Microstructure and mechanical properties of multi-component nano oxide-dispersion strengthened RAFM steel fabricated via laser powder bed fusion

被引：0
|
作者：
Chen, Wei [1 ,2 ]
Suh, Joowon [3 ,4 ]
Cao, Haibo [1 ]
Jiang, Zhizhong [1 ,2 ]
Kang, Suk Hoon [3 ]
Yu, Jie [1 ,2 ]
机构：
[1] Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
[3] Korea Atom Energy Res Inst, Daejeon 34057, South Korea
[4] Seoul Natl Univ, 1 Gwanak Ro, Seoul 08826, South Korea
来源：
MATERIALS LETTERS | 2024年 / 355卷
基金：
中国国家自然科学基金;
关键词：
Additive manufacturing; Nanocomposites; Microstructure; Mechanical properties;
D O I：
10.1016/j.matlet.2023.135473
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Y4Zr3O12 multi-component nanoparticles prepared by sol-gel method were adsorbed on the surface of gasatomized reduced activation ferritic/martensitic (RAFM) steel powder. This mixture powder was then utilized in the fabrication of oxide-dispersion strengthened (ODS) RAFM steel through laser powder bed fusion. The microstructure of the ODS RAFM steel comprised a combination of columnar ferrite grains and martensitic laths. The Y4Zr3O12 nanoparticles were homogeneously distributed in the matrix, with an average size of 36.3 nm and a high density of 2.49 x 1020/m3. The results of the mechanical properties tests revealed that the additively manufactured ODS RAFM steel exhibited a good balance of strength and elongation.
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页数：5
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