Preliminary Study On The Application Of Titanium And Titanium Alloys in Amphibious Special Vehicle Chassis
With the continuous improvement of our country's requirements for coastal defense, improving the environmental adaptability of military equipment has become an important aspect of our military equipment research. A special vehicle chassis for a new type of amphibious vehicle. As one of the advanced weapons and equipment, it can meet the needs of diversified amphibious missions. It can improve the vehicle's ability to adapt to special environments such as ocean, land, and tidal flats. It will play an important role in safeguarding national maritime rights and interests. Huge effect.
The birth of every advanced equipment is inseparable from the application of new materials. However, the commonly used material for the chassis of existing amphibious vehicles is high-strength steel, which needs to be improved in corrosion resistance, and cannot achieve lightweight, which reduces the vehicle's carrying capacity and shortens its service life. , restricting the development of amphibious vehicles. Titanium and titanium alloys have entered people's field of vision with their excellent comprehensive properties, and are materials with excellent properties such as light weight, high strength, good corrosion resistance, high and low temperature adaptability, and high elasticity. It has the functions of weight, energy saving, shock absorption, corrosion resistance, pollution reduction, and life extension, and improves the safety and comfort of automobiles. It is an ideal material for realizing the lightweight of automobiles.
In order to improve the overall performance of special vehicles, titanium and titanium alloys are used to replace high-strength steel and protective armor steel in vehicles, which can achieve the goal of lightweight vehicles. The mass has been reduced by about 40%, and good results have been achieved; the US Army M2A2 Bradley infantry fighting vehicle hatch adopts titanium alloy material instead of forged aluminum alloy, and its mass is reduced by 35%, which greatly improves the bulletproof capability; Russian T95 tank The front of the gun adopts all-titanium alloy modular armor with high strength and good toughness, so that its anti-strike ability has reached the anti-strike ability of 1500 mm thick armor plate.
As the base of the amphibious vehicle, the frame is the core of the safety of the entire special vehicle, and most of the components and assemblies are fixed through the frame. As the skeleton of the whole vehicle, the frame plays an important role in supporting and connecting various parts of the car and bearing various loads from inside and outside the car. The chassis frame of special cars mainly uses high-strength steel plates as the base material. In order to further improve the maneuverability, transportation and carrying capacity of the amphibious vehicle, without reducing the comprehensive mechanical properties, the chassis frame of this vehicle is made of titanium alloy material, which can reduce the weight by more than 30% compared with the use of high-strength steel plates.
