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Garbuzova KR1 Option 10
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Option 10
1. Describe the phenomenon of polymorphism in the application to titanium. What practical significance
it has?
2. In what way can the plasticity of cold-rolled copper tape be restored?
Assign a heat treatment mode and describe the nature of the processes occurring.
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 1.4% C. What is the structure of 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 a curve of a mode of the thermal processing providing hardness obtaining 60 ... 63 HRC.
Specify how this mode is called and what structure is obtained. Describe the essence
Occurring transformations.
5. Using the iron-cementite state diagram, describe the structural transformations,
The reactions occurring during heating of the hypereutectoid steel. Show the critical points AC1 and AS3 for
Chosen by you steel. Set the heating mode of this steel for quenching. Describe
The quenching process, describe the structure and properties of steel obtained.
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