Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing

Additive manufacturing offers precise control over part geometry and material composition, making it ideal for creating functionally integrated materials (FIMs). A Ni-Al FIM was fabricated using directed energy deposition (DED) to investigate how local composition variations affect microstructure, p...

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Main Authors: Xin Wang, Jacob Norman, Baolong Zheng, Benjamin MacDonald, Enrique J. Lavernia, Julie M. Schoenung
Format: Article
Language:English
Published: Taylor & Francis Group 2025-04-01
Series:Materials Research Letters
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2024.2448499
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author Xin Wang
Jacob Norman
Baolong Zheng
Benjamin MacDonald
Enrique J. Lavernia
Julie M. Schoenung
author_facet Xin Wang
Jacob Norman
Baolong Zheng
Benjamin MacDonald
Enrique J. Lavernia
Julie M. Schoenung
author_sort Xin Wang
collection DOAJ
description Additive manufacturing offers precise control over part geometry and material composition, making it ideal for creating functionally integrated materials (FIMs). A Ni-Al FIM was fabricated using directed energy deposition (DED) to investigate how local composition variations affect microstructure, precipitation, and mechanical behavior. Advanced microscopy characterization revealed a novel grain structure with distinct compositional regions and a composition transition interface. These distinct regions within a single grain led to abrupt changes in the deformation response, as demonstrated through in-situ micropillar compression. These findings underscore the potential of additive manufacturing to engineer material behavior at the microscale, advancing materials design and manufacturing.
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publishDate 2025-04-01
publisher Taylor & Francis Group
record_format Article
series Materials Research Letters
spelling doaj-art-d98c3947fd5a4f9c9a8f6d2429cf0ef72025-08-20T03:05:26ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-04-0113430131010.1080/21663831.2024.2448499Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturingXin Wang0Jacob Norman1Baolong Zheng2Benjamin MacDonald3Enrique J. Lavernia4Julie M. Schoenung5Department of Metallurgical and Materials Engineering, University of Alabama, Tuscaloosa, AL, USADepartment of Materials Science and Engineering, University of California Irvine, Irvine, CA, USADepartment of Materials Science and Engineering, University of California Irvine, Irvine, CA, USADepartment of Materials Science and Engineering, University of California Irvine, Irvine, CA, USADepartment of Materials Science and Engineering, University of California Irvine, Irvine, CA, USADepartment of Materials Science and Engineering, University of California Irvine, Irvine, CA, USAAdditive manufacturing offers precise control over part geometry and material composition, making it ideal for creating functionally integrated materials (FIMs). A Ni-Al FIM was fabricated using directed energy deposition (DED) to investigate how local composition variations affect microstructure, precipitation, and mechanical behavior. Advanced microscopy characterization revealed a novel grain structure with distinct compositional regions and a composition transition interface. These distinct regions within a single grain led to abrupt changes in the deformation response, as demonstrated through in-situ micropillar compression. These findings underscore the potential of additive manufacturing to engineer material behavior at the microscale, advancing materials design and manufacturing.https://www.tandfonline.com/doi/10.1080/21663831.2024.2448499Additive manufacturingfunctionally integrated materialsNi-based alloysmechanical behaviorcomposition transition interface
spellingShingle Xin Wang
Jacob Norman
Baolong Zheng
Benjamin MacDonald
Enrique J. Lavernia
Julie M. Schoenung
Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
Materials Research Letters
Additive manufacturing
functionally integrated materials
Ni-based alloys
mechanical behavior
composition transition interface
title Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
title_full Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
title_fullStr Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
title_full_unstemmed Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
title_short Micro-mechanical behavior of a single grain with atomic-level variations in composition via additive manufacturing
title_sort micro mechanical behavior of a single grain with atomic level variations in composition via additive manufacturing
topic Additive manufacturing
functionally integrated materials
Ni-based alloys
mechanical behavior
composition transition interface
url https://www.tandfonline.com/doi/10.1080/21663831.2024.2448499
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