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Materials Science Control 2 Option 16 by Garbuzov
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Complete answers are given to 5 questions of 16 version 2 of the control work on materials science according to the methodology of Garbuzovoy N.E.
1. Select steel for making springs. Assign a thermal treatment mode, describe the microstructure and properties of the springs in the finished state. How can fatigue strength of springs be increased?
2. Steel P10K5F5 was chosen for making machine taps. Specify the composition and determine the steel group for the purpose. Assign a mode of heat treatment, give its justification, explaining the effect of doping on the transformations occurring at all stages of heat treatment of this steel. Describe the structure and properties of the steel after heat treatment.
3. 08X17T steel has been chosen for manufacturing parts operating in corrosive environments. Specify the composition and determine the steel group for the purpose. Explain the purpose of the alloying elements introduced into this steel.
4. For the manufacture of certain parts of the aircraft selected alloy B95. Specify the composition of the alloy, describe the method of its hardening, explaining the nature of the hardening, and specify the characteristics of the mechanical properties of the alloy.
5. Describe heat-resistant and heat-resistant plastics (with a heat resistance above 200 ° C). Specify the conditions for their application.
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