Study on the microstructures of SLM IN718 based on solidification model
During the selective laser melting(SLM) process of IN718, different process parameters have a significant impact on its microstructure. To analyze the interrelationship between process parameters and microstructure, in this study, the relationship between primary dendrite arm spacing(PDAS) and proce...
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EDP Sciences
2024-12-01
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| Series: | Xibei Gongye Daxue Xuebao |
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| _version_ | 1825206604877791232 |
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| author | XU Wei WAN Jie CHEN Yuzeng |
| author_facet | XU Wei WAN Jie CHEN Yuzeng |
| author_sort | XU Wei |
| collection | DOAJ |
| description | During the selective laser melting(SLM) process of IN718, different process parameters have a significant impact on its microstructure. To analyze the interrelationship between process parameters and microstructure, in this study, the relationship between primary dendrite arm spacing(PDAS) and process parameters was established through a solidification model, and the accuracy of the model was verified through experiments. Both the calculation results and the experimental results show that when the laser power increases, PDAS increases accordingly; while as the scanning speed and hatch distance increase, PDAS decreases accordingly; and from the bottom to the top of the molten pool, PDAS gradually increases. At the same time, the top of the molten pool is more sensitive to the change of process parameters, while the middle and bottom are relatively insensitive. These research results are of certain guiding significance for the microstructure regulation of IN718. |
| format | Article |
| id | doaj-art-f688f008738c45fca4403a707d33af78 |
| institution | Kabale University |
| issn | 1000-2758 2609-7125 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj-art-f688f008738c45fca4403a707d33af782025-02-07T08:23:13ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252024-12-014261063107010.1051/jnwpu/20244261063jnwpu2024426p1063Study on the microstructures of SLM IN718 based on solidification modelXU Wei0WAN Jie1CHEN Yuzeng2State Key Laboratory of Solidification Processing, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Northwestern Polytechnical UniversityState Key Laboratory of Solidification Processing, Northwestern Polytechnical UniversityDuring the selective laser melting(SLM) process of IN718, different process parameters have a significant impact on its microstructure. To analyze the interrelationship between process parameters and microstructure, in this study, the relationship between primary dendrite arm spacing(PDAS) and process parameters was established through a solidification model, and the accuracy of the model was verified through experiments. Both the calculation results and the experimental results show that when the laser power increases, PDAS increases accordingly; while as the scanning speed and hatch distance increase, PDAS decreases accordingly; and from the bottom to the top of the molten pool, PDAS gradually increases. At the same time, the top of the molten pool is more sensitive to the change of process parameters, while the middle and bottom are relatively insensitive. These research results are of certain guiding significance for the microstructure regulation of IN718.https://www.jnwpu.org/articles/jnwpu/full_html/2024/06/jnwpu2024426p1063/jnwpu2024426p1063.htmlin718process parameterpdassolidification model |
| spellingShingle | XU Wei WAN Jie CHEN Yuzeng Study on the microstructures of SLM IN718 based on solidification model Xibei Gongye Daxue Xuebao in718 process parameter pdas solidification model |
| title | Study on the microstructures of SLM IN718 based on solidification model |
| title_full | Study on the microstructures of SLM IN718 based on solidification model |
| title_fullStr | Study on the microstructures of SLM IN718 based on solidification model |
| title_full_unstemmed | Study on the microstructures of SLM IN718 based on solidification model |
| title_short | Study on the microstructures of SLM IN718 based on solidification model |
| title_sort | study on the microstructures of slm in718 based on solidification model |
| topic | in718 process parameter pdas solidification model |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2024/06/jnwpu2024426p1063/jnwpu2024426p1063.html |
| work_keys_str_mv | AT xuwei studyonthemicrostructuresofslmin718basedonsolidificationmodel AT wanjie studyonthemicrostructuresofslmin718basedonsolidificationmodel AT chenyuzeng studyonthemicrostructuresofslmin718basedonsolidificationmodel |