High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems
This study systematically reviews strengthening mechanisms and fabrication technologies of high-temperature alloys from conventional systems to complex concentrated alloys (CCAs). The dual-phase control in Ni/Co/Fe-based alloys and CCAs is shown to achieve performance enhancement through synergistic...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425008488 |
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| author | Yanying Li Hao Lv Qian Yuan Jun Tan Zhongxue Feng Zhaosong Chen Jianwei Xu |
| author_facet | Yanying Li Hao Lv Qian Yuan Jun Tan Zhongxue Feng Zhaosong Chen Jianwei Xu |
| author_sort | Yanying Li |
| collection | DOAJ |
| description | This study systematically reviews strengthening mechanisms and fabrication technologies of high-temperature alloys from conventional systems to complex concentrated alloys (CCAs). The dual-phase control in Ni/Co/Fe-based alloys and CCAs is shown to achieve performance enhancement through synergistic solid-solution strengthening and precipitation strengthening. Advanced processing routes (including vacuum induction melting-electroslag remelting-vacuum arc remelting triple smelting, powder metallurgy, and laser additive manufacturing) are demonstrated to refine alloy purity, eliminate macro-segregation, and enable near-net shaping of complex components. Comparative analysis reveals that Ni/Co/Fe-based alloys maintain a yielding strength >500 MPa below 1000 °C, Mo-based alloys stabilize at 1000–1600 °C, W/Ta-based alloys retain structural integrity >1600 °C, while CCAs exhibit unprecedented ultimate tensile strength >1800 MPa across 25–1700 °C via multi-principal element interactions. To address hypersonic and deep-space extreme conditions, critical challenges are identified: extending second phase stability beyond 1200 °C, developing thermomechanical-oxidation coupled damage models, and implementing multiscale microstructure regulation. This work establishes a theoretical foundation for designing next-generation alloys with targeted performance under extreme service environments. |
| format | Article |
| id | doaj-art-8bba9b47303d49b69a0120ff5fdac8fa |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-8bba9b47303d49b69a0120ff5fdac8fa2025-08-20T03:08:42ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01363298331810.1016/j.jmrt.2025.04.027High-temperature alloys: Recent advances from conventional alloys to complex concentrated systemsYanying Li0Hao Lv1Qian Yuan2Jun Tan3Zhongxue Feng4Zhaosong Chen5Jianwei Xu6School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author.Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Corresponding author.School of Physics and Electronic Science, Anshun University, Anshun, 561000, ChinaSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaThis study systematically reviews strengthening mechanisms and fabrication technologies of high-temperature alloys from conventional systems to complex concentrated alloys (CCAs). The dual-phase control in Ni/Co/Fe-based alloys and CCAs is shown to achieve performance enhancement through synergistic solid-solution strengthening and precipitation strengthening. Advanced processing routes (including vacuum induction melting-electroslag remelting-vacuum arc remelting triple smelting, powder metallurgy, and laser additive manufacturing) are demonstrated to refine alloy purity, eliminate macro-segregation, and enable near-net shaping of complex components. Comparative analysis reveals that Ni/Co/Fe-based alloys maintain a yielding strength >500 MPa below 1000 °C, Mo-based alloys stabilize at 1000–1600 °C, W/Ta-based alloys retain structural integrity >1600 °C, while CCAs exhibit unprecedented ultimate tensile strength >1800 MPa across 25–1700 °C via multi-principal element interactions. To address hypersonic and deep-space extreme conditions, critical challenges are identified: extending second phase stability beyond 1200 °C, developing thermomechanical-oxidation coupled damage models, and implementing multiscale microstructure regulation. This work establishes a theoretical foundation for designing next-generation alloys with targeted performance under extreme service environments.http://www.sciencedirect.com/science/article/pii/S2238785425008488High-temperature alloysSuperalloysStrengthening mechanismsPreparation techniquesAerospace applications |
| spellingShingle | Yanying Li Hao Lv Qian Yuan Jun Tan Zhongxue Feng Zhaosong Chen Jianwei Xu High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems Journal of Materials Research and Technology High-temperature alloys Superalloys Strengthening mechanisms Preparation techniques Aerospace applications |
| title | High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems |
| title_full | High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems |
| title_fullStr | High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems |
| title_full_unstemmed | High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems |
| title_short | High-temperature alloys: Recent advances from conventional alloys to complex concentrated systems |
| title_sort | high temperature alloys recent advances from conventional alloys to complex concentrated systems |
| topic | High-temperature alloys Superalloys Strengthening mechanisms Preparation techniques Aerospace applications |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425008488 |
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