Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy
This work presents a computational protocol, based on a variance analysis integrated with the bootstrap method, to investigate surface damage resulting from localization of plastic deformation in slip bands of a Ni-base superalloy. For assessment of fatigue crack initiation, surface roughness is int...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Kaunas University of Technology
2018-02-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/17684 |
| _version_ | 1819207000689475584 |
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| author | Hsin shen HO Marion RISBET Xavier FEAUGAS Maxence BIGERELLE Erliang ZHANG |
| author_facet | Hsin shen HO Marion RISBET Xavier FEAUGAS Maxence BIGERELLE Erliang ZHANG |
| author_sort | Hsin shen HO |
| collection | DOAJ |
| description | This work presents a computational protocol, based on a variance analysis integrated with the bootstrap method, to investigate surface damage resulting from localization of plastic deformation in slip bands of a Ni-base superalloy. For assessment of fatigue crack initiation, surface roughness is introduced to quantify the degree of slip irreversibility. The contribution of this study is to provide a most relevant roughness parameter that can extract the salient features of slip bands within damaged grains, and thus enabling the discrimination of damaged and undamaged grains for description of fatigue-induced surface damage. Results suggest that the maximum peak height (<em>S<sub>p</sub></em>) is the most relevant parameter. And a very pronounced variability of <em>S<sub>p</sub></em> values is observed for damaged grains.<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.24.1.17684">http://dx.doi.org/10.5755/j01.ms.24.1.17684</a></p> |
| first_indexed | 2024-12-23T05:16:32Z |
| format | Article |
| id | doaj.art-4bf6a69e4b0847369e51d064cce50405 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-23T05:16:32Z |
| publishDate | 2018-02-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-4bf6a69e4b0847369e51d064cce504052022-12-21T17:58:49ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892018-02-0124111211710.5755/j01.ms.24.1.176848812Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base SuperalloyHsin shen HO0Marion RISBET1Xavier FEAUGAS2Maxence BIGERELLE3Erliang ZHANG4Zhengzhou UniversityUniversité de Technologie de CompiègneUniversité de La RochelleUniversité de ValenciennesZhengzhou UniversityThis work presents a computational protocol, based on a variance analysis integrated with the bootstrap method, to investigate surface damage resulting from localization of plastic deformation in slip bands of a Ni-base superalloy. For assessment of fatigue crack initiation, surface roughness is introduced to quantify the degree of slip irreversibility. The contribution of this study is to provide a most relevant roughness parameter that can extract the salient features of slip bands within damaged grains, and thus enabling the discrimination of damaged and undamaged grains for description of fatigue-induced surface damage. Results suggest that the maximum peak height (<em>S<sub>p</sub></em>) is the most relevant parameter. And a very pronounced variability of <em>S<sub>p</sub></em> values is observed for damaged grains.<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.24.1.17684">http://dx.doi.org/10.5755/j01.ms.24.1.17684</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/17684surface roughnesssurface damageplastic strain localizationatomic force microscopyNi-base superalloy |
| spellingShingle | Hsin shen HO Marion RISBET Xavier FEAUGAS Maxence BIGERELLE Erliang ZHANG Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy Medžiagotyra surface roughness surface damage plastic strain localization atomic force microscopy Ni-base superalloy |
| title | Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy |
| title_full | Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy |
| title_fullStr | Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy |
| title_full_unstemmed | Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy |
| title_short | Surface Roughness Based Characterization of Slip Band for Damage Initiation in a Nickel Base Superalloy |
| title_sort | surface roughness based characterization of slip band for damage initiation in a nickel base superalloy |
| topic | surface roughness surface damage plastic strain localization atomic force microscopy Ni-base superalloy |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/17684 |
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