Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism
In this work, the effect of heat treatment on the microstructure and mechanical properties of CuCrZr alloy fabricated by selective laser melting (SLM) was investigated. The results demonstrated that the optimal comprehensive performance of the tensile strength (569.7 MPa) and the hardness (160 HV) w...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423001254 |
| _version_ | 1827978354480906240 |
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| author | Zezhou Kuai Zhonghua Li Bin Liu Yanlei Chen Shengyu Lu Peikang Bai |
| author_facet | Zezhou Kuai Zhonghua Li Bin Liu Yanlei Chen Shengyu Lu Peikang Bai |
| author_sort | Zezhou Kuai |
| collection | DOAJ |
| description | In this work, the effect of heat treatment on the microstructure and mechanical properties of CuCrZr alloy fabricated by selective laser melting (SLM) was investigated. The results demonstrated that the optimal comprehensive performance of the tensile strength (569.7 MPa) and the hardness (160 HV) was obtained by direct ageing (DA) at 470 °C for 60 min. The tensile strength of the CuCrZr alloy in the case of the solution treatment (ST) was 281.0 MPa, and the tensile strength of the CuCrZr alloy in the case of the solution + ageing treatment (SAT) reached 356.5 MPa. As the ST temperature increases, the amount of particles inside the grains dissolving into the matrix increases, the precipitation phase decreases significantly. and the precipitated phase increases slightly at the grain boundary. Zr-rich phase precipitation was observed at the grain boundaries of SA and SAT samples. The SAT and DA samples underwent recrystallisation and an increase in grain size. The grain orientation in the XZ direction of the ST samples was mainly in the <110> direction; in the case of the SAT and the DA samples grains, the <100> orientation became stronger. |
| first_indexed | 2024-04-09T21:19:31Z |
| format | Article |
| id | doaj.art-775470a1f9f34db29afbbf13c4498ce4 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:31Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-775470a1f9f34db29afbbf13c4498ce42023-03-28T06:46:16ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012326582671Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanismZezhou Kuai0Zhonghua Li1Bin Liu2Yanlei Chen3Shengyu Lu4Peikang Bai5School of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Mechanical Engineering, North University of China, Taiyuan 030051, China; Corresponding author.School of Materials Science and Engineering, North University of China, Taiyuan 030051, China; Corresponding author.School of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaIn this work, the effect of heat treatment on the microstructure and mechanical properties of CuCrZr alloy fabricated by selective laser melting (SLM) was investigated. The results demonstrated that the optimal comprehensive performance of the tensile strength (569.7 MPa) and the hardness (160 HV) was obtained by direct ageing (DA) at 470 °C for 60 min. The tensile strength of the CuCrZr alloy in the case of the solution treatment (ST) was 281.0 MPa, and the tensile strength of the CuCrZr alloy in the case of the solution + ageing treatment (SAT) reached 356.5 MPa. As the ST temperature increases, the amount of particles inside the grains dissolving into the matrix increases, the precipitation phase decreases significantly. and the precipitated phase increases slightly at the grain boundary. Zr-rich phase precipitation was observed at the grain boundaries of SA and SAT samples. The SAT and DA samples underwent recrystallisation and an increase in grain size. The grain orientation in the XZ direction of the ST samples was mainly in the <110> direction; in the case of the SAT and the DA samples grains, the <100> orientation became stronger.http://www.sciencedirect.com/science/article/pii/S2238785423001254CuCrZrSelective laser meltingHeat treatmentMicrostructureMechanical properties |
| spellingShingle | Zezhou Kuai Zhonghua Li Bin Liu Yanlei Chen Shengyu Lu Peikang Bai Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism Journal of Materials Research and Technology CuCrZr Selective laser melting Heat treatment Microstructure Mechanical properties |
| title | Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism |
| title_full | Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism |
| title_fullStr | Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism |
| title_full_unstemmed | Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism |
| title_short | Effect of heat treatment on CuCrZr alloy fabricated by selective laser melting: microstructure evolution, mechanical properties and fracture mechanism |
| title_sort | effect of heat treatment on cucrzr alloy fabricated by selective laser melting microstructure evolution mechanical properties and fracture mechanism |
| topic | CuCrZr Selective laser melting Heat treatment Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423001254 |
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