Are there special Eurail student discounts?
Eurail does not have specific student tariffs. All travelers who are 25 or younger on their first day of travel can buy a Youth Pass. The Youth Pass gives a 35% discount on the Adult fare, and it is valid only in second class.
Students who prefer first class can buy the Adult Pass, or, if they travel in a group, the Saver Pass. Eurail Pass Overview
During your trip in Europe it's wise to bring your student card, since it may entitle you to discounts on museums, accomodation etc.