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.
Heat Treatment Processes Hardening. Hardening involves heating of steel, keeping it at an appropriate temperature until all pearlite is transformed into austenite, and then quenching it rapidly in water or oil. The temperature at which austentizing rapidly takes place depends upon the carbon content in the steel used.
Extreme variations in size of metal parts complicate the work of the heat. treater and should be avoided in the designing of metal parts. This means. there is a limit to the overall size of parts that can be subjected to such. thermal processing. (Figure2.24) shows the conventional hardening, tempering process.