| C | SK | CHEMISTRY; METALLURGY |
| C22 | KL | METALLURGY (of iron C21); FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS (general methods or devices for heat treatment of ferrous or non-ferrous metals or alloys C21D; production of metals by electrolysis or electrophoresis C25) |
| C22K | UKL | INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C21D , C22C OR C22F , RELATING TO CHANGING THE PHYSICAL CHARACTERISTICS OF ALLOYS [6] |
| C22K 1/00 | HGR | Changing the physical structure of alloys resulting in shape memory effect; Processes for stabilising or changing such effect; Alloys having shape memory characteristics [6] |
| C22K 3/00 | HGR | Changing the physical structure of alloys resulting in superplasticity; Processes for stabilising or changing such effect; Alloys having superplasticity characteristics [6] |