Garbuzova KR1 Option 11

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Option 11

• Describe the linear imperfections of the crystalline structure. How do they affect

Properties of metals and alloys?

• What is the difference between elastic and plastic deformation? Between brittle and viscous

Destruction?

• 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 0.5% C. What is the structure of this

Alloy at room temperature and how such an alloy is called?

• Draw a diagram of the isothermal transformation of austenite for steel V8, apply

On it is the curve of the isothermal treatment regime, which provides hardness of 50 HRC.

Specify, as this mode is called, describe the essence of the transformation and what structure you get

In this case.

• Using the iron-cementite state diagram, describe the structural transformations,

Occurring at heating of steel U12. Specify the critical points and select the optimal mode

Heating of this steel for quenching. Describe the process of quenching, describe the

Structure and properties of steel.