Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour

Surface modifications can introduce natural gradients or structural hierarchy into human-made microlattices, making them simultaneously strong and tough. Herein, we describe our investigations of the mechanical properties and the underlying mechanisms of additively manufactured nickel–chromium super...

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Main Authors: Lizi Cheng, Xiaofeng Zhang, Jiacheng Xu, Temitope Olumide Olugbade, Gan Li, Dongdong Dong, Fucong Lyu, Haojie Kong, Mengke Huo, Jian Lu
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-10-01
Series:Nano Materials Science
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Online Access:http://www.sciencedirect.com/science/article/pii/S2589965123000764
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author Lizi Cheng
Xiaofeng Zhang
Jiacheng Xu
Temitope Olumide Olugbade
Gan Li
Dongdong Dong
Fucong Lyu
Haojie Kong
Mengke Huo
Jian Lu
author_facet Lizi Cheng
Xiaofeng Zhang
Jiacheng Xu
Temitope Olumide Olugbade
Gan Li
Dongdong Dong
Fucong Lyu
Haojie Kong
Mengke Huo
Jian Lu
author_sort Lizi Cheng
collection DOAJ
description Surface modifications can introduce natural gradients or structural hierarchy into human-made microlattices, making them simultaneously strong and tough. Herein, we describe our investigations of the mechanical properties and the underlying mechanisms of additively manufactured nickel–chromium superalloy (IN625) microlattices after surface mechanical attrition treatment (SMAT). Our results demonstrated that SMAT increased the yielding strength of these microlattices by more than 64.71% and also triggered a transition in their mechanical behaviour. Two primary failure modes were distinguished: weak global deformation, and layer-by-layer collapse, with the latter enhanced by SMAT. The significantly improved mechanical performance was attributable to the ultrafine and hard graded-nanograin layer induced by SMAT, which effectively leveraged the material and structural effects. These results were further validated by finite element analysis. This work provides insight into collapse behaviour and should facilitate the design of ultralight yet buckling-resistant cellular materials.
format Article
id doaj-art-2360a63acaf94b849573cc8befb03e27
institution OA Journals
issn 2589-9651
language English
publishDate 2024-10-01
publisher KeAi Communications Co., Ltd.
record_format Article
series Nano Materials Science
spelling doaj-art-2360a63acaf94b849573cc8befb03e272025-08-20T01:54:19ZengKeAi Communications Co., Ltd.Nano Materials Science2589-96512024-10-016558759510.1016/j.nanoms.2023.11.008Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviourLizi Cheng0Xiaofeng Zhang1Jiacheng Xu2Temitope Olumide Olugbade3Gan Li4Dongdong Dong5Fucong Lyu6Haojie Kong7Mengke Huo8Jian Lu9CityU-Shenzhen Futian Research Institute, Shenzhen, China; Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China; Department of Engineering, University of Cambridge, Cambridge, UKDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, China; National Engineering Laboratory for Modern Materials Surface Engineering Technology & The Key Lab of Guangdong for Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Science, 510650, Guangzhou, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, China; Mechanical and Electronic Engineering Department, School of Science and Engineering, University of Dundee, Dundee, UKDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, ChinaNational Engineering Laboratory for Modern Materials Surface Engineering Technology & The Key Lab of Guangdong for Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Science, 510650, Guangzhou, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, ChinaCityU-Shenzhen Futian Research Institute, Shenzhen, China; Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China; Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, China; Corresponding author. CityU-Shenzhen Futian Research Institute, Shenzhen, China.Surface modifications can introduce natural gradients or structural hierarchy into human-made microlattices, making them simultaneously strong and tough. Herein, we describe our investigations of the mechanical properties and the underlying mechanisms of additively manufactured nickel–chromium superalloy (IN625) microlattices after surface mechanical attrition treatment (SMAT). Our results demonstrated that SMAT increased the yielding strength of these microlattices by more than 64.71% and also triggered a transition in their mechanical behaviour. Two primary failure modes were distinguished: weak global deformation, and layer-by-layer collapse, with the latter enhanced by SMAT. The significantly improved mechanical performance was attributable to the ultrafine and hard graded-nanograin layer induced by SMAT, which effectively leveraged the material and structural effects. These results were further validated by finite element analysis. This work provides insight into collapse behaviour and should facilitate the design of ultralight yet buckling-resistant cellular materials.http://www.sciencedirect.com/science/article/pii/S2589965123000764Architected materialsSelective laser meltingSurface mechanical attrition treatmentStructural analysisDuctile alloy
spellingShingle Lizi Cheng
Xiaofeng Zhang
Jiacheng Xu
Temitope Olumide Olugbade
Gan Li
Dongdong Dong
Fucong Lyu
Haojie Kong
Mengke Huo
Jian Lu
Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
Nano Materials Science
Architected materials
Selective laser melting
Surface mechanical attrition treatment
Structural analysis
Ductile alloy
title Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
title_full Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
title_fullStr Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
title_full_unstemmed Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
title_short Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
title_sort nickel based superalloy architectures with surface mechanical attrition treatment compressive properties and collapse behaviour
topic Architected materials
Selective laser melting
Surface mechanical attrition treatment
Structural analysis
Ductile alloy
url http://www.sciencedirect.com/science/article/pii/S2589965123000764
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