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Materials (Basel). 2017 Aug 31;10(9). pii: E1012. doi: 10.3390/ma10091012.

Effect of Coiling Temperature on Microstructure, Properties and Resistance to Fish-Scaling of Hot Rolled Enamel Steel.

Author information

1
School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China. zhaoyang0323@smm.neu.edu.cn.
2
School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China. 15832553619@163.com.
3
Shougang Research Institute of Technology, Beijing 100043, China. 15832553619@163.com.
4
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. caijiayubo@sina.com.
5
College of Mechanical and Electrical Engineering, Xi'an Polytechnic University, Xi'an 710048, China. xiaoyun_yuan@126.com.
6
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China. liuxh@mail.neu.edu.cn.

Abstract

The microstructure, mechanical properties, and hydrogen permeation behavior of hot rolled enamel steel were investigated. Three coiling temperatures were adopted to gain different sizes of ferrite grain and TiC precipitates. The results show that a large number of interphase precipitates of nano-sized TiC can be obtained at coiling temperatures of 650 and 700 °C, while a few precipitates are found in experimental steel when coiling temperature is 600 °C. The yield strength and ultimate tensile strength decrease with increasing coiling temperature, while elongation increases. The experimental steel has the best resistance to fish-scaling at coiling temperature of 700 °C, due to the large quantities of nano-sized interphase precipitates of TiC.

KEYWORDS:

coiling temperature; hot rolled enamel steel; interphase precipitates; microstructure; resistance to fish-scaling

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