The martensite transformation being a diffusionless shear transformation is represented by a straight line to signify the martensite start temperature.
32.
The martensite transformation being a diffusionless shear transformation is represented by a straight line to signify the martensite start temperature.
33.
Rapid cooling, on the other hand, does not allow time for this separation and creates hard and brittle martensite.
34.
The steel can then be tempered by reheating to a temperature in between, changing the proportions of pearlite and martensite.
35.
This is due to the fact that the steel will change from the austenite phase to the martensite phase after quenching.
36.
The temperature range for transformation of austenite to bainite ( 250 550 �C ) is between those for pearlite and martensite.
37.
When cooled very quickly, during a martensite transformation, the austenite grain-size directly affects the martensitic grain-size.
38.
Most often, these are then cooled very quickly to produce a martensite transformation, putting the solution into a supersaturated state.
39.
For steel 0-0.6 % carbon the martensite has the appearance of lath, and is called lath martensite.
40.
For steel 0-0.6 % carbon the martensite has the appearance of lath, and is called lath martensite.
