Properties of the Aluminium Alloy EN AC-51100 after Laser Surface Treatment

Archives of Metallurgy and Materials

D. Janicki¹  T. Tański²  W. Pakieła²  M. Król²  B. Tomiczek² 

[1] Silesian University of Technology Welding Department, Faculty of Mechanical Engineering, 18a Konarskiego Str., 44-100 Gliwice, Poland;Silesian University of Technology, Institute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, 18a Konarskiego Str., 44-100 Gliwice, Poland

关键词: Keywords: Laser treatment;    Aluminium alloy;    Silicon carbide;    Wear resistance;   

DOI  :  10.1515/amm-2016-0035

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In this paper, the influence of a laser surface treatment on the structure and properties of aluminium alloy has been determined. The aim of this work was to improve the tribological properties of the surface layer of the EN AC-51100 aluminium alloy by simultaneously melting and feeding silicon carbide particles into the molten pool. The silicon carbide powder was introduced into the liquid metal using a gravity feeder within a constant feed rate of 1 g/min. A high power diode laser (HPDL) was used for remelting. Laser beam energies used in experiments were 1.8 kW, 2.0 kW and 2.2 kW, combined with the constant velocity of 50 mm/min. As a result of the laser treatment on the aluminium alloy, a composite layer with greater hardness and wear resistance compared to the based material was obtained.

【 授权许可】

Unknown