Option 40
1. Draw a state diagram for the case of unbounded solubility of components
In solid form. Describe the structure of the alloys formed.
2. What is hot plastic deformation? What processes occur in this case?
Describe the nature of the change in structure and properties.
3. Draw a diagram of the iron-iron carbide state, indicate the structural
Components in all areas of the diagram, describe the transformations and construct a curve
Cooling (using a phase rule) for an alloy containing 0.35% C. What is the structure
This alloy at room temperature and how such an alloy is called?
4. Display graphically the annealing mode for obtaining pearlite malleable cast iron.
Describe the structural transformations that occur during the annealing process. What are the mechanical
Properties of cast iron after heat treatment, its structure?
5. After the heat treatment of carbon steel, the structure is obtained: cementite +
Martensite of tempering. Apply to the state diagram the iron-cementite ordinate of the specified steel
(Approximately) and specify the heating temperature of this steel for quenching. Assign a temperature
Leave, providing the receipt of the specified structure and describe all the transformations that
Were committed in steel during the tempering and tempering process.