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Wind has been used as an energy source for centuries. Even though the first wind turbines were built at the end of the 19th century the modern wind industry, as we know it today, did not start until 100 years later. Today these wind turbines have an expected lifetime of 25 years. In addition they are often placed offshore or in rugged terrain, making repairs extremely difficult and costly. There is a need for tremendous corrosion and erosion protection to achieve the required life expectancy. Coatings for corrosion protection have a long track record, and we also have many accelerated tests to choose from. But, what makes a good erosion resistant coating, and how is this performance best tested?
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