Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering
文献类型：期刊论文
| 作者 | Xiao, Jiuhan1,2,3; Yan, Ling2,3; Zhang, Peng2,3; Li, Guanglong2,3; Li, Boyong2,3; Zhao, Tan2,3; Wang, Hua2,3; Chen, Lijia1; Wang, Dong4 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 201页码:13 |
| 关键词 | HSLA steel Grain refinement M -A constituent optimization Inclusion modification Mechanical properties improvement |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.112931 |
| 通讯作者 | Xiao, Jiuhan(jhxiao1003@163.com) |
| 英文摘要 | The influence of minor Ce doping on the evolution mechanisms of microstructure and mechanical performances of EH47 grade HSLA steel for marine engineering was investigated by microstructure observation and analysis. In the present work, the chemical composition of steels with different Ce contents was designed, and the TMCP hotrolling process was applied to obtain a portion of bainitic microstructure for the purpose of achieve the performance indicators. The microstructures, precipitates, and inclusions of Ce-free and Ce-containing steels were observed and analyzed by using scanning electron microscopy (SEM) equipped with electron backscatter diffraction (EBSD) detector and transmission electron microscope (TEM) equipped with energy dispersive X-ray spectrometers (EDS). The strength, plasticity, and impact toughness of the experimental steels was measured and evaluated. According to the results, after adding rare earth Ce, the microstructures including grains, M-A constituents, and inclusions of steel were refined and optimized significantly. Then, the influencing mechanisms of Ce doping on precipitates and inclusions formation were further discussed in detail. Simultaneously, a clear variation tendency of mechanical properties was presented by Ce addition. The strength and hardness enhanced significantly, and the total elongation declined slightly. Moreover, the impact absorbed energy enhanced from 56 J to 152 J. |
| 资助项目 | National Science and Technology Major Project[J2019-IV-0006-0074] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000983278700001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Science and Technology Major Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177620]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xiao, Jiuhan |
| 作者单位 | 1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114021, Peoples R China 3.Anshan Iron & Steel Grp Co Ltd, Anshan 114021, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Jiuhan,Yan, Ling,Zhang, Peng,et al. Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering[J]. MATERIALS CHARACTERIZATION,2023,201:13. |
| APA | Xiao, Jiuhan.,Yan, Ling.,Zhang, Peng.,Li, Guanglong.,Li, Boyong.,...&Wang, Dong.(2023).Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering.MATERIALS CHARACTERIZATION,201,13. |
| MLA | Xiao, Jiuhan,et al."Effects of minor Ce doping on the microstructure and mechanical performances of a EH47 grade HSLA steel for ship and ocean engineering".MATERIALS CHARACTERIZATION 201(2023):13. |
入库方式： OAI收割
来源：金属研究所
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