激光扫描速度对3D打印青铜合金熔覆层组织及耐磨性能的影响

doi:10.19976/j.cnki.43-1448/TF.2025022

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Abstract Copper and copper alloy have excellent electrical conduction, heat conduction and other characteristics, the development of 3D printing makes the importance of bronze alloy precision components increasingly prominent in the high-end manufacturing. Bronze alloys were prepared by laser powder bed fusion technique with different scanning speed (200, 400, 600 mm/s) in this paper, the microstructures, mechanical properties, and tribological properties were studied by optical microscopic observation, hardness test, friction experiment, three-dimensional morphology analysis, SEM and EDS characterization analysis. The results indicate that with the increase of scanning speed, the porosity of 3D printed bronze alloy cladding layer increases, the grain size of molten pool decreases, the grain structure becomes more dense, the hardness increases; tribological property of 3D printed bronze alloy increases and the friction loss decreases. Moreover, the wear mechanism of 3D printed bronze alloy is mainly adhesion wear and abrasive wear, and oxidation wear is more serious under the condition of low scanning speed.

Key words： scanning speed 3D printing bronze alloy mechanical property friction wear

Received: 12 March 2025 Published: 28 July 2025

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TG146.2

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	Articles by authors
	WU Qiang
	XIAO Yelong
	SHEN Mingxue
	XIONG Guangyao
	JI Dehui
	ZHAO Huoping

Cite this article:

WU Qiang,XIAO Yelong,SHEN Mingxue, et al. Effects of laser scanning speed on microstructure and wear resistance property of 3D printed bronze alloy cladding layers[J]. Materials Science and Engineering of Powder Metallurgy, 2025, 30(3): 224-232.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2025022 OR http://pmbjb.csu.edu.cn/EN/Y2025/V30/I3/224

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