Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods
In this study, three different methods, namely, selective laser melting (SLM), spark plasma sintering (SPS), and casting techniques, were utilized to fabricate nickel alloy 718 samples. The effects of the fabrication methods on the mechanical and thermal properties of the samples were evaluated and...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421002702 |
| _version_ | 1818612452937433088 |
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| author | Abbas Saeed Hakeem Faheemuddin Patel Naeem Minhas Ameen Malkawi Zahra Aleid Muhammad Ali Ehsan Hussain Sharrofna Ahmed Al Ghanim |
| author_facet | Abbas Saeed Hakeem Faheemuddin Patel Naeem Minhas Ameen Malkawi Zahra Aleid Muhammad Ali Ehsan Hussain Sharrofna Ahmed Al Ghanim |
| author_sort | Abbas Saeed Hakeem |
| collection | DOAJ |
| description | In this study, three different methods, namely, selective laser melting (SLM), spark plasma sintering (SPS), and casting techniques, were utilized to fabricate nickel alloy 718 samples. The effects of the fabrication methods on the mechanical and thermal properties of the samples were evaluated and correlated to the developed microstructure. All three methods produced samples with dense microstructure and high structural integrity. The choice of the fabrication method significantly affected the properties of nickel alloy 718. The SLM process provided highly compacted samples with high hardness values compared with those offered by the other two techniques. However, the SPSed sample fabricated at 1000 °C showed a higher thermal expansion (13.9 ppm K−1) than did the SLM and cast samples. The SPS temperature of 1000 °C was found to be optimum as a decrease in the SPS temperature to 900 °C resulted in a considerable reduction in the density. Moreover, samples produced by melting at 1450 °C and cast sample showed the highest thermal conductivity (10.3 W/m·k) amongst the samples. |
| first_indexed | 2024-12-16T15:46:27Z |
| format | Article |
| id | doaj.art-362ae02ec2474ee1a63d537cfe9c8f23 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-16T15:46:27Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-362ae02ec2474ee1a63d537cfe9c8f232022-12-21T22:25:47ZengElsevierJournal of Materials Research and Technology2238-78542021-05-0112870881Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methodsAbbas Saeed Hakeem0Faheemuddin Patel1Naeem Minhas2Ameen Malkawi3Zahra Aleid4Muhammad Ali Ehsan5Hussain Sharrofna6Ahmed Al Ghanim7Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia; Corresponding author.Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi ArabiaBaker Hughes, Dhahran Technology Center, Dhahran Techno Valley, Dhahran, 31952, Saudi Arabia; Corresponding author.Baker Hughes, Dhahran Technology Center, Dhahran Techno Valley, Dhahran, 31952, Saudi ArabiaBaker Hughes, Dhahran Technology Center, Dhahran Techno Valley, Dhahran, 31952, Saudi ArabiaCenter of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi ArabiaBaker Hughes, Dhahran Technology Center, Dhahran Techno Valley, Dhahran, 31952, Saudi ArabiaMechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi ArabiaIn this study, three different methods, namely, selective laser melting (SLM), spark plasma sintering (SPS), and casting techniques, were utilized to fabricate nickel alloy 718 samples. The effects of the fabrication methods on the mechanical and thermal properties of the samples were evaluated and correlated to the developed microstructure. All three methods produced samples with dense microstructure and high structural integrity. The choice of the fabrication method significantly affected the properties of nickel alloy 718. The SLM process provided highly compacted samples with high hardness values compared with those offered by the other two techniques. However, the SPSed sample fabricated at 1000 °C showed a higher thermal expansion (13.9 ppm K−1) than did the SLM and cast samples. The SPS temperature of 1000 °C was found to be optimum as a decrease in the SPS temperature to 900 °C resulted in a considerable reduction in the density. Moreover, samples produced by melting at 1450 °C and cast sample showed the highest thermal conductivity (10.3 W/m·k) amongst the samples.http://www.sciencedirect.com/science/article/pii/S2238785421002702Selective laser meltingSpark plasma sinteringCastingThermomechanical propertiesMicrostructureInconel 718 |
| spellingShingle | Abbas Saeed Hakeem Faheemuddin Patel Naeem Minhas Ameen Malkawi Zahra Aleid Muhammad Ali Ehsan Hussain Sharrofna Ahmed Al Ghanim Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods Journal of Materials Research and Technology Selective laser melting Spark plasma sintering Casting Thermomechanical properties Microstructure Inconel 718 |
| title | Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods |
| title_full | Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods |
| title_fullStr | Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods |
| title_full_unstemmed | Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods |
| title_short | Comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting, spark plasma sintering, and casting methods |
| title_sort | comparative evaluation of thermal and mechanical properties of nickel alloy 718 prepared using selective laser melting spark plasma sintering and casting methods |
| topic | Selective laser melting Spark plasma sintering Casting Thermomechanical properties Microstructure Inconel 718 |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421002702 |
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