X-ray Computed Tomography Procedures to Quantitatively Characterize the Morphological Features of Triply Periodic Minimal Surface Structures
| Parent link: | Materials Vol. 14, iss. 11.— 2021.— [3002, 14 p.] |
|---|---|
| Corporate Author: | |
| Other Authors: | , , , , , , , , |
| Summary: | Title screen Additively manufactured (AM) metallic sheet-based Triply Periodic Minimal Surface Structures (TPMSS) meet several requirements in both bio-medical and engineering fields: Tunable mechanical properties, low sensitivity to manufacturing defects, mechanical stability, and high energy absorption. However, they also present some challenges related to quality control, which can prevent their successful application. In fact, the optimization of the AM process is impossible without considering structural characteristics as manufacturing accuracy, internal defects, as well as surface topography and roughness. In this study, the quantitative non-destructive analysis of TPMSS manufactured from Ti-6Al-4V alloy by electron beam melting was performed by means of X-ray computed tomography (XCT). Several advanced image analysis workflows are presented to evaluate the effect of build orientation on wall thicknesses distribution, wall degradation, and surface roughness reduction due to the chemical etching of TPMSS. It is shown that the manufacturing accuracy differs for the structural elements printed parallel and orthogonal to the manufactured layers. Different strategies for chemical etching show different powder removal capabilities and both lead to the loss of material and hence the gradient of the wall thickness. This affects the mechanical performance under compression by reduction of the yield stress. The positive effect of the chemical etching is the reduction of the surface roughness, which can potentially improve the fatigue properties of the components. Finally, XCT was used to correlate the amount of retained powder with the pore size of the functionally graded TPMSS, which can further improve the manufacturing process. |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://doi.org/10.3390/ma14113002 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665235 |
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| 200 | 1 | |a X-ray Computed Tomography Procedures to Quantitatively Characterize the Morphological Features of Triply Periodic Minimal Surface Structures |f S. Evsevleev, T. A. Mishurova, D. Khrapov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 40 tit.] | ||
| 330 | |a Additively manufactured (AM) metallic sheet-based Triply Periodic Minimal Surface Structures (TPMSS) meet several requirements in both bio-medical and engineering fields: Tunable mechanical properties, low sensitivity to manufacturing defects, mechanical stability, and high energy absorption. However, they also present some challenges related to quality control, which can prevent their successful application. In fact, the optimization of the AM process is impossible without considering structural characteristics as manufacturing accuracy, internal defects, as well as surface topography and roughness. In this study, the quantitative non-destructive analysis of TPMSS manufactured from Ti-6Al-4V alloy by electron beam melting was performed by means of X-ray computed tomography (XCT). Several advanced image analysis workflows are presented to evaluate the effect of build orientation on wall thicknesses distribution, wall degradation, and surface roughness reduction due to the chemical etching of TPMSS. It is shown that the manufacturing accuracy differs for the structural elements printed parallel and orthogonal to the manufactured layers. Different strategies for chemical etching show different powder removal capabilities and both lead to the loss of material and hence the gradient of the wall thickness. This affects the mechanical performance under compression by reduction of the yield stress. The positive effect of the chemical etching is the reduction of the surface roughness, which can potentially improve the fatigue properties of the components. Finally, XCT was used to correlate the amount of retained powder with the pore size of the functionally graded TPMSS, which can further improve the manufacturing process. | ||
| 461 | |t Materials | ||
| 463 | |t Vol. 14, iss. 11 |v [3002, 14 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a metamaterials | |
| 610 | 1 | |a functionally graded porous structure | |
| 610 | 1 | |a triply periodic minimal surface structures | |
| 610 | 1 | |a roughness analysis | |
| 610 | 1 | |a powder removal | |
| 610 | 1 | |a deep learning segmentation | |
| 610 | 1 | |a метаматериалы | |
| 610 | 1 | |a пористые структуры | |
| 610 | 1 | |a поверхности | |
| 610 | 1 | |a шероховатости | |
| 610 | 1 | |a порошки | |
| 610 | 1 | |a компьютерная томография | |
| 610 | 1 | |a морфологические особенности | |
| 701 | 1 | |a Evsevleev |b S. |g Sergey | |
| 701 | 1 | |a Mishurova |b T. A. |g Tatjyana Aleksandrovna | |
| 701 | 1 | |a Khrapov |b D. |c Specialist in the field of nuclear technologies |c Research Engineer of Tomsk Polytechnic University |f 1993- |g Dmitriy |3 (RuTPU)RU\TPU\pers\43119 |9 21619 | |
| 701 | 1 | |a Paveljeva |b A. A. |g Aleksandra Andreevna | |
| 701 | 1 | |a Maynel |b D. |g Ditmar | |
| 701 | 1 | |a Surmenev |b R. A. |c physicist |c Associate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences |f 1982- |g Roman Anatolievich |3 (RuTPU)RU\TPU\pers\31885 |9 15957 | |
| 701 | 1 | |a Surmeneva |b M. A. |c specialist in the field of material science |c engineer-researcher of Tomsk Polytechnic University, Associate Scientist |f 1984- |g Maria Alexandrovna |3 (RuTPU)RU\TPU\pers\31894 |9 15966 | |
| 701 | 1 | |a Koptyug |b A. V. |g Andrey Valentinovich | |
| 701 | 1 | |a Bruno |b G. |g Giovanni | |
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