| METALS AND METAL MATRIX COMPOSITES |
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| Study on Very High Cycle Fatigue Behavior of Single/Dual-laser Selective Laser Melted AlSi10Mg |
| JING Yu1,2, LI Wenkai2,*, WU Aoqi1,2, SHI Yandong2, SHI Lei3, SU Xuming2
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1 College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
2 Zhejiang Provincial Engineering Center of Integrated Manufacturing Technology and Intelligent Equipment, College of Engineering, Hangzhou City University, Hangzhou 310015, China
3 Taihang Laboratory, Chengdu 610000, China |
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Abstract The application of SLM technology in mass production is constrained by its relatively slow printing speed. Current research efforts are primarily focused on enhancing the printing speed of SLM, with multi-laser printing technology emerging as a promising solution to significantly acce-lerate the process. This study examined the VHCF behavior of AlSi10Mg material produced using single-laser and dual-laser techniques. The findings indicated that the material produced by the single-laser method demonstrated a higher VHCF life, despite considerable scatter in fatigue life for both methods. Through the analysis of microstructure and fatigue fracture surfaces, it was found that the defects are randomly distributed, while the defects in the dual-laser prepared specimens are significantly concentrated in the laser overlap regions. Microstructure and fatigue fracture surface analyses revealed a substantial presence of pores in the overlapping regions of AlSi10Mg material produced by the dual-laser met-hod. Furthermore, the size of the critical defects and their initiation sites are the main factors influencing the difference in VHCF performance of the specimens. To further investigate the impact of defect size on the VHCF behavior of the material, this study conducted a detailed analysis of the data using the P-S-N model.
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Published: 25 November 2025
Online: 2025-11-14
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1 Samuel H, Liu P, Mokasdar A, et al. International Journal of Advanced Manufacturing Technology, 2013, 67(5-8), 1191.
2 Debroy T, Wei H L, Zuback J S, et al. Progress in Materials Science, 2018, 92, 112.
3 Frazier W E. Journal of Materials Engineering and Performance, 2014, 23, 1917.
4 Li Zhonghua, Kuai Zezhou, Liu Bin, et al. Journal of Ordnance Equipment Engineering, 2019, 40(9), 165 (in Chinese).
李忠华, 蒯泽宙, 刘斌, 等. 兵器装备工程学报, 2019, 40(9), 165.
5 Li Zhiyong, Zhang Luo, Chen Ruizhi, et al. Hot Working Technology, 2025(13), 31 (in Chinese).
李智勇, 张珞, 陈锐敏, 等. 热加工工艺, 2025(13), 31.
6 Wang Zemin, Huang Wenpu, Zeng Xiaoyan. Journal of Netshape Forming Engineering, 2019, 11(4), 21 (in Chinese).
王泽敏, 黄文普, 曾晓雁. 精密成形工程, 2019, 11(4), 21.
7 Ding Hongyu, Wu Shuting, Yuan Kang, et al. Hot Working Technology, 2020, 49(22), 12 (in Chinese).
丁红瑜, 武姝婷, 袁康, 等. 热加工工艺, 2020, 49(22), 12.
8 Liu Wenpeng, Liu Bin, Li Zhonghua, et al. Hot Working Technology, 2021, 50(18), 61(in Chinese).
刘文鹏, 刘斌, 李忠华, 等. 热加工工艺, 2021, 50(18), 61.
9 Tang Xun. Surface Engineering & Remanufacturing, 2019, 19(1), 60 (in Chinese).
唐讯. 表面工程与再制造, 2019, 19(1), 60.
10 Li F, Wang Z, Zeng X. Materials Letters, 2017, 199, 79.
11 Zhang C, Zhu H, Hu Z, et al. Materials Science and Engineering A, 2019, 746, 416.
12 Qian G, Jian Z, Qian Y, et al. International Journal of Fatigue, 2020, 138, 105696.
13 Tridello A, Fiocchi J, Biffi C A, et al. International Journal of Fatigue, 2022, 160, 106825.
14 Li J, Sun J, Qian G, et al. International Journal of Fatigue, 2022, 158, 106770.
15 Kempen K, Thijs L, van Humbeeck J, et al. Physics Procedia, 2012, 39, 439.
16 Murakami Y. Metal fatigue, Elsevier Science Ltd., UK, 2002, pp.11.
17 Romano S, Brückner-Foit A, Brandão A, et al. Engineer Fracture Mechanics, 2018, 187, 165.
18 Paolino D, Tridello A, Chiandussi G, et al. Fatigue & Fracture Engineering Material Structures, 2016, 39, 1319. |
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2025, Vol. 39 
