When buying a car on the secondary market experienced car owner immediately pays attention to the body. If he “blossomed” – for long and trouble-free operation of the machine can be forgotten. With this in mind inquiring the motorist and start thinking about a worldwide conspiracy of automobile manufacturers, on purpose-specifically refusing production of bodies of stainless steel material, to once and forever solve the problem of rust and rot.
Moreover, the aluminum, plastic, carbon fiber and titanium used in the automotive industry for a long time and successfully. And so it is true, however the cost of these materials and technological features do not allow you to use them often.
Fragile stainless steel
First let’s deal with stainless steel. It would seem, fairly cheap alternative to conventional galvanized body, because it is plain steel with additives of chromium and Nickel, often having a mirror appearance. Stainless steel, as the name implies – will not rust. However, it is heavier than many types of steel and is softer. The car one it will be expensive to manufacture, heavy and deprived of the necessary strength. History knows the use of stainless steel on the legendary DeLorean DMC 12 (the same car from the cult film Back to the future), but from stainless steel there was only the outer pane – the frame is made of composite materials.
Cho same aluminum alloy? Yes, they are lighter than steel and more resistant to rust, however, much more difficult to cook. Moreover, aluminum has disadvantages – it can not provide the necessary strength.
For this reason, the latest Audi A8, the first generation of which was entirely of aluminum, using conventional steel alloys to improve the strength characteristics of the collision. Although aluminum alloy will not go away (58% of the body of “eight” made from this material). Besides, contrary to misconceptions, aluminum rusts (chocolate, and then crumble), though much slower than regular steel. The reason is, the oxide film, which occurs in the material when in contact with air.
Titanium alloys are stronger than aluminum and are devoid of its shortcomings, but they are 6 times more expensive – the price of cars with bodies made of titanium starts at several hundred thousand dollars. Bright representative of this clan – Icona Vulcano Titanium for $ 2.5 million.
The main competitor of titanium – carbon composite material of polymer and epoxy resin. It is comparable in strength to titanium alloy, but it is even easier. Rusting the same, for obvious reasons, the carbon nothing. Often manufacturers of luxury cars use a design of titanium and carbon fiber, combining their advantages. This synthesis is carried out in the Pagani Huayra (1.3 million dollars).
However, it is worth noting that carmakers are increasingly using aluminium, composite materials and titanium in massive machines. For example, the frame of the BMW i3 is made of aluminum and carbon fiber. On budget cars for several decades, the wings and many of the elements are made of plastic. Even if the car body is made of normal steel, the more often it undergoes bilateral galvanizing. Bare and unpainted body is no longer stored under the open sky, causing then paint directly on rust.
In the end the car 2010 release starts to decay much later than the car’s 1980-1990. And the news about a possible cheaper carbon also give considerable hope that in 10 years we’ll be driving cars that do not rust at all.