Kinetics and Crystallography of Intragranular Pearlite Transformation Nucleated at (MnS+VC) Complex Precipitates in Hypereutectoid Fe-Mn-C Alloys

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概要

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• Kinetics and crystallography of intragranular pearlite nucleated at the surface of (MnS+VC) complex precipitate were studied in hypereutectoid Fe-Mn-C steels. The incoherent MnS embedded in the austenite does not act as a strong nucleation site of pearlite unless the transformation time is prolonged. The intragranular pearlite transformation is promoted effectively by the addition of vanadium (V). EPMA analysis showed that the intragranular pearlite nucleates on the (MnS+VC) complex precipitate in the V-added alloy. As the transformation temperature decreases, the intragranular pearlite formation occurs more frequently. A single intragranular pearlite is composed of several colonies, indicating that multiple pearlite colonies nucleate on a (MnS+VC) complex precipitate for intragranular pearlite transformation. There is no specific orientation relationship (OR) between ferrite in intragranular pearlite and austenite matrix while there is a specific OR (Pitsch-Petch OR) between pearlitic ferrite and cementite in the intragranular pearlite.

• 社団法人 日本鉄鋼協会の論文
• 2002-09-15

著者

• MAKI T.

  Department of Materials Science and Engineering, Kyoto University

• Furuhara T.

  Department Of Materials Science And Engineering Kyoto University

• FURUHARA T.

  Institute for Materials Research, Tohoku University

• MAKI T.

  Kyoto University

• Furuhara T

  Institute For Materials Research Tohoku University

• KIMURA N.

  Kyoto University

• GUO Z.

  Formerly at Department of Materials Science and Engineering, Kyoto University

• TAGASHIRA S.

  Steel Products Department, Steel & Technology Development Laboratories, Nisshin Steel Co., Ltd.

• Furuhara T.

  Department Of Material Science And Engineering Kyoto University

• Maki T

  Kyoto University

• Guo Z

  Formerly At Department Of Materials Science And Engineering Kyoto University

• Tagashira S.

  Steel Products Department Steel & Technology Development Laboratories Nisshin Steel Co. Ltd.

関連論文

• Effect of carbon content on ausformed bainite structure in Fe-Ni-C alloys
• Microstructure of plasma nitrided Fe-Cr alloys
• Effect of Austenite Grain Size on the Morphology and Crystallography of Lath Martensite in Low Carbon Steels
• Microstructure of plasma nitrided ferritic stainless steel
• The thermodynamical effect of third alloying elements on cementite precipitation in tempered martensite
• Effect of third alloying element on precipitation of iron carbide in tempering of high carbon martensite
• Phase Transformation from Fine-grained Austenite
• Effect of Carbide Precipitation at Austenite Grain Boundary on Crystallography of Grain Boundary Ferrite
• Effect of transformation temperature and C content on the crystallographic feature of upper bainite
• Comparison of the dislocation substructure between the cold-rolled lath martensite and equiaxed ferrite in IF steel
• Multiphase Crystallography in the Nucleation of Intragranular Ferrite on MnS+V(C, N) Complex Precipitate in Austenite
• Nucleation of Proeutectoid Ferrite on Complex Precipitates in Austenite
• Precipitation in a plasma nitrided Fe-Ti alloy
• Kinetics and Crystallography of Intragranular Pearlite Transformation Nucleated at (MnS+VC) Complex Precipitates in Hypereutectoid Fe-Mn-C Alloys
• Grain Size of Proeutectoid Ferrite Transformed from Fine Grained Austenite in Fe-1.5Mn-0.2C Alloys
• Deformation Microstructure and Tensile Strength of Cold Rolled Pearlitic Steel Sheets
• Crystallography of Intragranular Pearlite Nucleated at (MnS+VC) Complex Precipitate in Austenite
• Effect of Mn and Si Addition on Microstructure and Tensile Properties of Cold-rolled and Annealed Pearlite in Eutectoid Fe-C Alloys
• Effect of ausforming on bainite structure in an Fe-Ni-C alloy
• Control of Cementite Precipitation in Lath Martensite by Rapid Heating and Tempering
• Ultra-fine (α+θ) Duplex Structure Formed by Cold Rolling and Annealing of Pearlite
• Effect of Initial Structure on Microstructure Change during Cold Rolling in an Ultra-low Carbon Steel
• Dislocation Density within Lath Martensite in Fe-C and Fe-Ni Alloys
• Effect of Carbon and Nickel Contents on Dislocation Structure in Ferrous Lath Martensite
• Special Issue on Ultrafine Grained Structures
• Austenite Grain Refinement by Repeated Cycles of Austenitizing and Quenching

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