| Autor: |
Y. Chen, Y.T. Tang, D.M. Collins, S.J. Clark, W. Ludwig, R. Rodriguez-Lamas, C. Detlefs, R.C. Reed, P.D. Lee, P.J. Withers, C. Yildirim |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Popis: |
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 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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