Knowledge Management System of Hefei Institute of Physical Science,CAS
Enhanced thermal stability of the cellular structure through nano-scale oxide precipitation in 3D printed 316L stainless steel | |
Zhang, Xu1,2; Cao, Haibo1; Yang, Xinyi1; Zhao, Yanyun1; Wang, Huijuan2; Mao, Xiaodong1; Zhai, Yutao1 | |
2021-03-01 | |
发表期刊 | FUSION ENGINEERING AND DESIGN |
ISSN | 0920-3796 |
通讯作者 | Zhao, Yanyun(yanyun.zhao@inest.cas.cn) ; Zhai, Yutao(yutao.zhai@inest.cas.cn) |
摘要 | The cellular structure is one of the reasons for the improvement of 316 L performance which fabricated by additive manufacturing technology. However, the cellular structure tends to disappear at high temperatures. In this study, oxide nanoparticles were introduced into the 316 L matrix to improve the thermal stability of the cellular structure, this material was successfully fabricated by mechanical alloying followed with laser-powder-bed-fusion (LPBF). The thermal stability of the cellular structure in 316 L was tested with isothermal heat treatment at 1073 K, 1173 K and 1273 K, respectively. The microstructural stability of the cellular was characterized with scanning electron microscopy, transmission electron microscopy (TEM), electron backscatter diffraction, X-ray diffraction measurements and Vickers microhardness testing. The cellular structure was stable at 1073 K due to the dispersed precipitates pining the dislocations at its boundary. The chemical composition of the oxide precipitates with sizes in the range of 10-200 nm was examined by TEM combined with an energy dispersive spectrometry. This work provided a method to enhance the thermal stability of the microstructure of the additively manufactured stainless steel 316 L. |
关键词 | Cellular structure Thermal stability Oxide dispersion strengthened Additively manufactured alloys |
DOI | 10.1016/j.fusengdes.2020.112213 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National MCF (Magnetic Confinement Fusion) Energy R&D Program of China[2018YFE0306100] ; National Natural Science Foundation of China[51901223] |
项目资助者 | National MCF (Magnetic Confinement Fusion) Energy R&D Program of China ; National Natural Science Foundation of China |
WOS研究方向 | Nuclear Science & Technology |
WOS类目 | Nuclear Science & Technology |
WOS记录号 | WOS:000631004200001 |
出版者 | ELSEVIER SCIENCE SA |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/120808 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Zhao, Yanyun; Zhai, Yutao |
作者单位 | 1.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China |
第一作者单位 | 中国科学院核能安全技术研究所 |
通讯作者单位 | 中国科学院核能安全技术研究所 |
推荐引用方式 GB/T 7714 | Zhang, Xu,Cao, Haibo,Yang, Xinyi,et al. Enhanced thermal stability of the cellular structure through nano-scale oxide precipitation in 3D printed 316L stainless steel[J]. FUSION ENGINEERING AND DESIGN,2021,164. |
APA | Zhang, Xu.,Cao, Haibo.,Yang, Xinyi.,Zhao, Yanyun.,Wang, Huijuan.,...&Zhai, Yutao.(2021).Enhanced thermal stability of the cellular structure through nano-scale oxide precipitation in 3D printed 316L stainless steel.FUSION ENGINEERING AND DESIGN,164. |
MLA | Zhang, Xu,et al."Enhanced thermal stability of the cellular structure through nano-scale oxide precipitation in 3D printed 316L stainless steel".FUSION ENGINEERING AND DESIGN 164(2021). |
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