In article .com,
wrote:

Does any one know if a titanium sword would be a good weapon?


There are only a few titanium alloys that can hold a knife edge.
The most common is being used for comabt knives for the US Navy Seal
teams.

The downside of titanium for swords is weight.
Part of what makes a sword cut is the mass of the blade behind the edge.

It may be suitable for a fencing foil where speed and flexibilty are
more important, or a rapier for similar reasons, but a steel
broadsword made of simple 5160 spring steel would be a better weapon
against armor.