热轧无间隙钛稳定钢板析出行为的热力学分析

IF 0.3 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-11-01 DOI:10.2355/tetsutohagane.tetsu-2023-032

Michitoshi Saeki, Takako Yamashita

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引用次数: 0

摘要

对热轧ti稳定无间隙(IF)钢板的析出行为进行了热力学计算。通过将第一性原理计算评估的Ti4C2S2热力学参数与先前报道的参数相结合，开发了用于计算IF钢在热轧过程中析出行为的参数。利用这些热力学参数计算的析出行为与热轧中频钢板的透射电镜观察结果吻合较好。热力学计算结果表明，中频钢板在热轧过程中的析出行为取决于Mn的含量。这些结果被认为是由于含有Mn的硫化物的析出增加导致钢板中过量S的减少。

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Thermodynamic Analysis of Precipitation Behaviors in Hot-Rolled Ti-stabilized Interstitial-Free Steel Sheets

Thermodynamic calculations were performed on the precipitation behavior in the hot-rolled Ti-stabilized Interstitial Free (IF) steel sheets. By combining the thermodynamic parameters of Ti4C2S2 evaluated by first-principles calculations with previously reported parameters, parameters were developed that allow the calculation of the precipitation behavior of IF steels during hot rolling. The calculated precipitation behavior using those thermodynamic parameters is in relatively good agreement with the TEM observation results in hot-rolled IF steel sheets. The results of thermodynamic calculations suggest that the precipitation behavior of IF steel sheets during hot rolling depends on the amounts of Mn. These results are considered to be due to the decreased excess S in steel sheets as a result of the increase in precipitation of sulfides containing Mn.

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来源期刊

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan 工程技术-冶金工程

CiteScore

0.70

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal ISIJ International first appeared in 1961 under the title Tetsu-to-Hagané Overseas. The title was changed in 1966 to Transactions of The Iron and Steel Institute of Japan and again in 1989 to the current ISIJ International. The journal provides an international medium for the publication of fundamental and technological aspects of the properties, structure, characterization and modeling, processing, fabrication, and environmental issues of iron and steel, along with related engineering materials. Classification I Fundamentals of High Temperature Processes II Ironmaking III Steelmaking IV Casting and Solidification V Instrumentation, Control, and System Engineering VI Chemical and Physical Analysis VII Forming Processing and Thermomechanical Treatment VIII Welding and Joining IX Surface Treatment and Corrosion X Transformations and Microstructures XI Mechanical Properties XII Physical Properties XIII New Materials and Processes XIV Social and Environmental Engineering.