Academic Journal
Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour
| العنوان: | Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour |
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| المؤلفون: | Lizi Cheng, Xiaofeng Zhang, Jiacheng Xu, Temitope Olumide Olugbade, Gan Li, Dongdong Dong, Fucong Lyu, Haojie Kong, Mengke Huo, Jian Lu |
| المصدر: | Nano Materials Science, Vol 6, Iss 5, Pp 587-595 (2024) |
| بيانات النشر: | KeAi Communications Co., Ltd., 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | Architected materials, Selective laser melting, Surface mechanical attrition treatment, Structural analysis, Ductile alloy, Technology, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2589-9651 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2589965123000764; https://doaj.org/toc/2589-9651 |
| DOI: | 10.1016/j.nanoms.2023.11.008 |
| URL الوصول: | https://doaj.org/article/2360a63acaf94b849573cc8befb03e27 |
| رقم الانضمام: | edsdoj.2360a63acaf94b849573cc8befb03e27 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25899651 |
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| DOI: | 10.1016/j.nanoms.2023.11.008 |