CHARACTERIZATION OF 6061 T651 ALUMINUM PLATES SUBJECTED TO HIGH-VELOCITY IMPACT LOADS

• Main Authors: Evren ÖZŞAHİN, Fehmi DİLTEMİZ, Süleyman TOLUN
• Format: Article
• Language: English
• Published: Anadolu University 2011-06-01
• Series: Anadolu University Journal of Science and Technology. A : Applied Sciences and Engineering
• Subjects: AA 6061 T651; Aluminum plates; High velocity impact; Microstructure
• Online Access: http://btd.anadolu.edu.tr/index.php/BTDA/article/viewFile/68/45

Ballistic response of single or multi-layered metal armor systems subjected to kinetic energy pro-jectiles was investigated in many experimental, theoretical and numerical studies.In this study, 6061 T651 aluminum plates impacted by 9 mm bullets were investigated. Microstructural investigations have been carried out using optical microscopy. Microhardness values were used to determine the strength behavior of the plates. Influence of the plate thickness and impact velocity on the microstructure has been evaluated. It was concluded from the study that thinner plates are more prone to deformation hardening with high penetration depth values even at low impact velocities while thick plates are more susceptible to thermal softening with less penetration depths. Maximum hardness values were obtained just below the impact zone in both plate thicknesses.