Modification of Prepared (Al 2024/Alumina/Mn) Composite by Laser Surface SiC Clad Layer

Juber, Marwa H.; Majeed, Amer H.; Hamza, Mohammed S.; Tawfiq, Thair A.

doi:10.30684/etj.37.6A.3

	Modification of Prepared (Al 2024/Alumina/Mn) Composite by Laser Surface SiC Clad Layer
Engineering and Technology Journal
Article 3, Volume 37, 6A, 2019, Pages 201-206 PDF (553.59 K)
Document Type: Research Paper
DOI: 10.30684/etj.37.6A.3
Authors
Marwa H. Juber¹; Amer H. Majeed¹; Mohammed S. Hamza²; Thair A. Tawfiq³
¹Materials Engineering Department, Mustansiriyah University - Iraq
²Materials Engineering Department, Mustansiriyah University - Iraq
³Institute of Laser for Postgraduate Studies, University of Baghdad - Iraq
Abstract
The present work shows the cladding process of silicon carbide on the substrate of prepared composite (Al 2024/Alumina/Mn) by using a laser beam (pulsed Nd-YAG). To obtain the desired results, the best laser parameters were chosen. The parameters of the laser beam that have chief affected during the experiments in this work are peak power (1.9)kW, work frequency (8)Hz and pulse duration (5.3)ms, the preplaced powder technique favorite during a cladding process and the results in this work were proved by SEM, micro-hardness, EDS, and chemical corrosion tests. The results of the experimental work have shown that a micro-hardness increased about (28%) times for Aluminum/Alumina composite by silicon carbide cladding compared with the original value of micro-hardness, and thickness of the cladding layer was about (34μm). The resistance of corrosion was enhanced with about (35%) for the Aluminum/Alumina composite with SiC cladding.
Keywords
aluminum; Laser cladding; Silicon Carbide

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