see that point way over there in the distance? you missed it.
__________________ Land of the free, home of the brave...
Do you think we will ever be saved?
In this land of dreams find myself sober...
Wonder when will it'll all be over...
Living in a void when the void grows colder...
Wonder when it'll all be over?
Will you be laughing when it's over?
This is pretty much the way it works in his movies. Magneto bent Wolverine's claws in the train scene and he was shot through the brain in the latest film and the adamantium reverted to normal.
In the comics, this may not be the case but there is a Wolverine one-shot called inner fury where he is infected with nanites which causes his healing factor to attack the adamantium on his bones. He ends up becoming deformed and his claws are exposed as bone. At the end of the comic, he pops his bone claws into his brain and it reboots his immune system. The Adamantium ends up reforming back on his bones. The comic came out in 1992 before Magneto pulled the adamantium from his bones, so it may not be cannon.