Kinetics and mechanisms of intragranular ferrite nucleation on non-metallic inclusions in low carbon steels

被引：47

作者：

Pan, T. ^{[1
]}

Yang, Z. -G. ^{[1
]}

Zhang, C. ^{[1
]}

Bai, B-Z. ^{[1
]}

Fang, H. -S. ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 438卷 / 1128-1132期

关键词：

intragranular ferrite; non-metallic inclusions; nucleation; acicular ferrite;

D O I：

10.1016/j.msea.2006.02.078

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Isothermal heat-treatment was conducted to study the microstructures of intragranular ferrite nucleated on non-metallic inclusions in a low carbon steel. The dominant transformed products were grain boundary ferrite, intragranular polygonal ferrite, acicular ferrite and bainite in turn from high to low temperature (650-500 degrees C). The favorite temperature range for the occurrence of largest amount of acicular ferrite was about 580-620 degrees C in this study. The morphology of acicular ferrite and intragranular polygonal ferrite was also studied considering the axial ratio. Acicular ferrite and polygonal ferrite were measured with electron back scattering patterns to have different orientation relationship with austenite, Kurdjumov-Sachs (K-S) relationship of the former and possible random of the latter. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1128 / 1132

页数：5

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