Материаловедение контрольная2 / вариант6 по Гарбузова

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Uploaded: 18.06.2012
Content: 20618185603697.rar (107,86 kB)

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Given exhaustive answers to 5 questions 6 option 2 control work on material for the training manual Garbuzova NE
1. Set the mode of processing of steel gears with 40HGR tver¬dostyu tooth equal to 56 ... 58 HRC. Describe the microstructure and properties of the surface of the tooth and gear core after heat treatment.
2. For the manufacture of punches broaching selected steel P18. Specify the composition of the steel and determine which group intended otno¬sitsya this steel. Give and justify the regime of heat treatment, explaining the effect of doping on the transformations occurring in the ter¬micheskoy treatment of the steel. Describe the microstructure and properties of the punches after the heat treatment.
3. For the superheater pipes used steel 09H14N16B (EI694). Specify the composition of the group and determine the steel for its intended purpose. Assign the mode of heat treatment and provide justification. Describe the effect of temperature on mechanical properties of steel. Specify steel microstructure after heat treatment;
4. For the production of aircraft components selected alloy AMg3. Specify the composition of the alloy, describe the manner in which this is done hardening alloy, and explain the nature of hardening. Specify characteristics meha¬nicheskih properties of the alloy.
5 Film materials, varieties, properties and in mechanical pri¬meneniya region.

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