I've read a little on this subject also and am interested in the comments.
From what I've read you take your blade (simple steel 1084, 1095) to austenizing and soak. Do an interrupted quench at 600 - 500 F. Immediately transfer to the oven at 450 F. Hold for 3 or more hours. This results in lower Bainite which is a little softer than Martensite tempered at the same temperature but a lot tougher. If I've misconstrued something let me know. Also, I'm not sure about more complex alloys.