文献类型：期刊文献

英文题名：Investigation on the control of inclusions and tensile strength in Ce-treated P110-grade oil casing steel

作者：Wang, Jun Wang, Linzhu Yang, Shufeng Chen, Chaoyi Li, Junqi Li, Xiang

第一作者：Wang, Jun

通信作者：Wang, LZ[1];Wang, LZ[2]

机构：[1]Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China;[2]Guizhou Univ, Guizhou Prov Univ, Key Lab High Performance Battery Mat, Guiyang 550025, Guizhou, Peoples R China;[3]Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China;[4]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang, Peoples R China

第一机构：Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Mat & Met, Guiyang 550025, Guizhou, Peoples R China;corresponding author), Guizhou Univ, Guizhou Prov Univ, Key Lab High Performance Battery Mat, Guiyang 550025, Guizhou, Peoples R China.

年份：2024

卷号：14

期号：1

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-85197104985);WOS:【SCI-EXPANDED(收录号:WOS:001258394400020)】；

基金：This research is supported by the National Natural Science Foundation of China (Nos. 52064011, 52274331 and 52264041), Guizhou Provincial Basic Research Program (Natural Science) (Nos. ZK [2021]258 and ZK [2023] Zhongdian 020), Guizhou Provincial Key Technology R&D Program (Nos. [2021]342) and Guizhou Provincial Program on Commercialization of Scientific and Technological Achievements (No. [2022]089). Additionally, this work was supported by Open Project of State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University (SKLASS 2023-08) and the Science and Technology Commission of Shanghai Municipality (No. 19DZ2270200). This project is also supported by State Key Laboratory of Advanced Metallurgy (No. K23-04) and China Postdoctoral Science Foundation under Grant Number 2023MD744232.

语种：英文

外文关键词：Steel; Inclusions; Tensile strength; Ce-treated

摘要：This research added rare Earth elements Ce to the P110-grade oil casing steel to reveal their influence on the inclusions and tensile properties. The content of cerium in the steel varied from 0 to 452 ppm. Based on the classical thermodynamic calculation, the predominance diagram of Re-containing inclusions in P110-grade steel was obtained. The evolution route of the inclusions composition with the increasing cerium content in the steel was xCaO & sdot;yAl2O3 -> Al2O3-CeAlO3 -> Ce2O3-CeAlO3 -> Ce2O3-Ce2O2S -> Ce2O2S, which agreed well with the thermodynamic analysis. As the cerium content at 235 ppm, the size of Ce containing inclusions has a minimal size at 2.82 mu m. Suitable Ce content can modify the big-size xCaO & sdot;yAl2O3 inclusions into small-size Re-containing inclusions. The results demonstrate that the tensile performance of this steel can be improved as the cerium content increases from 0 to 235 ppm. However, once the cerium content exceeds 235 ppm, further increases in cerium content led to a decline in performance. The experimental results shows that the presence of large-sized Ce2O2S inclusions and the change of microstructure, will lead to the decrease in tensile performance.