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High-resolution 3D strain and orientation mapping within a grain of a directed energy deposition laser additively manufactured superalloy
The industrialization of Laser Additive Manufacturing (LAM) is challenged by the undesirable microstructures and high residual stresses originating from the fast and complex solidification process. Non-destructive assessment of the mechanical performance controlling deformation patterning is therefo...
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| Published in: | Scripta materialia 2023-09, Vol.234, p.115579, Article 115579 |
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| Main Authors: | , , , , , , , , , , |
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| cited_by | cdi_FETCH-LOGICAL-c429t-dde150241b497d5b54ee049daf031a06d6dcdd471728e78d75a2d7c0197a36783 |
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| cites | cdi_FETCH-LOGICAL-c429t-dde150241b497d5b54ee049daf031a06d6dcdd471728e78d75a2d7c0197a36783 |
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| container_start_page | 115579 |
| container_title | Scripta materialia |
| container_volume | 234 |
| creator | Chen, Y. Tang, Y.T. Collins, D.M. Clark, S.J. Ludwig, W. Rodriguez-Lamas, R. Detlefs, C. Reed, R.C. Lee, P.D. Withers, P.J. Yildirim, C. |
| description | The industrialization of Laser Additive Manufacturing (LAM) is challenged by the undesirable microstructures and high residual stresses originating from the fast and complex solidification process. Non-destructive assessment of the mechanical performance controlling deformation patterning is therefore critical. Here, we use Dark Field X-ray Microscopy (DFXM) to map the 3D subsurface intragranular orientation and strain variations throughout a surface-breaking grain within a directed energy deposition nickel superalloy. DFXM results reveal a highly heterogenous 3D microstructure in terms of the local orientation and lattice strain. The grain comprises ≈ 5 μm-sized cells with alternating strain states, as high as 5 ×10−3, and orientation differences |
| doi_str_mv | 10.1016/j.scriptamat.2023.115579 |
| format | article |
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Advanced Photon Source (APS)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-resolution 3D strain and orientation mapping within a grain of a directed energy deposition laser additively manufactured superalloy</atitle><jtitle>Scripta materialia</jtitle><date>2023-09-01</date><risdate>2023</risdate><volume>234</volume><spage>115579</spage><pages>115579-</pages><artnum>115579</artnum><issn>1359-6462</issn><eissn>1872-8456</eissn><abstract>The industrialization of Laser Additive Manufacturing (LAM) is challenged by the undesirable microstructures and high residual stresses originating from the fast and complex solidification process. Non-destructive assessment of the mechanical performance controlling deformation patterning is therefore critical. 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| ispartof | Scripta materialia, 2023-09, Vol.234, p.115579, Article 115579 |
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| source | ScienceDirect Freedom Collection |
| subjects | Dark field x-ray microscopy Directed energy deposition Electron backscatter diffraction Engineering Sciences Laser additive manufacturing MATERIALS SCIENCE Microstructure |
| title | High-resolution 3D strain and orientation mapping within a grain of a directed energy deposition laser additively manufactured superalloy |
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