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Garbuzova KR1 Option 32
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Option 32
1. Draw a state diagram for the case of the formation of a eutectic consisting of
Bounded solid solutions. Describe the structure of the various alloys formed in this
System.
2. How does the dislocation density change during plastic deformation of metals? Influence
Dislocations on the properties of the metal.
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
This alloy at room temperature and how such an alloy is called?
4. Draw a diagram of the isothermal transformation of austenite for steel V8, apply
On it is a curve of the isothermal treatment regime, which provides a hardness of 500 HB.
Specify, as this mode is called, describe the essence of transformations and what structure you get
In this case.
5. Using the iron-cementite state diagram, describe the structural transformations,
Occurring when any hypereutectoid steel is heated. Show the critical points AC3 and Asm
For the steel you have chosen, set the optimal heating temperature of this steel for quenching.
Describe the process of quenching, describe the ongoing transformations and the structure obtained
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