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Option 4
1. Describe the physical nature and mechanism of the crystallization process.
2. What is the purpose of recrystallization annealing? How to assign a mode of this kind
Processing? Give some specific examples.
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 0.4% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. Using a diagram of the isothermal transformation of austenite, explain why
It is impossible to obtain a purely martensitic structure in steel when it is cooled at a rate less than
Critical?
5. After the heat treatment of carbon steel, a cementite +
Martensite of tempering. Apply to the state diagram the iron-cementite ordinate of the specified steel
(Approximately) and justify the heating temperature of this steel for quenching. Also indicate the temperature
Describe the transformations that occurred during heat treatment.
1. Describe the physical nature and mechanism of the crystallization process.
2. What is the purpose of recrystallization annealing? How to assign a mode of this kind
Processing? Give some specific examples.
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 0.4% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. Using a diagram of the isothermal transformation of austenite, explain why
It is impossible to obtain a purely martensitic structure in steel when it is cooled at a rate less than
Critical?
5. After the heat treatment of carbon steel, a cementite +
Martensite of tempering. Apply to the state diagram the iron-cementite ordinate of the specified steel
(Approximately) and justify the heating temperature of this steel for quenching. Also indicate the temperature
Describe the transformations that occurred during heat treatment.
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Garbuzova KR1 Option 04
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Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
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Your discount: %
0.13 $ gift card for a positive review
Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Check your discount
Amount of purchases from the seller: $
Your discount: %
0.13 $ gift card for a positive review