Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming
CuSn20P1 alloy has a wide range of applications in aerospace, automobile and other fields, but the mismatch between strength and plasticity in conventional casting has greatly limited its application field. In the paper, a melt enclosed cooling slope channel (ECSC) was used to prepare CuSn20P1 alloy...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028801 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832595319382081536 |
|---|---|
| author | Hao Zhang Yongkun Li Rongfeng Zhou Dingdong Huo Yao Li Lei Wang |
| author_facet | Hao Zhang Yongkun Li Rongfeng Zhou Dingdong Huo Yao Li Lei Wang |
| author_sort | Hao Zhang |
| collection | DOAJ |
| description | CuSn20P1 alloy has a wide range of applications in aerospace, automobile and other fields, but the mismatch between strength and plasticity in conventional casting has greatly limited its application field. In the paper, a melt enclosed cooling slope channel (ECSC) was used to prepare CuSn20P1 alloy semi-solid slurry, and then the casting was prepared by rheo-squeeze casting (RSC) and liquid squeeze casting (LSC). The effect of high mold temperature (500 °C, 525 °C, 550 °C, 575 °C) on peritectic phase content and properties of CuSn20P1 alloy was studied. The results show that the higher mold temperature is conducive to the formation of peritectic β phase, and the content of peritectic β phase increases from 36.18% to 57.88% with the mold temperature increasing from 500 °C to 575 °C. Interestingly, the δ-phase content decreased significantly with the increase in mold temperature. In addition, the β are tightly bound to the α-Cu and exist semi-coherent interface matching in (101) β//(-1-10) α-Cu. On the contrary, the β/δ interface is clear and well-bonded but no orientation relationship exists. The tensile strength and elongation increase from 282.9 MPa to 0.16% to 346.9 MPa and 0.26% with the mold temperature from 500 °C to 575 °C, respectively. The tensile strength and elongation of RSC at 575 °C are 29.3% and 116.7% higher than those of LSC-550, respectively. It is likely attributed to increased peritectic phase content with the semi-coherent interface, fine grain strengthening, and solid solution strengthening. Moreover, the fracture mechanism indicates that the peritectic phase can effectively prevent crack propagation. This work can make a significant contribution to the preparation of Cu alloy casting with high performance and high Sn content. |
| format | Article |
| id | doaj-art-3fde344d68224b27820e270780648d2d |
| 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-3fde344d68224b27820e270780648d2d2025-01-19T06:25:19ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134408419Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological formingHao Zhang0Yongkun Li1Rongfeng Zhou2Dingdong Huo3Yao Li4Lei Wang5Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China; City College, Kunming University of Science and Technology, Kunming, 650093, PR China; Corresponding author. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China.Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China; City College, Kunming University of Science and Technology, Kunming, 650093, PR China; Corresponding author. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR China.Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, PR ChinaCuSn20P1 alloy has a wide range of applications in aerospace, automobile and other fields, but the mismatch between strength and plasticity in conventional casting has greatly limited its application field. In the paper, a melt enclosed cooling slope channel (ECSC) was used to prepare CuSn20P1 alloy semi-solid slurry, and then the casting was prepared by rheo-squeeze casting (RSC) and liquid squeeze casting (LSC). The effect of high mold temperature (500 °C, 525 °C, 550 °C, 575 °C) on peritectic phase content and properties of CuSn20P1 alloy was studied. The results show that the higher mold temperature is conducive to the formation of peritectic β phase, and the content of peritectic β phase increases from 36.18% to 57.88% with the mold temperature increasing from 500 °C to 575 °C. Interestingly, the δ-phase content decreased significantly with the increase in mold temperature. In addition, the β are tightly bound to the α-Cu and exist semi-coherent interface matching in (101) β//(-1-10) α-Cu. On the contrary, the β/δ interface is clear and well-bonded but no orientation relationship exists. The tensile strength and elongation increase from 282.9 MPa to 0.16% to 346.9 MPa and 0.26% with the mold temperature from 500 °C to 575 °C, respectively. The tensile strength and elongation of RSC at 575 °C are 29.3% and 116.7% higher than those of LSC-550, respectively. It is likely attributed to increased peritectic phase content with the semi-coherent interface, fine grain strengthening, and solid solution strengthening. Moreover, the fracture mechanism indicates that the peritectic phase can effectively prevent crack propagation. This work can make a significant contribution to the preparation of Cu alloy casting with high performance and high Sn content.http://www.sciencedirect.com/science/article/pii/S2238785424028801CuSn20P1 alloySemi-solidPeritectic phaseMicrostructureProperties |
| spellingShingle | Hao Zhang Yongkun Li Rongfeng Zhou Dingdong Huo Yao Li Lei Wang Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming Journal of Materials Research and Technology CuSn20P1 alloy Semi-solid Peritectic phase Microstructure Properties |
| title | Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming |
| title_full | Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming |
| title_fullStr | Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming |
| title_full_unstemmed | Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming |
| title_short | Control of peritectic phase content and its effect on properties of CuSn20P1 alloy by semi-solid rheological forming |
| title_sort | control of peritectic phase content and its effect on properties of cusn20p1 alloy by semi solid rheological forming |
| topic | CuSn20P1 alloy Semi-solid Peritectic phase Microstructure Properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028801 |
| work_keys_str_mv | AT haozhang controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming AT yongkunli controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming AT rongfengzhou controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming AT dingdonghuo controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming AT yaoli controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming AT leiwang controlofperitecticphasecontentanditseffectonpropertiesofcusn20p1alloybysemisolidrheologicalforming |