- Arts & Culture 5725
- Books in Foreign Languages 215
- Business & Economics 4527
- Computers 2233
- Dictionaries & Encyclopedias 651
- Education & Science 94332
- Abstracts 1141
- Astrology 13
- Astronomy 13
- Biology 31
- Chemistry 3936
- Coursework 4018
- Culture 30
- Diplomas 2566
- Drawings 1425
- Ecology 30
- Economy 344
- English 1046
- Entomology 2
- Ethics, Aesthetics 22
- For Education Students 26859
- Foreign Languages 117
- Geography 20
- Geology 17
- History 286
- Maps & Atlases 36
- Mathematics 12827
- Musical Literature 7
- Pedagogics 234
- Philosophy 189
- Physics 15301
- Political Science 124
- Practical Work 131
- Psychology 475
- Religion 44
- Russian and culture of speech 102
- School Textbooks 69
- Sexology 69
- Sociology 48
- Summaries, Cribs 737
- Tests 20672
- Textbooks for Colleges and Universities 533
- Theses 189
- To Help Graduate Students 25
- To Help the Entrant 114
- Vetting 418
- Works 58
- Информатика 14
- Engineering 3311
- Esoteric 959
- Fiction 3281
- For Children 421
- House, Family & Entertainment 2542
- Law 2826
- Medicine 1169
- Newspapers & Magazines 348
- Security 287
- Sport, Tourism 1002
- Website Promotion 649
Garbuzova KR1 Option 25
Refunds: 0
Uploaded: 15.05.2017
Content: mat_v25.rar 148,97 kB
| 200 $ | the discount is | 15% |
| show all discounts | ||
| 1 $ | the discount is | 1% |
Product description
Option 25
1. Which of the most common metals have a bulk-centered cubic
Lattice? Draw an elementary cell, specify its parameters, coordination number.
2. Indicate the purpose and selection of the recrystallization annealing mode. Consider on
Example of aluminum.
3. 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 the phase rule) for an alloy containing 3.5% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. In the structure of carbon steel 30, after quenching, no residual
Austenite, and up to 30% of residual austenite is observed in the structure of U12 steel. Explain
The cause of this phenomenon. What kind of treatment can eliminate residual austenite?
5. Steel 45 was annealed at temperatures of 830 and 1000 ° C. Describe
Transformations occurring under these annealing regimes, indicate which ones are formed
Structure, and explain the reasons for obtaining different structures and properties. Give the definition
The annealing process and recommend the optimum heating temperature.