Analysis and control of surface cracks in a B-bearing continuous casting blooms-Reference-Cited by-同舟云学术

Analysis and control of surface cracks in a B-bearing continuous casting blooms

Published:2024-01-01 Issue:1 Volume:43 Page:
ISSN:2191-0324
Container-title:High Temperature Materials and Processes
language:en
Short-container-title:

Author:

Mao Wenwen¹,Li Jie¹,Liu Yong¹,Yang Chengyu²,Gao Yu¹,Xing Liyong¹,Liu Xianmin²,Li Jie¹,Zhao Haitao³

Affiliation:

1. Process Technology Collaborative Innovation Centre, HBIS Materials Technology Research Institute , Shijiazhuang , Heibei 050018 , China

2. Shigang Jingcheng Equipment Development & Manufacturing Co., LTD. , Yingkou , Liaoning 115000 , China

3. Institute for Carbon Neutrality, University of Science and Technology Beijing , Beijing 100083 , China

Abstract

Abstract In this work, normal manufacture of a B-bearing steel was hampered by cracks in steel. In order to control these cracks, the formation mechanism has been examined through a comprehensive analysis of crack morphology, element segregation, high temperature mechanical properties, and precipitates. The high-temperature thermoplastic capabilities of the steel were found to be reduced by boron nitride particles precipitated at grain boundary. This led to the formation of a brittle zone in the straightening zone of the continuous casting process, which in turn caused cracks. Based on the formation mechanism of these cracks, the cracks were successfully controlled by adding an appropriate amount of Ti element to the steel and reducing the charging temperature of the heating furnace.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/htmp-2022-0325/pdf

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