Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy
Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/35/e3sconf_icarae2023_01038.pdf |
| _version_ | 1797235245518422016 |
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| author | Palanisamy Chandramohan Raman Raghu Olubambi Peter Apata |
| author_facet | Palanisamy Chandramohan Raman Raghu Olubambi Peter Apata |
| author_sort | Palanisamy Chandramohan |
| collection | DOAJ |
| description | Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications. |
| first_indexed | 2024-04-24T16:44:54Z |
| format | Article |
| id | doaj.art-433abc82b6824576914906245f2f0652 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-24T16:44:54Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-433abc82b6824576914906245f2f06522024-03-29T08:30:07ZengEDP SciencesE3S Web of Conferences2267-12422024-01-015050103810.1051/e3sconf/202450501038e3sconf_icarae2023_01038Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloyPalanisamy Chandramohan0Raman Raghu1Olubambi Peter Apata2Department of Mechanical Engineering, Sri Ramakrishna Engineering CollegeDepartment of Mechanical Engineering, Sri Ramakrishna Engineering CollegeDepartment of Metallurgy, University of JohannesburgNickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/35/e3sconf_icarae2023_01038.pdf |
| spellingShingle | Palanisamy Chandramohan Raman Raghu Olubambi Peter Apata Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy E3S Web of Conferences |
| title | Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy |
| title_full | Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy |
| title_fullStr | Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy |
| title_full_unstemmed | Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy |
| title_short | Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy |
| title_sort | microstructural characteristics hardness and tribological behavior of additive manufactured cm247lc nickel super alloy |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/35/e3sconf_icarae2023_01038.pdf |
| work_keys_str_mv | AT palanisamychandramohan microstructuralcharacteristicshardnessandtribologicalbehaviorofadditivemanufacturedcm247lcnickelsuperalloy AT ramanraghu microstructuralcharacteristicshardnessandtribologicalbehaviorofadditivemanufacturedcm247lcnickelsuperalloy AT olubambipeterapata microstructuralcharacteristicshardnessandtribologicalbehaviorofadditivemanufacturedcm247lcnickelsuperalloy |