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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202105096
|2 doi
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|a pubmed24n1566.xml
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|a eng
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|a Barriobero-Vila, Pere
|e verfasserin
|4 aut
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| 245 |
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|a Interface-Mediated Twinning-Induced Plasticity in a Fine Hexagonal Microstructure Generated by Additive Manufacturing
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 13.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Deutsches Zentrum fur Luft- und Raumfahrt. Advanced Materials published by Wiley-VCH GmbH.
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|a The grain size is a determinant microstructural feature to enable the activation of deformation twinning in hexagonal close-packed (hcp) metals. Although deformation twinning is one of the most effective mechanisms for improving the strength-ductility trade-off of structural alloys, its activation is reduced with decreasing grain size. This work reports the discovery of the activation of deformation twinning in a fine-grained hcp microstructure by introducing ductile body-centered cubic (bcc) nano-layer interfaces. The fast solidification and cooling conditions of laser-based additive manufacturing are exploited to obtain a fine microstructure that, coupled with an intensified intrinsic heat treatment, permits to generate the bcc nano-layers. In situ high-energy synchrotron X-ray diffraction allows tracking the activation and evolution of mechanical twinning in real-time. The findings obtained show the potential of ductile nano-layering for the novel design of hcp damage tolerant materials with improved life spans
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|a Journal Article
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|a deformation twinning
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|a hexagonal close-packed alloys
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|a in situ high-energy synchrotron X-ray diffraction
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|a metal 3D printing
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|a structural properties
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|a Vallejos, Juan Manuel
|e verfasserin
|4 aut
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|a Gussone, Joachim
|e verfasserin
|4 aut
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|a Haubrich, Jan
|e verfasserin
|4 aut
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|a Kelm, Klemens
|e verfasserin
|4 aut
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|a Stark, Andreas
|e verfasserin
|4 aut
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|a Schell, Norbert
|e verfasserin
|4 aut
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|a Requena, Guillermo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 52 vom: 30. Dez., Seite e2105096
|w (DE-627)NLM098206397
|x 1521-4095
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|g volume:33
|g year:2021
|g number:52
|g day:30
|g month:12
|g pages:e2105096
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|u http://dx.doi.org/10.1002/adma.202105096
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