Garbuzova КР1 Option 35
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Product description
Option 35
- What is the essence of the phenomenon of polymorphism and what is its practical significance?
Give an example.
- How is the recrystallization annealing mode selected? For what purposes is it appointed?
Consider the example of nickel.
- Draw a diagram of iron-iron carbide, indicate the structural components in
All regions of the diagram, describe the transformations and construct a cooling curve (using
Phase rules) for an alloy containing 1.8% C. What is the structure of this alloy at room temperature
Temperature and how such an alloy is called?
- Products made of steel 50 are hardened: the first - from the temperature of 740 ° C, and the second - from
Temperature 820 ° C. Using the iron-cementite status diagram, indicate the selected
Temperature and explain which of these products has a higher hardness and better
Operational properties and why.
- Carbon steel U8 after one type of heat treatment received the structure
Plate perlite, and after another type - granular perlite. What heat treatment was
Applied in the first and second cases?