The Deoxidation Process of GCr15 Steel

Cai Huaide; Zhang Jian; Tong Fusheng; Zhang Bingcheng; Qu Dianlou; Shi Liyong; Zhang Mingyi

doi:10.13374/j.issn1001-053x.1989.06.019

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Cai Huaide, Zhang Jian, Tong Fusheng, Zhang Bingcheng, Qu Dianlou, Shi Liyong, Zhang Mingyi. The Deoxidation Process of GCr15 Steel[J]. Chinese Journal of Engineering, 1989, 11(6): 493-500. doi: 10.13374/j.issn1001-053x.1989.06.019

Citation:

Cai Huaide, Zhang Jian, Tong Fusheng, Zhang Bingcheng, Qu Dianlou, Shi Liyong, Zhang Mingyi. The Deoxidation Process of GCr15 Steel[J]. Chinese Journal of Engineering, 1989, 11(6): 493-500. doi: 10.13374/j.issn1001-053x.1989.06.019

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The Deoxidation Process of GCr15 Steel

doi: 10.13374/j.issn1001-053x.1989.06.019

1. Dept. of Metallurgy;
2. Xining Steel Works in China

Received Date: 1989-03-27
Available Online: 2021-11-15

Abstract

Abstract

It is shown that the average [O] in the steel can be decreased to 12.86 ppm and there is an optimal [%Si] at the end of melting as 0.11%, at which [O] after vacuum carbon deoxidation （VCD） is minimum. A kinetical model has been deduced to simulate the VCD process. The results show that adding Si before Al is superior to the adding Al before Si with respect to the final [O] in the steel. It is suggested that the melting point of covering slag should be lower than 1550℃, and （FeO+MnO） should be less than 1%, so as to effectively refine GCr15 steel.
- deoxidation,
- optimal silicon content,
- covering slag,
- refining