Creation of the Structure and Mechanical Properties of Tungsten Heavy Alloys for Special Application
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2015, Vol 6, Issue 1
Abstract
The paper presents the results of experimental studies aimed at elaboration of the manufacturing technology of tungsten heavy alloys (WSC) with high mechanical properties, dedicated for kinetic energy penetrators of armour piercing fin stabilized discarding sabot (APFSDS) ammunition. Especially, the results of mechanical properties’ investigations and structure observations of the materials strengthened by cold work and heat treatment involving supersaturation and aging are described. It was concluded that the best method of WSC strengthening is cold working, involving strain hardening both tungsten grain and Ni-based matrix. The cold working should be carried out under control because it excesses deformation causing very high strength and hardness increase is accomplished by the cost of substantial ductility, especially impact strength decrease. The solution heat treatment in vacuum furnace followed by water quenching and then isothermal aging at temperature range of 500-800°C enable further strength and hardness increase of WSC but its effectiveness is substantially less than cold work strengthening.
Authors and Affiliations
Mieczysław KACZOROWSKI, Paweł SKOCZYLAS
Keywords
Related Articles
- EP ID EP63040
- DOI -
- Views 109
- Downloads 0
Design Performances of Linked Wire Rope Absorbers in the Chain of Simple Gun Recoil Device
One of the basic requirements for the artillery weapons is the dumping of dynamical impulse loadings by the recoil system. Recoil subsystems, which are displaced during the recoiling process, have to be stopped and retur...
Analiza funkcjonalno-wytrzymałościowa tłumika z cieczą magnetoreologiczną przeznaczonego do dyssypacji energii odrzutu w broni kalibru 12,7 mm
W pracy zaprezentowano sprawdzenie poprawności doboru parametrów charakteryzujących tłumik z cieczą magnetoreologiczną (MR), które zapewniają wymagany poziom dyssypacji energii odrzutu podczas strzelania ogniem seryjnym...
Numerical Simulations of Penetration of 9 mm Parabellum Bullet into Kevlar Layers – Erosion Selection in Autodyn Program
A numerical model was performed of penetration of 9 mm Parabellum bullet into Kevlar layers, with the use of the AUTODYN software program. Simulations were conducted with a bullet modelled by means of the Smooth Particle...
The Algorithm of Optimal Control of the Anti-Aircraft Launcher on Board a Ship
The paper presents the algorithm of optimal control of the anti-aircraft launcher mounted on board a moving ship. The mathematical model of the launcher motion is linearised, and then, using the matrix of state and contr...
Some Relationships Among Thermal Properties, Detonation Parameters and Sensitivity of Nitramine Fillers in Formex Based PBXs
Thermal behavior and decomposition kinetics of formex-bonded PBXs based on some attractive cyclic nitramines (BCHMX, HMX, RDX and CL-20) were investigated by means of nonisothermal Thermogravimetry (TG) and Differential...