The Gradient Effect on Cyclic Behavior of 316L Stainless Steel in the Ultrasonic Bending Test
Nanoindentation measurements were conducted to investigate the high-cycle response of 316L stainless steel in bending fatigue. Hardness variation owing to the gradient flexure stress amplitude for different curvatures was plotted along with the thickness and length, respectively. Scanning electron microscopy (SEM) was subsequently conducted to explore the deformation characteristics in multiple layers, which had cyclic gradient stress, on the cross-section of specimens. The nanoindentation results indicated that the cyclic hardening response of 316L stainless steel is correlated with the level of stress amplitude in the high-cycle fatigue (HCF) regime. Furthermore, an analytical model was proposed to clarify the relationship between nanohardness and stress amplitude. Finally, the evolution of damage accumulation due to irreversible plastic deformation is continuous during stress reduction up to the neighboring zone at the neutral surface of the flexure beam in some individual grains.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:17 |
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| Enthalten in: |
Materials (Basel, Switzerland) - 17(2024), 7 vom: 04. Apr. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Hu, Yongtao [VerfasserIn] |
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| Links: |
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| Themen: |
Flexure fatigue |
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| Anmerkungen: |
Date Revised 15.04.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/ma17071657 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM371014808 |
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| 520 | |a Nanoindentation measurements were conducted to investigate the high-cycle response of 316L stainless steel in bending fatigue. Hardness variation owing to the gradient flexure stress amplitude for different curvatures was plotted along with the thickness and length, respectively. Scanning electron microscopy (SEM) was subsequently conducted to explore the deformation characteristics in multiple layers, which had cyclic gradient stress, on the cross-section of specimens. The nanoindentation results indicated that the cyclic hardening response of 316L stainless steel is correlated with the level of stress amplitude in the high-cycle fatigue (HCF) regime. Furthermore, an analytical model was proposed to clarify the relationship between nanohardness and stress amplitude. Finally, the evolution of damage accumulation due to irreversible plastic deformation is continuous during stress reduction up to the neighboring zone at the neutral surface of the flexure beam in some individual grains | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a flexure fatigue | |
| 650 | 4 | |a internal failure | |
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| 650 | 4 | |a ultrasonic fatigue testing | |
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| 700 | 1 | |a Liu, Yongjie |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Lang |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Chong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Qingyuan |e verfasserin |4 aut | |
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