Ultrahigh-Strength Nanostructured Steels for Armours
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2011, Vol 2, Issue 1
Abstract
The paper presents principles of designing and examination results of super-clean high-strength new generation maraging steel for composite armours protecting against piercing with small-calibre armour-piercing (AP) projectiles. The research concerns maraging steel of yield strength ≥ 2,5 GPa and suitable toughness required to achieve high resistance of armour to piercing with AP projectiles. Three base compositions of maraging steel (MS) of yield strength 400 ksi, 500 ksi and 550 ksi with different content of alloying elements Fe, Ni, Co, Mo, W, V are described. The process of vacuum melting of the concerned steels was presented as well as further processing, i.e. homogenizing treatment, hot working, machining, solution treatment, ageing and grinding in order to prepare plates with dimensions of 50 × 50 × 10 mm. The manner of perpendicular firing at the aforementioned plates placed on a stand with RHA armour “witness” plate is presented. Moreover, demonstrated are also the visible results of maraging plates firing with 12,7 mm B-32 type armour-piercing incendiary projectiles on RHA plates. Also shown are the images of scans performed using an electron microscope of maraging plates’ fracture surface generated by firing.
Authors and Affiliations
Bogdan GARBARZ, Jarosław MARCISZ, Mariusz ADAMCZYK, Adam WIŚNIEWSKI
Keywords
Related Articles
- EP ID EP62815
- DOI -
- Views 70
- Downloads 0
The Concept of a Two-Stage Supersonic Missile Design
The concept of development of two-stage supersonic missiles with the PRODAS software is presented. The paper shows the results of basic dynamic characteristics, in the form of graphs, of a designed supersonic missile, ob...
A Numerical Investigation into the Effect of Blade Trailing-Edge Thickness on the Performance of Axial Fans
This paper presents the results of a numerical investigation into the effect of blade trailing-edge thickness and shape on the performance of a rotor ring model of axial fan. The numerical simulations carried out under t...
Renewable Energy Sources – Selected Problems
The paper presents selected issues on several renewable energy sources (RES) such as: wind, solar, and geothermal energy from the Earth's interior. Based on the available literature an assessment of the energy sources av...
Experimental and Finite Element Studies on Man-Rifle Reaction Force
The study concerns a man-weapon interaction during a gunshot. The recoil force measurements obtained for the Kalashnikov automatic rifle are presented and analyzed. The influence of shooter’s mass, height and position is...
Moduły czasowe o podwyższonej wytrzymałości mechanicznej i precyzji działania
W artykule przedstawiono informacje dotyczące wyników prac podjętych w Wojskowym Instytucie Technicznym Uzbrojenia (WITU) w celu podniesienia wytrzymałości mechanicznej i precyzji działania zapalników artyleryjskich z el...