Effects of high magnetic field heat treatment on the Microstructure of Fe-0.76%C Alloy

被引：5

作者：

Gong, M. L. ^{[1
]}

Zhao, X. ^{[1
]}

He, C. S. ^{[1
]}

Song, J. Y. ^{[1
]}

Zuo, L. ^{[1
]}

机构：

[1] Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110004, Peoples R China

来源：

PHYSICAL AND NUMERICAL SIMULATION OF MATERIAL PROCESSING VI, PTS 1 AND 2 | 2012年 / 704-705卷

关键词：

high magnetic field; Fe-0.76%C alloy; microstructure; FERRITE TRANSFORMATION; 2-PHASE STRUCTURES; ALIGNMENT; EQUILIBRIUM; AUSTENITE; SYSTEM;

D O I：

10.4028/www.scientific.net/MSF.704-705.863

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present studies are to investigate the microstructure features during transformation from austenite to ferrite without and with magnetic field on Fe-0.76%C alloy. It is found that the area fraction and numbers of proeutectoid ferrite grain as well as the lamellar spacing of pearlite in Fe-0.76%C alloy increased considerably with the increase of magnetic field intensity. The reason is that, the magnetic field increases the driving force of proeutectoid ferrite nuclei and shifts the eutectoid point to the side of high carbon content and high temperature, which increases the starting-temperature of the transformation from austenite to ferrite. The proeutectoid ferrite grains are elongated along the magnetic field direction, which can be explained as follows: the proeutectoid ferrite becomes the magnetic dipolar under high magnetic field, and then the polarized austenite atoms are much easier to diffuse into ferrite grains along the magnetic field direction.

引用

页码：863 / 869

页数：7

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