Precipitate Effect on Austenite Grains of Steel Q345 in Direct Hot Rolling

MI Zhenli; YU Wei; CHEN Yinli; CAI Qingwu; DONG Xiaohui

doi:10.13374/j.issn1001-053x.2002.05.007

Volume 24 Issue 5

Aug. 2021

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MI Zhenli, YU Wei, CHEN Yinli, CAI Qingwu, DONG Xiaohui. Precipitate Effect on Austenite Grains of Steel Q345 in Direct Hot Rolling[J]. Chinese Journal of Engineering, 2002, 24(5): 507-510. doi: 10.13374/j.issn1001-053x.2002.05.007

Citation:

MI Zhenli, YU Wei, CHEN Yinli, CAI Qingwu, DONG Xiaohui. Precipitate Effect on Austenite Grains of Steel Q345 in Direct Hot Rolling[J]. Chinese Journal of Engineering, 2002, 24(5): 507-510. doi: 10.13374/j.issn1001-053x.2002.05.007

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Precipitate Effect on Austenite Grains of Steel Q345 in Direct Hot Rolling

doi: 10.13374/j.issn1001-053x.2002.05.007

1. National Engineering Research Center for Advanced Rolling Technology, UST Beijing, Beijing 100083, China;
2. Center Research Institute of Building and Construction, Beijing 100088, China

Received Date: 2001-06-29
Available Online: 2021-08-26

Abstract

Abstract

Precipitation effects on austenite recrystallization were studied with Gleeble 1500 in the traditional rolling and the direct hot rolling. The influence of the precipitation of C, N on the microstructure and properties was investigated in the direct rolling of Q245 steel. It can be concluded that the precipition of C,N could fine the austenite grain size and improve the microstrutre and properties of steel.
- Q345 steel,
- direct rolling,
- microalloy element,
- precipitation,
- austenite grain