That sounds interesting, but I think we need a bit more information to be sure we're finding the same product you're talking about.
Lenox Gold bimetal utility knife blades are one example. They are sold at Home Depot. The edge is a strip of HSS laser welded to a milder steel back. They come sharper than the regular Stanley blades (verified under 100x magnification) and last longer, too. They can be bent into a U shape without shattering, although the edge portion will crack if you do this.
I am a remodel carpenter and the Lenox blades are all I use anymore. I recommend them highly.