AUSTENITE. The coarse crystalline molecular structure formed in
           steel during heat treating.

CRYOGENICS. The American Society of Cryogenics defines it as,
           "...the art and science of achieving extremely  low
           temperatures."

MARTENSITE. The fine crystalline molecular structure formed in
           steel during the quench portion of the heat treating
           process.

TEMPERING. The final phase of traditional heat treating where the
           steel is put in an oven to stabilize the fresh martensite
           formed during the quench  as well as set the final hardness.
           It is also performed after  cryogenic processing because
           more fresh martensite is formed.