Effect of Hardness on the Ballistic Impact Behavior of High-Strength Steels Against 7.62-mm Armor Piercing Projectiles

DEMİR T., Ubeyli M., YILDIRIM R. O.

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, cilt.18, sa.2, ss.145-153, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s11665-008-9288-3
  • Dergi Adı: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.145-153
  • Anahtar Kelimeler: ballistic testing, heat treatment, high-strength steel, OBLIQUE IMPACT, HIGH-VELOCITY, PLATES, PERFORMANCE, PENETRATION
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Ballistic performance of engineering materials should be known in selection of the most suitable armor material to protect civilian or military system with the lowest possible weight against various threats. In this study, the ballistic impact characterization of high-strength steels, namely AISI 4340 and DIN 100Cr6, was investigated using 7.62-mm armor piercing (AP) projectiles by considering four hardness levels and five areal densities. The main aim was to examine the effect of hardness and areal density on the ballistic behavior of these steels. Hence, four different heat-treatment schedules were applied to these steels to get different mechanical properties. After ballistic testing, macro and micro examinations of the specimens were carried out to clarify their failure mechanisms. According to the results, the AISI 4340 steel having a hardness of 50 HRC showed the best ballistic performance among the investigated materials.