Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel
The present paper is focused on an experimental study of the damage-to-failure mechanism of additively manufactured 316L stainless steel specimens subjected to very high cycle fatigue (VHCF) loading. Ultrasonic axial tension-compression tests were carried out on specimens for up to 10<sup>9<...
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MDPI AG
2020-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/15/3293 |
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| author | Boris Voloskov Stanislav Evlashin Sarkis Dagesyan Sergey Abaimov Iskander Akhatov Ivan Sergeichev |
| author_facet | Boris Voloskov Stanislav Evlashin Sarkis Dagesyan Sergey Abaimov Iskander Akhatov Ivan Sergeichev |
| author_sort | Boris Voloskov |
| collection | DOAJ |
| description | The present paper is focused on an experimental study of the damage-to-failure mechanism of additively manufactured 316L stainless steel specimens subjected to very high cycle fatigue (VHCF) loading. Ultrasonic axial tension-compression tests were carried out on specimens for up to 10<sup>9</sup> cycles, and fracture surface analysis was performed. A fine granular area (FGA) surrounding internal defects was observed and formed a “fish-eye” fracture type. Nonmetallic inclusions and the lack of fusion within the fracture surfaces that were observed with SEM were assumed to be sources of damage initiation and growth of the FGAs. The characteristic diameter of the FGAs was ≈500 μm on the fracture surface and were induced by nonmetallic inclusions; this characteristic diameter was the same as that for the fracture surface induced by a lack of fusion. Fracture surfaces corresponding to the high cycle fatigue (HCF) regime were discussed as well to emphasize damage features related to the VHCF regime. |
| first_indexed | 2024-03-10T18:14:55Z |
| format | Article |
| id | doaj.art-5838c0f6207443aeb1af6d9a080a4f16 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T18:14:55Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5838c0f6207443aeb1af6d9a080a4f162023-11-20T07:48:44ZengMDPI AGMaterials1996-19442020-07-011315329310.3390/ma13153293Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless SteelBoris Voloskov0Stanislav Evlashin1Sarkis Dagesyan2Sergey Abaimov3Iskander Akhatov4Ivan Sergeichev5Center for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, RussiaDepartment of Physics, M.V. Lomonosov Moscow State University, Leninskiye Gory 1, bld. 2, 119991 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, RussiaThe present paper is focused on an experimental study of the damage-to-failure mechanism of additively manufactured 316L stainless steel specimens subjected to very high cycle fatigue (VHCF) loading. Ultrasonic axial tension-compression tests were carried out on specimens for up to 10<sup>9</sup> cycles, and fracture surface analysis was performed. A fine granular area (FGA) surrounding internal defects was observed and formed a “fish-eye” fracture type. Nonmetallic inclusions and the lack of fusion within the fracture surfaces that were observed with SEM were assumed to be sources of damage initiation and growth of the FGAs. The characteristic diameter of the FGAs was ≈500 μm on the fracture surface and were induced by nonmetallic inclusions; this characteristic diameter was the same as that for the fracture surface induced by a lack of fusion. Fracture surfaces corresponding to the high cycle fatigue (HCF) regime were discussed as well to emphasize damage features related to the VHCF regime.https://www.mdpi.com/1996-1944/13/15/3293additive manufacturing (AM)laser powder bed fusion (L-PBF)very high cycle fatigue (VHCF)fine granular area (FGA)fracture surfacecrack initiation |
| spellingShingle | Boris Voloskov Stanislav Evlashin Sarkis Dagesyan Sergey Abaimov Iskander Akhatov Ivan Sergeichev Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel Materials additive manufacturing (AM) laser powder bed fusion (L-PBF) very high cycle fatigue (VHCF) fine granular area (FGA) fracture surface crack initiation |
| title | Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel |
| title_full | Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel |
| title_fullStr | Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel |
| title_full_unstemmed | Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel |
| title_short | Very High Cycle Fatigue Behavior of Additively Manufactured 316L Stainless Steel |
| title_sort | very high cycle fatigue behavior of additively manufactured 316l stainless steel |
| topic | additive manufacturing (AM) laser powder bed fusion (L-PBF) very high cycle fatigue (VHCF) fine granular area (FGA) fracture surface crack initiation |
| url | https://www.mdpi.com/1996-1944/13/15/3293 |
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