High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition
Compositionally graded Fex(CoCrNi)100-x medium-entropy alloys (MEAs) were fabricated via laser-direct energy deposition. The effects of Fe content and heat treatment on microstructure, mechanical properties, and strengthening behavior were investigated. Increasing Fe content led to a phase transitio...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-04-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2025.2462176 |
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| author | Yu Liao Yisi Song Mengyao Zheng Hao Zhang Beier Sun Yunjiao Niu Chuanwei Li Jianfeng Gu |
| author_facet | Yu Liao Yisi Song Mengyao Zheng Hao Zhang Beier Sun Yunjiao Niu Chuanwei Li Jianfeng Gu |
| author_sort | Yu Liao |
| collection | DOAJ |
| description | Compositionally graded Fex(CoCrNi)100-x medium-entropy alloys (MEAs) were fabricated via laser-direct energy deposition. The effects of Fe content and heat treatment on microstructure, mechanical properties, and strengthening behavior were investigated. Increasing Fe content led to a phase transition from FCC to BCC, enabling varied combinations of hardness and ductility. Quenching improved the hardness due to the enhanced martensitic matrix strengthening, while tempering promoted the formation of Cr-rich nano-clusters, further improving the hardness. Our study provides valuable insights into the design of low-cost and high-performance ferrous MEAs (Fe-MEAs) and offers a reproducible framework for developing other high-property alloy systems. |
| format | Article |
| id | doaj-art-d50700cdf3774498bf08e9ec804734e5 |
| institution | OA Journals |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-d50700cdf3774498bf08e9ec804734e52025-08-20T02:38:21ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-04-0113437338210.1080/21663831.2025.2462176High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy depositionYu Liao0Yisi Song1Mengyao Zheng2Hao Zhang3Beier Sun4Yunjiao Niu5Chuanwei Li6Jianfeng Gu7Institute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaCompositionally graded Fex(CoCrNi)100-x medium-entropy alloys (MEAs) were fabricated via laser-direct energy deposition. The effects of Fe content and heat treatment on microstructure, mechanical properties, and strengthening behavior were investigated. Increasing Fe content led to a phase transition from FCC to BCC, enabling varied combinations of hardness and ductility. Quenching improved the hardness due to the enhanced martensitic matrix strengthening, while tempering promoted the formation of Cr-rich nano-clusters, further improving the hardness. Our study provides valuable insights into the design of low-cost and high-performance ferrous MEAs (Fe-MEAs) and offers a reproducible framework for developing other high-property alloy systems.https://www.tandfonline.com/doi/10.1080/21663831.2025.2462176High-throughput synthesishigh- and medium-entropy alloyslaser-direct energy depositionstrengthening behaviorheat treatment |
| spellingShingle | Yu Liao Yisi Song Mengyao Zheng Hao Zhang Beier Sun Yunjiao Niu Chuanwei Li Jianfeng Gu High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition Materials Research Letters High-throughput synthesis high- and medium-entropy alloys laser-direct energy deposition strengthening behavior heat treatment |
| title | High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition |
| title_full | High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition |
| title_fullStr | High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition |
| title_full_unstemmed | High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition |
| title_short | High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition |
| title_sort | high throughput synthesis and strengthening behavior of fex cocrni 100 x medium entropy alloys via laser direct energy deposition |
| topic | High-throughput synthesis high- and medium-entropy alloys laser-direct energy deposition strengthening behavior heat treatment |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2025.2462176 |
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