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Garbuzova KR1 Option 45
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Option 45
1. How does the real environment affect the crystallization process?
2. The tin rods were deformed at a temperature of 20 ° C. Explain why these
The bars did not harden during deformation, and describe the processes taking place in this process.
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 the phase rule) for an alloy containing 0.45% C. What is the structure
This alloy at room temperature and how such an alloy is called?
4. After quenching of carbon steel U8, a structure was obtained consisting of a trochanter and
Martensite. Draw on the diagram of the isothermal transformation of supercooled austenite
Curve, cooling, providing such a structure. Describe the transformations,
Which occurred in the steel upon cooling, its hardness.
5. Display graphically the annealing mode for obtaining ferritic 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?
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