Subject · Materials engineering
Keyfiyyətli polad və ərintilərTopics
Topic plan
The subject's topics and the learning outcomes attached to each one.
1. Atomic crystal structure of metals. amorphous state of metals and liquid crystals
LectureThe structure of the ideal atom-crystal lattice of metals, the characteristics of amorphous materials and the basics of the liquid crystal state.
2. The true structure and defects of crystals. the mechanism of the crystallization process and polymorphism
LecturePoint, linear and surface defects present in real crystals, kinetics of the crystallization process and allotropic (polymorphic) transformations.
3. Alloying elements and compounds that make up quality steels. classification and marking of quality steels
LectureThe role of beneficial alloying elements and harmful additives in steel, their classification according to standards and marking rules.
4. Effect of alloying elements on phase and structural transformations of steel. properties of alloyed ferrite and austenite, thermodynamic activity of carbon in iron
LectureEffects of alloying elements on phase diagrams, changes in properties of solid solutions (ferrite, austenite) and activity of carbon.
5. Carbide and nitride phases, their regularities. formation of austenite, dissolution of carbides and nitrides and grain growth during heating
LectureCarbide and nitride formation conditions in steels, austenitization process during heating and grain size control.
6. Decomposition of supercooled austenite and formation of new structural phases
LectureMechanisms of pearlite, bainite and martensite transformations during isothermal and continuous cooling of austenite.
7. Tempering, tempering and recrystallization, dispersion hardening and embrittlement in tempered steels
LectureProcesses that occur during heating of forged steel: removal of residual stresses, precipitation (dispersed) hardening and tempering embrittlement.
8. Engineering structural steels and their types
LectureCharacterization of cemented and improved steel groups resistant to high dynamic loads used in the machine-building industry.
9. Cementitized and nitrogenized structural steels
LectureProperties of steels impregnated with carbon (cementing) and nitrogen (nitriding) to increase surface hardness and wear resistance.
10. Roller bearing and spring - spring structural steels
LectureStructural properties of bearing steels resistant to high contact fatigue and spring-ressor steels with high yield strength.
11. Steels with high strength and special properties
LectureStudy of martensite-aged and other high strength steels as well as special property steels for specific applications.
12. Tool steels, their main properties and requirements. classification, groups and thermal processing technologies of tool steels
LectureRed resistance, hardness properties and processing technologies of steels used in the manufacture of cutting, measuring and stamping tools.
13. Stainless, fire-resistant, heat- and fire-resistant steels and alloys and their thermal treatment modes
LectureHigh-alloy steels and alloys that are corrosion-resistant (stainless) and can work at high temperatures (heat-resistant, refractory).
14. Steels with special physical properties. basic mechanical and technological properties of steels
LectureSteels with specific physical properties such as magnetism, thermal expansion, electrical resistance, and general mechanical/technological performance.
15. Names and brief explanations of the main mechanical and technological properties of steels
LectureInterpretation of mechanical properties such as strength, yield strength, relative elongation, impact viscosity and technological properties such as weldability, cutability.
16. Types and places of use of steels with special physical properties
LectureClassification of steels with special physical properties such as transformer steels, invar, elinvar, and application areas in the device manufacturing industry.
17. High-strength and special structural steels. types, brands and thermal treatment of tool steels
LectureComprehensive comparison and grading of structural and complex-shaped cutting/stamping tool steels withstanding high loads.
18. Structural transformations occurring in supercooled austenite. types, brands and thermal treatment of structural steels
LectureApplication of phase transformation diagrams (s-curves) to processing regimes of structural steels and planning of thermal operations.
19. Comparative explanation of alloy and quality steels. thermodynamic activity of carbon in iron
LectureStructure of steels alloyed with plain carbon quality steels, technological advantages and thermodynamic behavior of carbon atoms in iron.
20. Influence of alloying elements on the crisis points and properties of steel
LectureEffect of elements such as chromium, nickel, manganese, tungsten on the temperature of $a_1$, $a_3$ and $a_{cm}$ crisis points and mechanical properties of steel.
21. Metallarda kristallik fəza qəfəsləri və onlardakı qüsurlar. structure and properties of alloyed ferrite and austenite phases formed in quality steels.
LectureFormation mechanisms and microstructural characteristics of complex solid solutions (alloyed ferrite and austenite) against the background of defective crystal lattices.
22. Review of completed course materials.
LectureGeneral repetition and systematization of materials science and thermal processing of steels studied throughout the course.