{"title":"AlCrFe2NiCuMox 高熵合金的显微结构演变和强化机制","authors":"Junhui Zhao, Jinshuai Zhang, Xiaoyi Li, Xujie Gao, Nana Guo, Chengcheng Shi, Guangming Zhu, Jinhua Ding, Fengshi Yin","doi":"10.1007/s12540-024-01687-9","DOIUrl":null,"url":null,"abstract":"<div><p>The AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> multiphase high entropy alloys were designed, prepared and characterized. The effect of Mo addition on the microstructure evolution and mechanical properties of AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> high entropy alloys was investigated. The microstructure of AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> alloy consists of B2 + BCC + FCC + σ phases with a typical dendritic morphology. The addition of the Mo element promotes the generation of the σ phase in the alloy, while the B2 phase is gradually replaced by the σ phase. The hardness test and room temperature compression test results show that AlCrFe<sub>2</sub>NiCuMo<sub>0.6</sub> alloy has a compressive rupture strength of 2030 MPa, a yield strength of 1462 MPa, a compressive strain limit of 18.18%, and a hardness of 488 HV, which has good comprehensive mechanical properties. With the increase of Mo element addition, the BCC solid solution phase and the ordered B2 phase separated in the alloy, and the σ phase precipitate from the BCC solid solution phase, and the mechanical properties of the alloy become worse at room temperature.</p><h3>Graphic Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"30 11","pages":"3005 - 3013"},"PeriodicalIF":3.3000,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure Evolution and Strengthening Mechanism of AlCrFe2NiCuMox High Entropy Alloys\",\"authors\":\"Junhui Zhao, Jinshuai Zhang, Xiaoyi Li, Xujie Gao, Nana Guo, Chengcheng Shi, Guangming Zhu, Jinhua Ding, Fengshi Yin\",\"doi\":\"10.1007/s12540-024-01687-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> multiphase high entropy alloys were designed, prepared and characterized. The effect of Mo addition on the microstructure evolution and mechanical properties of AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> high entropy alloys was investigated. The microstructure of AlCrFe<sub>2</sub>NiCuMo<sub><i>x</i></sub> alloy consists of B2 + BCC + FCC + σ phases with a typical dendritic morphology. The addition of the Mo element promotes the generation of the σ phase in the alloy, while the B2 phase is gradually replaced by the σ phase. The hardness test and room temperature compression test results show that AlCrFe<sub>2</sub>NiCuMo<sub>0.6</sub> alloy has a compressive rupture strength of 2030 MPa, a yield strength of 1462 MPa, a compressive strain limit of 18.18%, and a hardness of 488 HV, which has good comprehensive mechanical properties. With the increase of Mo element addition, the BCC solid solution phase and the ordered B2 phase separated in the alloy, and the σ phase precipitate from the BCC solid solution phase, and the mechanical properties of the alloy become worse at room temperature.</p><h3>Graphic Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":703,\"journal\":{\"name\":\"Metals and Materials International\",\"volume\":\"30 11\",\"pages\":\"3005 - 3013\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-05-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metals and Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12540-024-01687-9\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metals and Materials International","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12540-024-01687-9","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Microstructure Evolution and Strengthening Mechanism of AlCrFe2NiCuMox High Entropy Alloys
The AlCrFe2NiCuMox multiphase high entropy alloys were designed, prepared and characterized. The effect of Mo addition on the microstructure evolution and mechanical properties of AlCrFe2NiCuMox high entropy alloys was investigated. The microstructure of AlCrFe2NiCuMox alloy consists of B2 + BCC + FCC + σ phases with a typical dendritic morphology. The addition of the Mo element promotes the generation of the σ phase in the alloy, while the B2 phase is gradually replaced by the σ phase. The hardness test and room temperature compression test results show that AlCrFe2NiCuMo0.6 alloy has a compressive rupture strength of 2030 MPa, a yield strength of 1462 MPa, a compressive strain limit of 18.18%, and a hardness of 488 HV, which has good comprehensive mechanical properties. With the increase of Mo element addition, the BCC solid solution phase and the ordered B2 phase separated in the alloy, and the σ phase precipitate from the BCC solid solution phase, and the mechanical properties of the alloy become worse at room temperature.
期刊介绍：
Metals and Materials International publishes original papers and occasional critical reviews on all aspects of research and technology in materials engineering: physical metallurgy, materials science, and processing of metals and other materials. Emphasis is placed on those aspects of the science of materials that are concerned with the relationships among the processing, structure and properties (mechanical, chemical, electrical, electrochemical, magnetic and optical) of materials. Aspects of processing include the melting, casting, and fabrication with the thermodynamics, kinetics and modeling.
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