- Arts & Culture 5648
- Books in Foreign Languages 215
- Business & Economics 4526
- Computers 2231
- Dictionaries & Encyclopedias 651
- Education & Science 95574
- Abstracts 1141
- Astrology 13
- Astronomy 13
- Biology 31
- Chemistry 3877
- Coursework 4019
- Culture 30
- Diplomas 2566
- Drawings 1425
- Ecology 30
- Economy 344
- English 1046
- Entomology 2
- Ethics, Aesthetics 22
- For Education Students 26855
- Foreign Languages 116
- Geography 20
- Geology 17
- History 286
- Maps & Atlases 36
- Mathematics 14132
- Musical Literature 7
- Pedagogics 234
- Philosophy 189
- Physics 15299
- 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 20673
- Textbooks for Colleges and Universities 533
- Theses 189
- To Help Graduate Students 25
- To Help the Entrant 114
- Vetting 418
- Works 58
- Информатика 15
- Engineering 3320
- Esoteric 959
- Fiction 3281
- For Children 420
- House, Family & Entertainment 2541
- Law 2835
- Medicine 1169
- Newspapers & Magazines 348
- Security 287
- Sport, Tourism 1002
- Website Promotion 650
Garbuzova KR1 Option 18
Refunds: 0
Uploaded: 15.05.2017
Content: mat_v18.rar 155,5 kB
| 200 $ | the discount is | 15% |
| show all discounts | ||
| 1 $ | the discount is | 1% |
Seller
Михаил_Перович
information about the seller and his items
Seller will give you a gift certificate in the amount of
Product description
Option 18
1. What are solid substitution and introduction solutions? Give examples.
2. How and why do metal properties change during cold plastic deformation?
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 a phase rule) for an alloy containing 0.8% C. What is the structure of this
Alloy at room temperature and how such an alloy is called?
4. Using a state diagram, iron-iron carbide and a graph of the dependence
Hardness from the tempering temperature, set the heat treatment mode (quenching temperature,
Cooling medium and tempering temperature) of articles of steel 50 that must have
Hardness 230 ... 250 HB. Describe the microstructure and properties of steel 50 after thermal
Processing.
5. Steel 40 was quenched from temperatures of 760 and 840 ° C. Using the diagram
State of iron-cementite, indicate the chosen heating temperatures and describe the transformations,
Which occurred in two modes of hardening. Which regime should be preferred and
why?
Feedback
0