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Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy

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dc.contributor.author Malatji, N
dc.contributor.author Lengopeng, T
dc.contributor.author Pityana, Sisa L
dc.contributor.author Popoola, API
dc.date.accessioned 2020-12-03T13:26:39Z
dc.date.available 2020-12-03T13:26:39Z
dc.date.issued 2020-10
dc.identifier.citation Malatji, N. et al. 2020. Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy. The International Journal of Advanced Manufacturing Technology, vol. 111: 2021–2029 en_US
dc.identifier.issn 0268-3768
dc.identifier.issn 1433-3015
dc.identifier.uri https://link.springer.com/article/10.1007/s00170-020-06220-x
dc.identifier.uri https://rdcu.be/caaWr
dc.identifier.uri https://doi.org/10.1007/s00170-020-06220-x
dc.identifier.uri http://hdl.handle.net/10204/11687
dc.description Copyright: 2020 Springer. Due to copyright restrictions, the attached PDF file only contains the abstract version of the full-text item. For access to the full-text item, please consult the publisher's website. The definitive version of the work is published at ttps://doi.org/10.1007/s00170-020-06220-x. A free full-text non-print version of the published item can be viewed at https://rdcu.be/caaWr en_US
dc.description.abstract The comprehensive properties exhibited by dual-phase high-entropy alloys (HEA) increase their prospects of finding use in engineering applications. However, the distribution of the phases that are present in the alloys has a significant effect on their mechanical performance. Therefore, the homogeneity of microstructure in these alloys remains critical for the improvement of their mechanical properties. In this study, AlCrFeCuNi HEA was fabricated by a direct laser metal deposition technique. The effect of heat treatment on the microstructure, microhardness, and wear performance of the alloy was investigated. The microstructural analysis revealed that the alloy was characterized by a dendritic microstructure with a dual-phase (BCC + FCC) composition. Microstructural changes were achieved at all heat treatment temperatures with grain growth starting to occur at 950 °C and dissolution of the BCC phase happening at 1100 °C. Good anti-wear characteristics were obtained for alloy heat treated at 950 °C. en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Worklist;23939
dc.subject Alloys en_US
dc.subject High-entropy alloys en_US
dc.subject HEA en_US
dc.title Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy en_US
dc.type Article en_US
dc.identifier.apacitation Malatji, N., Lengopeng, T., Pityana, S. L., & Popoola, A. (2020). Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy. http://hdl.handle.net/10204/11687 en_ZA
dc.identifier.chicagocitation Malatji, N, T Lengopeng, Sisa L Pityana, and API Popoola "Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy." (2020) http://hdl.handle.net/10204/11687 en_ZA
dc.identifier.vancouvercitation Malatji N, Lengopeng T, Pityana SL, Popoola A. Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy. 2020; http://hdl.handle.net/10204/11687. en_ZA
dc.identifier.ris TY - Article AU - Malatji, N AU - Lengopeng, T AU - Pityana, Sisa L AU - Popoola, API AB - The comprehensive properties exhibited by dual-phase high-entropy alloys (HEA) increase their prospects of finding use in engineering applications. However, the distribution of the phases that are present in the alloys has a significant effect on their mechanical performance. Therefore, the homogeneity of microstructure in these alloys remains critical for the improvement of their mechanical properties. In this study, AlCrFeCuNi HEA was fabricated by a direct laser metal deposition technique. The effect of heat treatment on the microstructure, microhardness, and wear performance of the alloy was investigated. The microstructural analysis revealed that the alloy was characterized by a dendritic microstructure with a dual-phase (BCC + FCC) composition. Microstructural changes were achieved at all heat treatment temperatures with grain growth starting to occur at 950 °C and dissolution of the BCC phase happening at 1100 °C. Good anti-wear characteristics were obtained for alloy heat treated at 950 °C. DA - 2020-10 DB - ResearchSpace DP - CSIR KW - Alloys KW - High-entropy alloys KW - HEA LK - https://researchspace.csir.co.za PY - 2020 SM - 0268-3768 SM - 1433-3015 T1 - Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy TI - Effect of heat treatment on the microstructure, microhardness, and wear characteristics of AlCrFeCuNi high-entropy alloy UR - http://hdl.handle.net/10204/11687 ER - en_ZA


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