冷却速度和奥氏体晶粒对铁素体形核影响研究

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

基金项目:

营口理工学院青年科研基金项目(QNL201717)。

Influence of Cooling Rate and Austenite Grain Size on Nucleation of Ferrite

1. North China University of Science and Technology, College of Metallurgy and Energy, Tangshan 063009, Hebei, China;
2. Hebei Province High Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan 063009, Hebei, China;
3. North China University of Science and Technology, College of Qian'an, Qian'an 064400, Hebei, China

摘要: 运用高温淬火相变仪和高温共聚焦显微镜等设备,研究非调质中碳钢中晶内铁素体受冷却速度和奥氏体晶粒的影响规律。进一步对晶内铁素体的形核长大进行探究,为洁净钢冶炼提供依据。试验表明,冷却速度为0.1℃/s时获得等轴形铁素体最佳,并且冷却速度影响着铁素体的相变温度;保温时间600 s时得到的尺寸较小的奥氏体更适宜铁素体在晶界处形成。
- 非调质中碳钢 /
- 冷却速度 /
- 奥氏体晶粒 /
- 等轴形铁素体 /
- 相变温度
Abstract: In this paper,influence of cooling rate and austenite grain on intragranular ferrite in non quenched and tempered medium carbon steel had been investigated by using high temperature quenching and high temperature phase change machine confocal microscope.Furthermore,the nucleation and growth of intragranular ferrite had been studied in order to provide the basis for smelting clean steel.Experimental results show that the cooling rate of 0.1 ℃/s can produce optimal equiaxial ferrite and the cooling rate affects the transformation temperature of ferrite.600 s holding time at quenching temperature can generate small size of austenite which is more suitable for ferrite nucleation at grain boundaries.
- non quenched and tempered medium carbon steel /
- cooling rate /
- austenite grain /
- equiaxed ferrite /
- transformation temperature