Effect of Heat Treatment on Precipitation Kinetics in High-Cr Ferritic Steels
スポンサーリンク
概要
- 論文の詳細を見る
Precipitation strengthening is important to improve creep strength of heat resisting steels at elevated temperatures. Especially, in the high-Cr ferritic steels recently developed for Ultra Super Critical Power Plants, precipitation behavior is complicated and should be clarified because the correlation between various strengthening factors are still not well understood. In this study, we focus on the change in precipitation behavior of MX type carbonitrides in model steels with different heat treatment conditions.It is found that dominant precipitation behavior has been changed with cooling rate from normalization temperature before tempering and better creep properties have been obtained in the steel quenched rather than in the one air-cooled. It is confirmed that precipitation of M23C6 is suppressed and total fraction of MX is relatively increased by the quenching procedure. It is thought that better creep resistance is mainly due to fine distribution of MX that is achieved by suppressing typical co-precipitation of MX such as Nb(C, N)-VN during cooling after normalization and tempering.
- 社団法人 日本鉄鋼協会の論文
- 2002-07-15
著者
-
Abe F
National Institute For Materials Science
-
ABE Fujio
National Institute for Materials Science
-
Yamada K
Nagoya Univ. Nagoya Jpn
-
YAMADA Katsumi
NKK
-
IGARASHI Masaaki
Sumitomo Metal Industries, Ltd.
-
MUNEKI Seiichi
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
-
Abe Fujio
Structural Metals Center National Institute For Materials Science
-
Igarashi Masaaki
Sumitomo Metal Industries Ltd.
-
Abe Fujio
Steel Research Center National Institute For Materials Science
-
Abe Fujio
Tsukuba Laboratories National Research Institute For Metals
関連論文
- 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
- 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)
- An Asymptotic Regression Curve for Describing the Emergence Pattern of the Azuki Bean Weevil, Callosobruchus chinensis L. (Coleoptera : Bruchidae)
- 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
- Improved Utilization of Added B in 9Cr Heat-Resistant Steels Containing W
- Improved Utilization of Added B in 9Cr Heat-Resistant Steels Containing W
- High Temperature Strength and Ductility of β/γ'/γ Multiphase Alloys in Ni-Al-Cr System
- Steam Oxidation Studies on 50Ni-50Cr HVOF Coatings on 9Cr-1Mo Steel : Change in Structure and Morphology across the Coating/Substrate Interface
- 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
- Effect of Ordering on Hydrogen Embrittlement of Ni-Cr Alloy
- 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.