Garbuzova KR1 Option 41
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1. Describe the types of imperfections in the crystalline structure of real metals.
2. How does the performance of the parts change after blasting
Processing and why?
3. 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 2.7% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. Draw a diagram of the isothermal transformation of austenite for steel V8, apply
On it is a curve of the isothermal treatment regime, which provides a hardness of 150 NW.
Specify, as this mode is called, describe the essence of transformation and what structure gets
I´m in this case.
5. Describe the structure and properties of steel 45 and V12 after quenching from a temperature of 760 and 840 °
C (explain using the iron-cementite state diagram). Choose the best one
A mode of heating under hardening of each steel.
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- Updated on the site 15.05.2017
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Garbuzova KR1 Option 41
Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Amount of purchases from the seller: $
Your discount: %
Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Amount of purchases from the seller: $
Your discount: %
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