| S含量波动对DH36船板钢机械性能的影响 |
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| 引用本文： | 吴建中,杨文晟,郭汉杰,于梦曦,石骁,段生朝.S含量波动对DH36船板钢机械性能的影响[J].有色金属科学与工程,2017,8(3):22. |
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| 作者姓名： | 吴建中 杨文晟 郭汉杰 于梦曦 石骁 段生朝 |
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| 作者单位： | 北京科技大学冶金与生态工程学院，高端金属材料特种熔炼与制备北京市重点实验室, 北京 100083 |
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| 基金项目： | 国家自然科学基金资助项目51274031 |
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| 摘 要： | 船板钢机械性能包括屈服强度、抗拉强度、断面收缩率以及冲击功，其机械性能取决于微观组织、钢的成分等因素，故应尽量减少化学成分波动对机械性能的影响.通过Matlab软件利用工业生产实际大数据建立不同元素含量下S含量与DH36船板钢机械性能的数学模型.研究发现DH36船板钢的冲击功随着S含量的升高呈先增后减的趋势. DH36船板钢的屈服强度、拉伸强度、断面收缩率均与S含量呈非线性关系，趋势与其他元素的含量有关.
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| 关 键 词： | DH36 船板钢化学成分 S Matlab非线性拟合 |
| 收稿时间： | 2016-12-25 |
Effect of sulfur content fluctuation on mechanical properties of DH36 ship plate steel |
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| Affiliation: | School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials, Beijing 100083, China |
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| Abstract: | The mechanical properties of ship plate steel, such as yield strength, tensile strength, reduction of area and impact energy, are decided by the microstructure and steel composition. Therefore, it is highly advised to minimize the effect of chemical composition fluctuation on the mechanical properties. This paper established a mathematical model of sulfur content and mechanical properties of DH36 ship plate steel under different element content by applying the industrial production data and Matlab software. The results show that impact energy of the DH36 ship plate steel increases first, then drops, with the rising sulfur content. The yield strength, tensile strength and section reduction rate of DH36 ship plate steel are observed in a nonlinear relationship with the sulfur content, the tendency relating to the contents of other elements. |
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