Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys
Metallic materials composed of alternating soft and hard phases can be tailored for desirable strength-ductility combinations. In this work, (AlNi)x(FeCr)100-x (x = 40, 50 and 60) A2-B2 dual-phase medium-entropy alloys (MEAs) fabricated using an arc-melting furnace were studied. Fractions and morpho...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424030011 |
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| author | Guijiang Diao Mingyu Wu Anqiang He Zhen Xu Dhruv Bajaj Daolun Chen Ranran Fang Anatoliy Vorobyev Q.Y. Li Dongyang Li |
| author_facet | Guijiang Diao Mingyu Wu Anqiang He Zhen Xu Dhruv Bajaj Daolun Chen Ranran Fang Anatoliy Vorobyev Q.Y. Li Dongyang Li |
| author_sort | Guijiang Diao |
| collection | DOAJ |
| description | Metallic materials composed of alternating soft and hard phases can be tailored for desirable strength-ductility combinations. In this work, (AlNi)x(FeCr)100-x (x = 40, 50 and 60) A2-B2 dual-phase medium-entropy alloys (MEAs) fabricated using an arc-melting furnace were studied. Fractions and morphologies of (Fe, Cr)-rich A2 and (Al, Ni)-rich B2 phases in the alloys were modified by simply adjusting the ratio of (AlNi) to (FeCr), based on phase diagrams calculated using Thermo-Calc software. The (AlNi)x(FeCr)100-x alloys showed different microstructural features, including interdendritic regions with irregular A2-B2 lamellae (in all three alloys), and dendrite cores with different morphologies such as A2 matrix embedded with B2 particles (x = 40), A2-B2 weave-like structure (x = 50), and B2 matrix embedded with A2 nanoparticles (x = 60). Based on micro-indentation tests, all the core zones showed higher hardness than interdendritic regions, benefiting from their weave-like or particle-dispersed microstructure. Compressive tests and EBSD analyses indicated that the presence of the core zone having a structure of B2 matrix embedded with A2 nanoparticles was particularly effective for enhancing the strain-hardening capacity and wear resistance. This study demonstrates a simple way, via directly adjusting the fraction ratio of (AlNi) to (FeCr), to control the heterogeneous structure of this MEA system for desirable properties, which can be extended to other A2-B2 dual-phase multi-principal element alloy systems. |
| format | Article |
| id | doaj-art-f80f0097a4a749cb9dc261a5bdb8a786 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-f80f0097a4a749cb9dc261a5bdb8a7862025-01-19T06:25:47ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013419211932Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloysGuijiang Diao0Mingyu Wu1Anqiang He2Zhen Xu3Dhruv Bajaj4Daolun Chen5Ranran Fang6Anatoliy Vorobyev7Q.Y. Li8Dongyang Li9Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G2H5, CanadaDepartment of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G2H5, CanadaDepartment of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G2H5, CanadaDepartment of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G2H5, CanadaDepartment of Mechanical, Industrial and Mechatronics Engineering, Toronto Metropolitan University, Toronto, Ontario, M5B 2K3, CanadaDepartment of Mechanical, Industrial and Mechatronics Engineering, Toronto Metropolitan University, Toronto, Ontario, M5B 2K3, CanadaSchool of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, People's Republic of ChinaSchool of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, People's Republic of ChinaInstitute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou, 510632, People's Republic of ChinaDepartment of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G2H5, Canada; Corresponding author.Metallic materials composed of alternating soft and hard phases can be tailored for desirable strength-ductility combinations. In this work, (AlNi)x(FeCr)100-x (x = 40, 50 and 60) A2-B2 dual-phase medium-entropy alloys (MEAs) fabricated using an arc-melting furnace were studied. Fractions and morphologies of (Fe, Cr)-rich A2 and (Al, Ni)-rich B2 phases in the alloys were modified by simply adjusting the ratio of (AlNi) to (FeCr), based on phase diagrams calculated using Thermo-Calc software. The (AlNi)x(FeCr)100-x alloys showed different microstructural features, including interdendritic regions with irregular A2-B2 lamellae (in all three alloys), and dendrite cores with different morphologies such as A2 matrix embedded with B2 particles (x = 40), A2-B2 weave-like structure (x = 50), and B2 matrix embedded with A2 nanoparticles (x = 60). Based on micro-indentation tests, all the core zones showed higher hardness than interdendritic regions, benefiting from their weave-like or particle-dispersed microstructure. Compressive tests and EBSD analyses indicated that the presence of the core zone having a structure of B2 matrix embedded with A2 nanoparticles was particularly effective for enhancing the strain-hardening capacity and wear resistance. This study demonstrates a simple way, via directly adjusting the fraction ratio of (AlNi) to (FeCr), to control the heterogeneous structure of this MEA system for desirable properties, which can be extended to other A2-B2 dual-phase multi-principal element alloy systems.http://www.sciencedirect.com/science/article/pii/S2238785424030011AlCrFeNi alloy systemA2-B2 dual phaseMicrostructure controlBack-stress strengtheningWear |
| spellingShingle | Guijiang Diao Mingyu Wu Anqiang He Zhen Xu Dhruv Bajaj Daolun Chen Ranran Fang Anatoliy Vorobyev Q.Y. Li Dongyang Li Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys Journal of Materials Research and Technology AlCrFeNi alloy system A2-B2 dual phase Microstructure control Back-stress strengthening Wear |
| title | Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys |
| title_full | Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys |
| title_fullStr | Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys |
| title_full_unstemmed | Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys |
| title_short | Adjusting (AlNi)/(FeCr) ratio to tailor microstructure and properties of A2-B2 dual-phase (AlNi)x(FeCr)100-x medium-entropy alloys |
| title_sort | adjusting alni fecr ratio to tailor microstructure and properties of a2 b2 dual phase alni x fecr 100 x medium entropy alloys |
| topic | AlCrFeNi alloy system A2-B2 dual phase Microstructure control Back-stress strengthening Wear |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424030011 |
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