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Garbuzova KR1 Option 24
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Option 24
1. Draw a state diagram for the case of complete insolubility of the components in
Solid form. Specify the structural components in all areas of this diagram and describe
The structure of typical alloys of various compositions occurring in this system.
2. What is the essence and purpose of shot blasting?
3. Draw a diagram of the iron-iron carbide state, indicate (Structural
Components in all areas of the diagram, Describe the transformations and build a curve
Cooling (using the phase rule) for an alloy containing 1.0% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. Describe what is the low-temperature thermomechanical treatment
Structural steel. Why does this process lead to high strength steel?
What are the advantages and disadvantages of the low-temperature version?
Thermomechanical treatment in comparison with high-temperature thermomechanical
Processing?
5. Details of machines made of steel 40 are hardened: one - from the temperature of 760 ° C, and others from
Temperature 830 ° C. Using the iron-cementite state diagram, apply selected
Temperature and explain which of these parts have a higher hardness and
Best performance and why.
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