(Not a complete list by any means -
armor parts in use varied depending on the time period and style)
Both diagrams taken from Knights
and Armor Coloring Book by A.G. Smith, Dover Publications - this is
a really spiffy little book with 42 full page black and white drawings
of different armors from A.D. 100 to 1640. You probably won't want
to color in it, but keep it for reference. Go buy it - it's cheap!
You'll love it!
Maximilian Armor, Germany, 1520
The flutes or corrugations gave the
armor added strength without additional weight. "Maximilian" armor
is often considered to be the height of achievement of the armorer's craft.