Effect of Vanadium and Niobium on Restoration Behavior after Hot Deformation in Medium Carbon Spring Steels
スポンサーリンク
概要
- 論文の詳細を見る
The effect of vanadium and niobium on the restoration behavior after hot deformation in medium carbon spring steels was investigated by use of a thermomechanical processing simulator. It was clarified that vanadium is effective to inhibit restoration after hot deformation, because vanadium carbides and/or nitrides finely precipitate during and after hot deformation. On the other hand, niobium is not effective to inhibit restoration. This is because the amount of niobium soluble in austenite is essentially very small in medium carbon steels and that niobium exists as coarse carbides before hot-deformation. The degree of strengthening in martensite was not so large within the present deformation condition equivalent to Controlled Tapered Leaf Rolling, because the enhanced dynamic recovery and recrystallization caused the steady-state deformation(small work-hardening). Further, the increase in the amount of retained austenite and the decrease in solute carbon resisted to increase the strength. However the martensite structure became fine owing to the refinement of the austenite grains by hot deformation. As a result, the toughness and the fatigue strength increased by hot deformation and direct quenching. The above results indicate that the combination of the present thermomechanical processing and the Controlled Tapered Leaf Rolling would be effective to decrease the weight of the springs. The present investigations have also clarified that the vanadium addition and the low temperature deformation is preferable to maximize the effect of the thermomechanical processing.
- 社団法人 日本鉄鋼協会の論文
- 1998-09-15
著者
-
Saito Yoshihiro
Department Of Bio-analytical Chemistry Osaka University Of Pharmaceutical Sciences
-
Tsuji Nobuhiro
Department Of Adaptive Machine Systems Graduate School Of Engineering Osaka University
-
Tsuji Nobuhiro
Department Of Materials Science And Engineering Osaka University
-
AYADA Michihiko
NHK Spring Co., Ltd.
-
YUGA Masao
Graduate Student, Osaka University
-
YONEGUTI Akio
NHK Spring Co., Ltd.
-
Yuga Masao
Graduate Student Osaka University
-
Yoneguti Akio
Nhk Spring Co. Ltd.
-
Ayada Michihiko
Nhk Spring Co. Ltd.
-
Saito Yoshihiro
Department Of Materials Science And Engineering Osaka University
-
Saito Yoshihiro
Department Of Aeronautics And Astronautics
-
SAITO Yoshihiro
Department of Materials Science and Engineering, Osaka University
関連論文
- Accumulation of ^67 Ga citrate in early pregnancy
- Prognostic Value of Pretreatment Serum Carcinoembryonic Antigen and Squamous Cell Carcinoma Antigen Levels for Patients with Stage I-III Non-Small Cell Lung Cancer Treated with Radiation Therapy Alone
- Adult Embryonal Rhabdomyosarcoma Showing Marked response to Radiotherapy: A Case Report
- The Role of Radiation Therapy for Stage IIIB Non-Small Cell Lung Cancer : Impact of Clinical Nodal Stage on Survival
- Production and Application of Monoclonal Antibodies to Human Selenoprotein P
- Friction Stir Welding of Ultrafine Grained Interstitial Free Steels
- Change in Erythrocyte Shape Induced by Cyclosporine Administration
- Microstructure Evolution in Pure Al Processed with Twist Extrusion
- Preoperative Cardiac Evaluation : When Should the Surgeon Consult the Cardiologist?
- Densification and Structural Evolution in Spark Plasma Sintering Process of Mechanically Alloyed Nanocrystalline Fe-23Al-6C Powder
- Interdiffusion in Co Solid Solutions of Co-Al-Cr-Ni System at 1423K
- Transformation in Stir Zone of Friction Stir Welded Carbon Steels with Different Carbon Contents
- Fatigue Crack Propagation Behavior in Commercial Purity Ti Severely Deformed by Accumulative Roll Bonding Process
- Microstructures and Mechanical Properties of Ultra Low Carbon IF Steel Processed by Accumulative Roll Bonding Process
- Mechanical Properties of (SiC)p/Al Composite Fabricated by Sheath Rolling
- Ultra Grain Refinement of Commercial Purity Aluminum by a Multi-Stack ARB Process
- Grain Boundary Structure of Ultrafine Grained Pure Copper Fabricated by Accumulative Roll Bonding
- Axillary lymph node dissection can be avoided in women with breast cancer with intraoperative, false-negative sentinel lymph node biopsies
- Complexation and Crystallization of Rare Earth Salts in DEG and TEG
- Toughness of Ultrafine Grained Ferritic Steels Fabricated by ARB and Annealing Process
- Effects of Bedtime vs. Morning Administration of the Long-Acting Lipophilic Angiotensin-Converting Enzyme Inhibitor Trandolapril on Morning Blood Pressure in Hypertensive Patients
- DNA damages induced by selenite in the presence of glutathione : Reactive oxygen species involved in DNA damages
- DNA Damages Induced by Selenite in the Presence of Glutathione
- Determination of Albumin in Bronchoalveolar Lavage Fluid by Flow-Injection Fluorometry Using Chromazurol S(Analytical Biochemistry)
- Fluorimetric Determination of Trace Amounts of Albumin in Bronchoalveolar Lavage Fluid with Eriochrome Cyanine R(Analytical Biochemistry)
- Antioxidant Activities of Synthesized Selenocompounds without Selenol Groups
- DPPH radical scavenging activity of selenocompounds : importance of selenium
- Weak Association Between Retinopathy of Prematurity and Neurological Disorders in Childhood
- CHARACTERIZATION OF HIGH MOLECULAR WEIGHT FORMS OF PEPTIDE DRUGS IN VIVO
- IN VIVO CONVERSION OF PEPTIDE DRUGS INTO HIGH MOLECULAR WEIGHT FORMS
- IN VIVO FORMATION OF HIGH MOLECULAR WEIGHT COMPONENTS FROM PEPTIDE DRUGS
- Secondary Malignant Fibrous Histiocytoma Following Radiation Therapy for Carcinoma of the Uterine Cervix: Report of Two Cases
- Nanostructured Aluminum and IF Steel Produced by Rolling-a Comparative Study
- Through-Thickness Characterization of Microstructure and Texture in High Purity Aluminum Processed to High Strain by Accumulative Roll-Bonding
- Temperature and Strain Rate Dependence of Flow Stress in Severely Deformed Copper by Accumulative Roll Bonding
- Deformation Microstructure and Nucleation of Recrystallization in Hot-deformed Single Crystals of 18% Cr Ferritic Steel
- Binding Affinity of Bunazosin, Dorzolamide, and Timolol to Synthetic Melanin
- Regulation of Epidermal Growth Factor Receptors in Rat Gastric Mucosa : Effect of Gastric Ulceration
- Rapid Temperature-Programmed Separation and Retention Prediction on a Novel Packed-Capillary Column in Gas Chromatography
- Role of selenium in antioxidative effect of heparin-selenocystamine
- Heparin-Selenocystamine Conjugate with Selenol Groups
- Correlation Between Higher Blood Flow Velocity in the Central Retinal Vein than in the Central Retinal Artery and Severity of Nonproliferative Diabetic Retinopathy
- Classification of Ophthalmic Artery Flow in Patients with Occlusive Carotid Artery Disease
- Case of Infectious Endocarditis Predicted by Orbital Color Doppler Imaging
- Optic Disk Manifestation in Diabetic Eyes with Low Serum Albumin : Late Fluorescein Staining and High Blood Flow Velocities in the Optic Disk
- Strengthening of Sheath-Rolled Aluminum Based MMC by the ARB Process
- Fabrication of Al/Al_2O_3 Particle Reinforced Metal Matrix Composite by Sheath Rolling of Powder Mixture
- Consolidation of Nitrogen Gas Atomized Aluminum Powder by Sheath Rolling
- Flow Field Measurements inside the 200mm Width Smoke Wind Tunnel
- Clinical outcome of chemoradiotherapy for T1G3 bladder cancer
- Novel Fire Investigation Technique Using Needle Extraction in Gas Chromatography
- Retention Behavior on Aminoethyl-modified Poly(p-phenylene terephthalamide) Fiber Stationary Phases in Gas Chromatography
- Superplasticity of Ultra-Fine Grained Al-Mg Alloy Produced by Accumulative Roll-Bonding
- Effect of Vanadium and Niobium on Restoration Behavior after Hot Deformation in Medium Carbon Spring Steels
- Clinical and Molecular Findings in Three Japanese Patients with Crystalline Retinopathy
- Change in Mechanical Properties and Microstructure of ARB Processed Ti during Annealing
- Surgical Outcomes of Epiretinal Membrane Removal After Successful Pars Plana Vitrectomy for Retinal Diseases
- Effect of Boron Addition on the Microstructure of Hot-deformed Ti-added Interstitial Free Steel
- High-Temperature Separations on a Polymer-Coated Fibrous Stationary Phase in Microcolumn Liquid Chromatography
- Micrastructure and Texture of Commercial Purity Aluminum Strips Produced by Melt Direct Rolling
- Factors Related to Poor Visual Outcome in Patients With Retinopathy of Prematurity After Xenon Arc Photocoagulation and /or Cryocautery
- Changes in Mechanical Characteristics of Pre-Annealed Wires of Cu-Sn Alloy Manufactured by Continuous Draw Bending
- Comparative Analysis of Plastic Flow and Grain Refinement in Pure Aluminium Subjected to Simple Shear-Based Severe Plastic Deformation Processing
- Effect of Deformation Temperature on Microstructure Evolution in ARB Processed Ultralow Carbon IF Steel
- Microstructural Evolution during ARB Process of Al-0.2 mass% Sc Alloy Containing Al_3Sc Precipitates in Starting Structures
- Microstructure and Crystallographic Features of Martensite Transformed from Ultrafine-Grained Austenite in Fe-24Ni-0.3C Alloy
- An Abnormal Temperature Dependence of Alkylpyrazines' Retention in Reversed-Phase Liquid Chromatography
- Column Switching Analysis with Packed-Capillary Columns in Gas Chromatography
- Texture Evolution in Al-0.2 mass%Sc Alloy during ARB Process and Subsequent Annealing
- Prognostic factors for invasive thymoma treated with radiation therapy alone or combination of surgery and radiation therapy.
- Microstructural and Crystallographic Features of Hydrogen-related Crack Propagation in Low Carbon Martensitic Steel
- Improvement in Mechanical Properties of a Cu-2.0 mass%Ni-0.5 mass%Si-0.1 mass%Zr Alloy by Combining Both Accumulative Roll-Bonding and Cryo-Rolling with Aging