1 Clinical nurse specialist (CNS) â Working in hospitals, clinics, nursing homes, private offices, and community-based settings, CNSs handle a wide range of physical and mental health problems. 2  They also work in consultation, research, education, and administration.
I pass this heat treatment definition along until I'm corrected or find a more succinct, better one. Heat treatment is the controlled heating and cooling of a metal in order to change its properties. Forging is controlled heating and cooling but is not considered a heat treatment by metallurgists, probably because of the plastic deformation involved.
Flame-hardening is an ideal, time-tested method for steel hardening. And there are several types of steel that work well for the flame-hardening process. One example is hardening 4140 steel. Another is hardening 1045 steel. Flame-hardening cast iron has also been done with success. The clutch plate shown in the photo below is made of cast iron, as is the cam shaft sample shown to the right.