Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition
Laser directed energy deposition (LDED) is widely utilized due to its high precision, fast processing speed, small heat affected zone, strong machinability, environmental protection, energy saving, and high reliability. 316L stainless steel is one of the most extensively studied materials employed i...
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/S2238785424029235 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832595366209388544 |
|---|---|
| author | Zhaoqiang Chen Ziyu Zhang Yuying Yang Guangchun Xiao Mingdong Yi Tingting Zhou Chonghai Xu |
| author_facet | Zhaoqiang Chen Ziyu Zhang Yuying Yang Guangchun Xiao Mingdong Yi Tingting Zhou Chonghai Xu |
| author_sort | Zhaoqiang Chen |
| collection | DOAJ |
| description | Laser directed energy deposition (LDED) is widely utilized due to its high precision, fast processing speed, small heat affected zone, strong machinability, environmental protection, energy saving, and high reliability. 316L stainless steel is one of the most extensively studied materials employed in the LDED process. The process parameters of LDED are known to affect the thermal history process, which subsequently influences the microstructure and mechanical properties of the final product. Therefore, the effects of different interlayer residence times (interlayer cooling after each deposition of four layers to enhance production efficiency) on the microstructure and mechanical properties of LDED 316L stainless steel are discussed in this paper. The experimental results indicate that with the extension of the interlayer residence time (IDT), the morphology of the molten pool becomes increasingly stable, the surface quality of the component improves, and the grains are refined. When the IDT is set to 360 s, it is observed that the ultimate tensile strength of the sample is 34% higher compared to when the IDT is 0 s, the elongation is increased by 47%, and the hardness is enhanced by 13%. These findings underscore the importance of optimizing the laser interlayer residence time to improve the overall performance of 316L stainless steel parts. |
| format | Article |
| id | doaj-art-f08348615306458fa4dea306928a6724 |
| 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-f08348615306458fa4dea306928a67242025-01-19T06:25:32ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013413041312Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy depositionZhaoqiang Chen0Ziyu Zhang1Yuying Yang2Guangchun Xiao3Mingdong Yi4Tingting Zhou5Chonghai Xu6School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaSchool of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaSchool of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Corresponding author. School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaSchool of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaSchool of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaSchool of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, ChinaLaser directed energy deposition (LDED) is widely utilized due to its high precision, fast processing speed, small heat affected zone, strong machinability, environmental protection, energy saving, and high reliability. 316L stainless steel is one of the most extensively studied materials employed in the LDED process. The process parameters of LDED are known to affect the thermal history process, which subsequently influences the microstructure and mechanical properties of the final product. Therefore, the effects of different interlayer residence times (interlayer cooling after each deposition of four layers to enhance production efficiency) on the microstructure and mechanical properties of LDED 316L stainless steel are discussed in this paper. The experimental results indicate that with the extension of the interlayer residence time (IDT), the morphology of the molten pool becomes increasingly stable, the surface quality of the component improves, and the grains are refined. When the IDT is set to 360 s, it is observed that the ultimate tensile strength of the sample is 34% higher compared to when the IDT is 0 s, the elongation is increased by 47%, and the hardness is enhanced by 13%. These findings underscore the importance of optimizing the laser interlayer residence time to improve the overall performance of 316L stainless steel parts.http://www.sciencedirect.com/science/article/pii/S2238785424029235Laser directed energy depositionInterlayer dwell timeMechanical properties316L stainless steel |
| spellingShingle | Zhaoqiang Chen Ziyu Zhang Yuying Yang Guangchun Xiao Mingdong Yi Tingting Zhou Chonghai Xu Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition Journal of Materials Research and Technology Laser directed energy deposition Interlayer dwell time Mechanical properties 316L stainless steel |
| title | Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition |
| title_full | Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition |
| title_fullStr | Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition |
| title_full_unstemmed | Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition |
| title_short | Influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316L stainless steel by laser directed energy deposition |
| title_sort | influence of interlayer dwell time on microstructure and mechanical properties additively manufactured 316l stainless steel by laser directed energy deposition |
| topic | Laser directed energy deposition Interlayer dwell time Mechanical properties 316L stainless steel |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029235 |
| work_keys_str_mv | AT zhaoqiangchen influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT ziyuzhang influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT yuyingyang influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT guangchunxiao influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT mingdongyi influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT tingtingzhou influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition AT chonghaixu influenceofinterlayerdwelltimeonmicrostructureandmechanicalpropertiesadditivelymanufactured316lstainlesssteelbylaserdirectedenergydeposition |