Investigation on microstructure and hardness of nickel-alumina functionally graded material
In this research study, six-layered nickel-alumina (Ni-Al2O3) functionally graded material (FGM) was prepared using powder metallurgy (PM) method. The objectives of this study were to investigate the microstructure and hardness of the graded composite layer by layer. Using a cylindrical steel die, t...
| Main Authors: | , , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Elsevier Ltd
2020
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/35660/ http://umpir.ump.edu.my/id/eprint/35660/2/Investigation%20on%20microstructure%20and%20hardness%20of%20nickel-alumina%20functionally%20graded%20material_Abs.pdf |
| _version_ | 1848824837462556672 |
|---|---|
| author | S. N. S., Jamaludin M. I. A., Latiff D. M., Nuruzzaman N. M., Ismail S., Basri |
| author_facet | S. N. S., Jamaludin M. I. A., Latiff D. M., Nuruzzaman N. M., Ismail S., Basri |
| author_sort | S. N. S., Jamaludin |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | In this research study, six-layered nickel-alumina (Ni-Al2O3) functionally graded material (FGM) was prepared using powder metallurgy (PM) method. The objectives of this study were to investigate the microstructure and hardness of the graded composite layer by layer. Using a cylindrical steel die, the six-layered nickel-alumina graded structure was fabricated considering 0%, 20%, 40%, 60%, 80% and 100% weight percentage of ceramic concentration for different layers. A hydraulic press was used for fabrication of the FGM layered structure and 30 ton compaction load was applied. Considering two-step sintering cycle, sintering was carried out at sintering temperature 1200 °C and sintering time 4 h. The sintered specimens were characterized using optical microscopy (OM), scanning electron microscopy (SEM) and hardness testing. It was observed that uniform particle distribution within the graded layers and smooth microstructural transition occurred between adjacent layers. It was also observed that the interface lines are obvious, less wavy, straight and parallel which confirms proper layer stacking process. On the other hand, from the SEM micrographs, the existence of microcracks and voids are identified in the alumina-rich layer and mostly around alumina particles. |
| first_indexed | 2025-11-15T03:19:22Z |
| format | Conference or Workshop Item |
| id | ump-35660 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:19:22Z |
| publishDate | 2020 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-356602022-12-29T01:05:36Z http://umpir.ump.edu.my/id/eprint/35660/ Investigation on microstructure and hardness of nickel-alumina functionally graded material S. N. S., Jamaludin M. I. A., Latiff D. M., Nuruzzaman N. M., Ismail S., Basri T Technology (General) TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TS Manufactures In this research study, six-layered nickel-alumina (Ni-Al2O3) functionally graded material (FGM) was prepared using powder metallurgy (PM) method. The objectives of this study were to investigate the microstructure and hardness of the graded composite layer by layer. Using a cylindrical steel die, the six-layered nickel-alumina graded structure was fabricated considering 0%, 20%, 40%, 60%, 80% and 100% weight percentage of ceramic concentration for different layers. A hydraulic press was used for fabrication of the FGM layered structure and 30 ton compaction load was applied. Considering two-step sintering cycle, sintering was carried out at sintering temperature 1200 °C and sintering time 4 h. The sintered specimens were characterized using optical microscopy (OM), scanning electron microscopy (SEM) and hardness testing. It was observed that uniform particle distribution within the graded layers and smooth microstructural transition occurred between adjacent layers. It was also observed that the interface lines are obvious, less wavy, straight and parallel which confirms proper layer stacking process. On the other hand, from the SEM micrographs, the existence of microcracks and voids are identified in the alumina-rich layer and mostly around alumina particles. Elsevier Ltd 2020 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/35660/2/Investigation%20on%20microstructure%20and%20hardness%20of%20nickel-alumina%20functionally%20graded%20material_Abs.pdf S. N. S., Jamaludin and M. I. A., Latiff and D. M., Nuruzzaman and N. M., Ismail and S., Basri (2020) Investigation on microstructure and hardness of nickel-alumina functionally graded material. In: Materials Today: Proceedings, 4th Advanced Materials Conference 2018 , 27-28 November 2018 , Hilton Kuching Hotel, Kuching, Sarawak. pp. 127-132., 29 (Part 1). ISSN 2214-7853 (Published) https://doi.org/10.1016/j.matpr.2020.05.644 |
| spellingShingle | T Technology (General) TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TS Manufactures S. N. S., Jamaludin M. I. A., Latiff D. M., Nuruzzaman N. M., Ismail S., Basri Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title | Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title_full | Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title_fullStr | Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title_full_unstemmed | Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title_short | Investigation on microstructure and hardness of nickel-alumina functionally graded material |
| title_sort | investigation on microstructure and hardness of nickel-alumina functionally graded material |
| topic | T Technology (General) TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TS Manufactures |
| url | http://umpir.ump.edu.my/id/eprint/35660/ http://umpir.ump.edu.my/id/eprint/35660/ http://umpir.ump.edu.my/id/eprint/35660/2/Investigation%20on%20microstructure%20and%20hardness%20of%20nickel-alumina%20functionally%20graded%20material_Abs.pdf |