Garbuzova KR1 Option 19

Product description

Option 19

• What are the properties of metals and what are the characteristics of the type of bonding these properties

Are conditioned?

• Which temperature separates the areas of cold and hot plastic deformation and

why? Consider the example of copper.

• Draw a state diagram of iron-iron carbide, indicate the structural

Components in all areas of the diagram, describe the transformations and construct a curve

Cooling (using a phase rule) for an alloy containing 4.3% C. What is the structure of this

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

• Using the iron-cementite state diagram, determine the temperature

Normalization, annealing and hardening for steel U10. Describe these types of heat treatment

And describe the structure and properties of steel after each treatment mode.

• Carbon steel 45 and U8, after quenching and tempering, have a martensite structure

Release and hardness: the first - 50 HRC, the second - 60 HRC. Using the iron-

Carbide iron and taking into account the transformations occurring in these steels during tempering, specify the tempe

The hardening temperature and tempering temperature for each steel. Describe the transformations taking place in

These steels in the quenching and tempering process, and explain why steel U8 has a greater hardness,

Than steel 45.