Open AccessA NEW GENERATION OF ARMORED STEEL PLATES
Author(s) -
Jure Bernetič,
Borut Kosec,
Gorazd Kosec,
Mirko Gojić,
Burzić Zijah,
Aleš Nagode,
Mirko Soković,
M. Bizjak
Publication year - 2016
Publication title -
contemporary materials
Language(s) - English
Resource type - Journals
eISSN - 1986-8677
pISSN - 1986-8669
DOI - 10.7251/comen1602137b
Subject(s) - adiabatic shear band , materials science , tempering , metallurgy , alloy , hardened steel , armour , explosion welding , carbide , quenching (fluorescence) , composite material , welding , filler metal , physics , arc welding , layer (electronics) , quantum mechanics , fluorescence
The engineers of PROTAC d.o.o. and the biggest Slovenian steelwork ACRONI d.o.o., in cooperation with domestic and foreign institutions of science, have been designed and developed a new generation of armored steel PROTAC 500. Steel PROTAC 500 belongs to the group of high strength low alloy (HSLA) steels. It is made in steelwork ACRONI d.o.o. by the standard industrial procedures. The relevant mechanical properties of that steel are achieved by corresponding heat treatment procedure: quenching and tempering. Preliminary tests of the mechanical properties of the steel have indicated the possibility of using steel PROTAC 500 for light armored vehicles. The presented work studied the response of new generation armored steel plates PROTAC 500 to the ballistic testing with armored piercing bullets with a core of tungsten carbide, charge 7.62 mm. However, the interactions between the piercing bullets and the armored steel plate were also investigated. The most obvious and significant phenomena in penetrating of the piercing bullets Nammo AP8 in steel target PROTAC 500 are strain hardening of steels, the appearance of cracks and local failure, adiabatic shear bands (ASB) with related phase transformations, and melting as well as alloying at the interface between bullet and steel plate.