Effects of B4C Addition on the Laser Beam Welding Characteristics of Al/SiC MMCs Produced By P/M

• Main Author: Serdar KARAOĞLU
• Format: Article
• Language: English
• Published: Pamukkale University 2011-01-01
• Series: Pamukkale University Journal of Engineering Sciences
• Subjects: MMK, T/M, Alüminyum, SiC, B4C, Lazer ışın kaynağı.
• Online Access: http://dergipark.ulakbim.gov.tr/pajes/article/view/5000088669

Fusion weldability characteristics of metal matrix composites (MMC) produced by powder metallurgy (P/M) are usually insufficient due to unwanted micro-structural changes that occur during welding. This study aims to investigate the effects of B4C addition as reinforcement on the weld quality of Al/SiC MMCs. After the production of Al/SiC MMCs by P/M with or without the addition of B4C, laser beam welding (LBW) characteristics of the materials were investigated by focusing on the integrity of the welds. Optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive X-ray analysis (EDX) were utilized for the characterization of the welds. Results show that Al/SiC MMCs produced by P/M can not be easily welded by LBW, but weldability characteristics of the material can be improved by the addition of B4C.