Garbuzova КР1 Option 37

Product description

Option 37

• What is a dislocation? Types of dislocations and their influence on mechanical properties

Metal.

• Strips of lead were rolled at room temperature with varying degrees

Compression ratio: 10. 20, 40, 60%. After rolling, the hardness of all the sheets turned out to be practically

Unchanged. Explain why hardening of lead is not observed during deformation in these

Conditions. What processes are accompanied by deformation of lead at room temperature

Perature?

• 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 0.01% C. What is the structure

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 a curve of a mode of thermal processing providing hardness 350 НВ. Describe

The essence of transformations and what structure is obtained with this treatment.

• How does the structure and properties of steel 30 and V11 change as a result of quenching from

Temperatures of 750 and 850 ° C. Explain with the use of the iron-cementite state diagram.

Choose the optimal hardening mode for each steel.