EBSD investigation on microstructure transformation in low carbon steel during continuous cooling

被引：11

作者：

Su, B. ^{[1
]}

Lin, H-P. ^{[1
]}

Kuo, J-C. ^{[1
]}

Pan, Y-T. ^{[2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, Taiwan

[2] China Steel Corp, Kaohsiung 81233, Taiwan

来源：

CANADIAN METALLURGICAL QUARTERLY | 2014年 / 53卷 / 03期

关键词：

Image quality; EBSD; Phase transformation; Steel; Dilatometry; ELECTRON BACKSCATTER DIFFRACTION; RECRYSTALLIZED FRACTION; VOLUME FRACTION; MARTENSITE; BAINITE; FERRITE;

D O I：

10.1179/1879139514Y.0000000126

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this study the microstructure in low carbon steel during phase transformation was systematically investigated using dilatometry, optical microscopy as well as EBSD. The specimens after annealing at 900 degrees C for 3 min were subsequently cooled at 0.3-100 degrees C s(-1) for dilatometry, in order to determine the continuous cooling transformation (CCT) diagram. Then the microstructures were analysed by optical microscopy (OM) and electron backscattering diffraction (EBSD). Dilatometry, optical microscopy as well as image quality technique in EBSD were combined together to determine the continuous cooling transformation diagram of low carbon steel. As increasing in the cooling rate from 1 to 30 degrees C s(-1), the fraction of ferrite is almost 90% and the phase transformation occurs from pearite to bainite at the cooling rate between 10 to 20 degrees C s(-1).

引用

页码：352 / 361

页数：10

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