Spherodizing:
 |
| Spherodizing |
It is a heat treatment process, which result in structure consisting of globules or spheroids of carbide in a matrix of ferrite. This is generally applied to high carbon steel for minimum hardness, maximum ductility and highest machinability. The process can be completed in short time by increasing the temperature. But at higher Spherodizing temperatures, the dissolved carbide particles may reappear in lamellar form during cooling.
High carbon steels and alloy steels are frequently spherodized in order to improve machinability and ductility. Low carbon steels are not generally subjected to this process. Low carbon steels on Spherodizing become very soft and gummy (sticky). Spherodization of these steels therefore does not improve machinability.
COMMENTS