An investigation on the oxidation behavior of spatters generated during the laser powder bed fusion of 316L stainless steel

doi:10.1016/j.apsusc.2022.152796

	An investigation on the oxidation behavior of spatters generated during the laser powder bed fusion of 316L stainless steel
	Lu, Chao 4; Zhang, Ruihua 3,4; Wei, Xiaohong 3; Xiao, Mengzhi 4; Yin, Yan 2; Qu, Yuebo 4; Li, Hui 4; Liu, Pengyu 4; Qiu, Xiaopan 1; Guo, Tieming 2
刊名	Applied Surface Science
	2022-06-01
卷号	586
关键词	Austenitic stainless steel Electron diffraction Energy dispersive spectroscopy High resolution transmission electron microscopy Manganese oxide Oxidation Schematic diagrams Silica 316 L stainless steel High-resolution scanning electron microscopies Laser powder bed fusion Laser powders Oxidation behaviours Oxide islands Powder bed Scanning transmission electron microscopy Spatter Surface characterization
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2022.152796
英文摘要	The characterization of the oxide islands on the surface of the spatter contributes to a fundamental understanding of the formation and oxidation of spatter in laser powder bed fusion (LPBF). In the present study, the surface and cross-section characteristics of spatters with oxide islands are investigated using high resolution scanning electron microscopy combined with energy dispersive spectroscopy, scanning transmission electron microscopy and selected area electron diffraction. The oxide islands with different configurations on the spatter surface are divided into three main categories: hemispherical, disc-like and film-like. Moreover, the primary component of oxide islands is an amorphous SiO2, which may also contain MnO, MnSiO3, and Mn2SiO4. Furthermore, a transition layer (enriched in Si, Mn, and O) is found at the oxide islands \|\| spatter substrate interface, and the width of which is 4 μm and 20 nm on the spatter surface and within the spatter cross-section, respectively. Besides, the composition and sources of the circular oxide nano-inclusions (50-600 nm) internal to the spatters are also discussed in detail. Eventually, the driving forces affecting the formation of oxide islands on the surface of spatters are summarized, and a schematic diagram of the formation procedure is developed. © 2022 Elsevier B.V.
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000775635500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157865]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Hardware Knife Cut Industrial Technology Research Institute Yangjiang, Yangjiang; 529533, China; 4.Central Iron & Steel Research Institute, Beijing; 100081, China;
推荐引用方式 GB/T 7714	Lu, Chao,Zhang, Ruihua,Wei, Xiaohong,et al. An investigation on the oxidation behavior of spatters generated during the laser powder bed fusion of 316L stainless steel[J]. Applied Surface Science,2022,586.
APA	Lu, Chao.,Zhang, Ruihua.,Wei, Xiaohong.,Xiao, Mengzhi.,Yin, Yan.,...&Guo, Tieming.(2022).An investigation on the oxidation behavior of spatters generated during the laser powder bed fusion of 316L stainless steel.Applied Surface Science,586.
MLA	Lu, Chao,et al."An investigation on the oxidation behavior of spatters generated during the laser powder bed fusion of 316L stainless steel".Applied Surface Science 586(2022).