Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy
One of the defining features of fusion-based additive manufacturing (AM) processes is the localized melting of metals by a high-energy source, which fuses the material together point by point and layer by layer into a three-dimensional part [4]. The directional thermal gradients, variable cooling ra...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Online Access: | https://hdl.handle.net/10356/171674 |
| _version_ | 1826119667672940544 |
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| author | Matteo, Seita Le, Tan-Phuc Zhu, Chenyang |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Matteo, Seita Le, Tan-Phuc Zhu, Chenyang |
| author_sort | Matteo, Seita |
| collection | NTU |
| description | One of the defining features of fusion-based additive manufacturing (AM) processes is the localized melting of metals by a high-energy source, which fuses the material together point by point and layer by layer into a three-dimensional part [4]. The directional thermal gradients, variable cooling rates, and cyclic re-heating which characterize these melting events are often conducive to parts with spatially varying microstructures [5]. This structural heterogeneity is a double-edged sword. If uncontrolled, it leads to components with variable mechanical properties and difficult-to-predict performance and lifetime [6]. The hindered adoption of additive technologies in industrial applications is a direct consequence of that. Conversely, the deliberate introduction of site-specific structural heterogeneities in metals produced by AM can be used as a design feature to enhance their mechanical properties [7], or to add extra functionalities that are not achievable by conventional means [8]. |
| first_indexed | 2024-10-01T05:03:50Z |
| format | Journal Article |
| id | ntu-10356/171674 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:03:50Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1716742023-11-03T08:26:02Z Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy Matteo, Seita Le, Tan-Phuc Zhu, Chenyang School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Additively Manufactured Alloys Directional Reflectance Microscopy One of the defining features of fusion-based additive manufacturing (AM) processes is the localized melting of metals by a high-energy source, which fuses the material together point by point and layer by layer into a three-dimensional part [4]. The directional thermal gradients, variable cooling rates, and cyclic re-heating which characterize these melting events are often conducive to parts with spatially varying microstructures [5]. This structural heterogeneity is a double-edged sword. If uncontrolled, it leads to components with variable mechanical properties and difficult-to-predict performance and lifetime [6]. The hindered adoption of additive technologies in industrial applications is a direct consequence of that. Conversely, the deliberate introduction of site-specific structural heterogeneities in metals produced by AM can be used as a design feature to enhance their mechanical properties [7], or to add extra functionalities that are not achievable by conventional means [8]. 2023-11-03T08:10:31Z 2023-11-03T08:10:31Z 2023 Journal Article Matteo, S., Le, T. & Zhu, C. (2023). Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy. Microscopy and Microanalysis, 29(Supplement_1), 1411-1412. https://dx.doi.org/10.1093/micmic/ozad067.726 1431-9276 https://hdl.handle.net/10356/171674 10.1093/micmic/ozad067.726 37613769 2-s2.0-85168605084 Supplement_1 29 1411 1412 en Microscopy and Microanalysis © 2023 The Author(s). Published by Oxford University Press on behalf of the Microscopy Society of America. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Additively Manufactured Alloys Directional Reflectance Microscopy Matteo, Seita Le, Tan-Phuc Zhu, Chenyang Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title | Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title_full | Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title_fullStr | Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title_full_unstemmed | Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title_short | Optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| title_sort | optical orientation mapping of additively manufactured alloys using directional reflectance microscopy |
| topic | Engineering::Mechanical engineering Additively Manufactured Alloys Directional Reflectance Microscopy |
| url | https://hdl.handle.net/10356/171674 |
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