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Journal of New Technology and Materials (JNTM), Vol. 01, N°00 (2011)

Special issue of NMCA’2011

Treatment of commercial aluminum by Nd:YAG laser

L. Baziz^a and A. Nouiri^b

^aDepartment of physics, Univ. of Khenchela (Algeria)

^bDepartment of material sciences, Univ. of Oum El-Bouaghi (Algeria)

Emails: leila1_b@yahoo.fr & nouiri.kader@gmail.com

Received: 23 May 2011, accepted: 30 September 2011

Abstract

In this work, two types of commercial aluminum alloys (industrial and recovered aluminum) are studied. The surface is irradiated by Nd: Yag laser (l = 532 nm, with a pulse duration of 15 ns and an energy of 50 mJ). The experimental results show that the hardness profile can be divided into three regions. The melted area is the hardest region, Then, the hardness decreases sharply in the interface region between the melted area and the heat-affected zone.

Keywords: Laser treatment, aluminum alloys, Hardness,