Three-Dimensional Morphology and Growth Behavior of Ferrite Allotriomorphs Formed at Grain Boundary Edges

被引:0
作者
Xiang-liang Wan
Lin Cheng
Kai-ming Wu
机构
[1] Wuhan University of Science and Technology,International Research Institute of Steel Technology
来源
Journal of Iron and Steel Research International | 2010年 / 17卷
关键词
steel; ferrite allotriomorph; three-dimensional morphology; growth kinetics;
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学科分类号
摘要
Three-dimensional morphology of ferrite allotriomorphs nucleated at grain boundary edges in low carbon steel was revealed by means of serial sectioning in conjunction with computer-aided three-dimensional reconstruction techniques. The typical morphology of them was of an elongated triangular pyramid. The length, width and thickness of ferrite allotriomorphs were measured on the basis of three-dimensional reconstructed images. The aspect ratio (length/width) of them was 4.5 on an average and scattered from 3 to 6. The measured sizes were smaller than calculated ones, which was probably attributed to solute drag-like effect of manganese in the alloy.
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页码:49 / 53
页数:4
相关论文
共 54 条
[1]  
Dubé H I(1958)The Formation of Proeutectoid Ferrite in Carbon Steels [J] Rev Met 55 201-undefined
[2]  
Aaronson C A(1973)Influence of Al, Co, and Si Upon the Kinetics of the Proeutectoid Ferrite Reaction [J] Metall Trans 4A 959-undefined
[3]  
Mehl R F(1973)On the Growth Kinetics of Grain Boundary Ferrite Allotriomorphs [J] Metall Trans 4A 783-undefined
[4]  
Kinsman K R(1977)Growth Kinetics of Grain Boundary Ferrite Allotriomorphs in Fe-C Alloys [J] Metall Trans 8A 323-undefined
[5]  
Aaronson H I(1981)Growth Kinetics of Grain Boundary Ferrite Allotriomorphs in Fe-C-X Alloys [J] Metall Trans 12A 1729-undefined
[6]  
Atkinson C(1999)Three-Dimensional Analysis of Proeutectoid Cementite Precipitates [J] Acta Mater 47 711-undefined
[7]  
Aaron H B(1997)Three Dimensional Morphology of Cementite Precipitates [J] Scripta Mater 36 875-undefined
[8]  
Kinsman K R(2005)New Insight Into Widmanstätten Proeutectoid Ferrite Transformation Integration of Crystallographic and Three-Dimensional Morphological Observations [J] Metall Mater Trans 36A 1209-undefined
[9]  
Bradley J R(1997)The Morphology of High Volume Fraction Solid-Liquid Mixtures: An Application of Microstructural Tomography [J] Acta Mater 45 2279-undefined
[10]  
Rigsbee J M(2003)Three-Dimensional Distribution, Morphology, and Nucleation Site of Intragranular Ferrite Formed in Association With Inclusions [J] Mater Sci Eng 344 A 261-undefined