A new strategy for additive manufacturing ODS steel using Y-containing gas atomized powder
文献类型：期刊论文
| 作者 | Jia, Haodong1; Zhou, Zhangjian1; Li, Shaofu2,3 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 187页码:11 |
| ISSN号 | 1044-5803 |
| 关键词 | Oxide dispersion strengthened 3D printing Nanoparticle Mechanism Tensile property |
| DOI | 10.1016/j.matchar.2022.111876 |
| 英文摘要 | The 3D printing technology is gradually applied on oxide dispersion strengthened (ODS) steels to address its processing issue and prepare complex components for generation IV nuclear reactor. However, the nanoparticles always aggregate and coarsen during the printing process because of the severe repining behavior in the high temperature melt. This leads to a large degradation of the strengthening effect of nanoparticles. This study proposes a strategy of in situ synthesis of nanoparticles in ODS steel during the printing process by using pre alloyed powder with controlling the partial pressure of oxygen to overcome the abnormal growth behavior of nanoparticles. After printing, a large number of nanoparticles were in situ formed and distributed uniformly in the ODS steel. The average size and number density of nanoparticles were 21.09 nm and 4.1 +/- 0.5 x 10(21)/m(3), respectively. As compared with the majority of 3D printed ODS steels from mechanical alloyed powder, the in situ formed nanoparticles in this study exhibit the combination of smaller size, higher number density, and better distribution homogeneity and size uniformity. This provides an outstanding secondary strengthening effect and produces ODS steel with the UTS and YS of printed ODS steel are 725 and 673 MPa, respectively. In addition, the microstructural characterization and formation mechanism of nanoparticles in this newly printed ODS steel are also given and discussed in detail. |
| WOS关键词 | STRENGTHENED FERRITIC STEEL ; MECHANICAL-PROPERTIES ; MICROSTRUCTURE CHARACTERIZATION ; OXIDE PARTICLES ; NANOPARTICLES ; STABILITY ; EVOLUTION ; TI |
| 资助项目 | National Natural Science Foundation of China[51801201] ; National Natural Science Foundation of China[U1967212] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:000912854100001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56689]  |
| 通讯作者 | Zhou, Zhangjian; Li, Shaofu |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Haodong,Zhou, Zhangjian,Li, Shaofu. A new strategy for additive manufacturing ODS steel using Y-containing gas atomized powder[J]. MATERIALS CHARACTERIZATION,2022,187:11. |
| APA | Jia, Haodong,Zhou, Zhangjian,&Li, Shaofu.(2022).A new strategy for additive manufacturing ODS steel using Y-containing gas atomized powder.MATERIALS CHARACTERIZATION,187,11. |
| MLA | Jia, Haodong,et al."A new strategy for additive manufacturing ODS steel using Y-containing gas atomized powder".MATERIALS CHARACTERIZATION 187(2022):11. |
入库方式： OAI收割
来源：过程工程研究所
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