The Three-Dimensional Elemental Distribution of 3D Printing Stainless Steel Gear via Confocal 3D_XRF Analysis

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Qin, Min^1 ; Yi, Longtao^2 ; Wang, Jingbang^1 ; Han, Yue^1 ; Sun, Tianxi^1 ; Liu, Zhiguo^1

Key Laboratory of Beam Technology and Material Modification, Ministry of Education, Beijing Normal University, Beijing

100875, China^1

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang

621000, China^2

关键词: Element distribution;    Elemental distribution;    Elemental mapping;    Layer structures;    Macroscopic mechanical properties;    Metal products;    Micro X-ray fluorescence;    Surface analysis technology;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012033/pdf
DOI  :  10.1088/1757-899X/269/1/012033

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The macroscopic mechanical properties of 3D printing product are closely related to their microstructure, it has significant importance to accurately characterize the micro-structure of 3D printing products. Confocal three-dimensional micro-X-ray fluorescence (3D-XRF) is a good surface analysis technology widely used to analyse elements and elemental distributions. Therefore, this technique is also very suitable for element distribution measurement of 3D printing product which is printed layer by layer. In this paper the 3D-XRF technique was used to study the spatial elemental distribution of a micro zone from the 3D printing stainless steel gear. An elemental mapping of two orthogonal sections in the depth direction and three dimensional elemental rendering of one micro-region were obtained. The result shows that elemental distribution of the sample is not uniform, the elemental layer structure is formed in the depth direction, the content of the element in measured area vary smoothly, and with no elemental mutation region. This indicates that the 3D printing sample are fused well between layers and layers, with no large pores or bubbles inside the sample. This study demonstrates that it is feasible to make assessment for micro-structure of 3D printing metal product by using confocal 3D-XRF.