Many times i see pictures of or videos about very handsome blades. Only very rarely do I see any reference to the metallurgical processes that go into making a fine blade....hardening,.normalizing, tempering. Either people do not do these things or they ignore them in their explanation of the how to.
An excellent video that includes all of these ideas is Bob Lewis’ “how to make a razor”. Very thorough.
https://www.youtube.com/watch?v=tvFO3TqhDj0
Pete