Garbuzova KR1 Option 20

Product description

Option 20

• Describe the conditions for obtaining a fine-grained structure of the metal when spontaneously

Developing crystallization (using Tammann curves).

• What is cold plastic deformation? How does the structure and

Properties of metal?

• 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 1.6% C. What is the structure of this

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

• Using the state diagram, iron-iron carbide and the hardness change curve in

Depending on the tempering temperature, assign a heat treatment mode for the carbonaceous

Steel 45, required to provide a hardness of 550 HB. Describe the transformations taking place

At all stages of heat treatment, and the structure obtained after processing.

• What are the causes of internal stresses during hardening? How

Can protect the product from the formation of hardening cracks?