The 2016 Prius Eco is rated at 56 mpg combined (58 mpg city, 53 mpg highway)--making it the new all-time fuel efficiency leader among vehicles that don't plug in to recharge their battery packs. ALSO SEE: Next Toyota Prius Plug-In Hybrid To Have 30 To 35 Miles Of Range: Source. You can see all three ratings here.
Corrosion is a natural process, which converts refined metal to their more stable oxide. It is the gradual destruction of materials (usually metals) by chemical reaction with their environment.In the most common use of the word, this means electrochemical oxidation of metal in reaction with an oxidant such as oxygen.orrosion can also occur in materials other than metals, such as ceramics or polymers, although in this context, the term degradation is more common.
Corrosion theory for metals. Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical reaction, with the surrounding medium. According to this definition, the term corrosion can be applied to all materials, including non-metals.he corroding metal surface is called the anode. Oxygen and water are consumed at the surface of the copper plate and hydroxyl ions (OH-), which are negatively charged, are formed. The negative hydroxyl ions neutralize the positively charged iron atoms.