 15Cr Ferritic Steels(Special Issue on Creep and Fatigue at Elevated Temperatures)
- SB-08-3(037) Effects of W and Co on the Microstructure and Creep Strength of the Precipitation Strengthened 15Cr Ferritic Steels(Advanced Heat Resistant Steels)
- SB-08-2(034) Development of Precipitation Strengthened 15Cr Ferritic Creep Resistant Steel(Advanced Heat Resistant Steels)
- SB-06-4(038) Changes in Precipitates of Modified 9Cr-1Mo Steel During Long-term Creep Deformation at 873K and 923K(Changes in Microstructure 1)
- Development of High Strengh 15Cr Ferritic Creep Resistant Steel with Addition of Tungsten and Cobalt
- Development of High Strength 15Cr Ferritic Creep Resistant Steel
- Phase Equilibrium between Austenite and MX Carbonitride in a 9Cr-1Mo-V-Nb Steel
- Effects of Alloying Elements on Creep Properties of 9Cr-3.3W-0.5Pd-V, Nb, N, B Steels
- Microstructural Evaluation of C-free Martensitic Alloys at High Temperatures
- Behaviour of Mn and Si in the Spray Powders during Steam Oxidation of Ni-Cr Thermal Spray Coatings
- REMAINING LIFE PREDICTION BY THE ISO-STRESS METHOD OF BOILER TUBES AFTER PROLONGED SERVICE
- Degradation of Creep Strength in Welded Joint of 9%Cr Steel
- Effect of Pyrocarbon Pre-Coating on the Mechanical Properties of CVI Carbon Fiber/Sic Composites
- Influence of Heat Treatment on Formation Behavior of Boron Nitride Inclusions in P122 Heat Resistant Steel
- Characterization of Mechanically Alloyed Powders for High-Cr Oxide Dispersion Strengthened Ferritic Steel
- SB-06-3(057) Change in Tensile and Creep Properties of 2.25Cr-1Mo Steel by Prolonged Exposure in Plant(Changes in Microstructure 1)
- Prediction of Precipitation Sequences within Grains in 18Cr-8Ni Austenitic Steel by Using System Free Energy Method
- Creep Deformation and the Corresponding Microstructural Evolution in High-Cr Ferritic Steels
- Creep Deformation and the Corresponding Microstructural Evolution in High-Cr Ferritic Steels
- Creep properties affected by morphology of MX in high-Cr ferritic steels
- Effect of Co Addition on Microstructure in High Cr Ferritic Steels
- Effect of Heat Treatment on Precipitation Kinetics in High-Cr Ferritic Steels
- SB-09-1(051) An Improvement on Creep Characteristics in Carbon Free Martensitic Alloys(Advanced Heat Resistant Steels)
- Creep Properties affected by Morphology of MX in High-Cr Ferritic Steels
- Two-phase Separation of Primary MX Carbonitride during Tempering in Creep Resistant 9Cr1MoVNb Steel
- Improved Utilization of Added B in 9Cr Heat-Resistant Steels Containing W
- Improved Utilization of Added B in 9Cr Heat-Resistant Steels Containing W
- Steam Oxidation Studies on 50Ni-50Cr HVOF Coatings on 9Cr-1Mo Steel : Change in Structure and Morphology across the Coating/Substrate Interface
- D312 INFLUENCE OF CHEMICAL COMPOSITION AND HEAT TREATMENT CONDITION ON IMPACT TOUGHNESS OF 15CR FERRITIC CREEP RESISTANT STEEL
- Gas Contamination due to Milling Atmospheres of Mechanical Alloying and Its Effect on Impact Strength
- Steam Oxidation Resistance of Ni-Cr Thermal Spray Coatings on 9Cr-1Mo Steel. Part 2 : 50Ni-50Cr
- Steam Oxidation Resistance of Ni-Cr Thermal Spray Coatings on 9Cr-1Mo Steel. Part 1 : 80Ni-20Cr
- Effect of Nitrogen Content on Microstructural Aspects and Creep Behavior in Extremely low Carbon 9Cr Heat-resistant Steel
- Development of Reduced-Activation Martensitic 9Cr Steels for Fusion Reactor
- Kinetics of Carbide Precipitation during Creep and Its Effect on Creep Rate of 10Cr-30Mn Austenitic Steels (Special Issue on Current Topics in Diffusional Phase Transformations)
- Precipitation of Carbides and Alpha-Tungsten in Ni-Cr-W Superalloys at 1,000℃
- Impurities and Evaluation of Induced Activity of SiC Composites Prepared with Chemical Vapor Infiltration.