Evaluation model of susceptibility to Cu hot shortness of Cu-containing LC steel

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Jiang, Yinghua^1,2 ; Xie, Chunqian^1,2

Shougang Research Institute of Technology, Beijing

100043, China^1

Beijing Key Laboratory of Green Recyclable Process for Iron and Steel Production Technology, Beijing

100043, China^2

关键词: Evaluation modeling;    Hot shortness;    Oxidation conditions;    Oxidation rates;    Scale-steel interfaces;    Selective oxidation;    Steel-oxide interfaces;    Steelmaking process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012098/pdf
DOI  :  10.1088/1757-899X/207/1/012098

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

It is well known that copper causes the hot shortness problem when in the scrap based steelmaking process. Hot shortness occurs because of selective oxidation of the iron whereby the more noble copper is enriched at the steel-oxide interface and embrittlement take places during hot working. In this paper, in order to control the Cu hot shortness, the evaluation model of susceptibility to Cu hot shortness was investigated. We found that Cu hot shortness susceptibility is related to the oxidation rate, the copper equivalence and the scale-steel interface length ratio. Also, it is founded to exist a fairly nice correlation between the oxidation rate and other factors such as chemistry elements, oxidation conditions, especially the Ni content.